Test device and test method for disconnecting switch opening and closing capacitive current test mode 3

Abstract

The invention discloses a test device and a test method for an opening and closing capacitive current test mode 3 of an isolation switch, and relates to the field of isolation switch detection. A power frequency test transformer automatic console, an isolation switch automatic console and a measurement system are all in communication connection with a control terminal; the power frequency test transformer automatic console, the isolation switch automatic console and the measurement system respond to a control instruction issued by the control terminal and control corresponding equipment to execute a test action, and the control terminal performs multiple test control at least based on an equipment model, test parameters and preset test control logic and generates a test result based on feedback parameters. The system responds to the control instruction based on the power frequency test transformer automatic console, the isolation switch automatic console and the measurement system, controls the corresponding equipment to execute the test action, configures the control terminal to perform test control and test result generation, automatically executes the whole-process test, reduces manual intervention, and improves the test efficiency. And the test efficiency is improved while the potential safety hazard is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of disconnector detection, and in particular to a test device and a test method for a third mode of disconnector capacitive current test. Background Art

[0002] The disconnector capacitive current test is a test method for disconnectors specified in GB / T 1985, "High-Voltage AC Disconnectors and Earthing Switches." This test includes three types of tests. Type 3 simulates the actual operating conditions of a disconnector breaking a long busbar to verify the current switching capability of the disconnector.

[0003] The existing test method for the third capacitive current test of the disconnector opening and closing is performed manually. However, since the test process simulates the actual working conditions of the disconnector under a high-voltage load scenario, the high-voltage side and test circuit of the power frequency test transformer, disconnector and other equipment used for the test are all in a state of high voltage operation, and the mechanism side of the disconnector is in a state of low voltage operation such as 220V or 380V. In addition, personnel are required to perform a large number of equipment adjustment operations during the existing test process, which leads to a large safety hazard in the existing test method and omissions in certain adjustment operations. In order to avoid the occurrence of the above-mentioned safety hazards or to find omissions that need to be improved, the existing technology needs to reduce the voltage and disconnect the low voltage and high voltage of the entire system when the equipment needs to be adjusted, and after the adjustment is completed, the low voltage and high voltage are closed and boosted again for testing, resulting in the problem of reduced test efficiency in the existing test method. Summary of the Invention

[0004] In view of the above problems, this application provides a test device and test method for the third mode of capacitive current test of isolating switch opening and closing, so as to achieve the purpose of improving test efficiency while avoiding safety hazards. The specific scheme is as follows:

[0005] In a first aspect, the present application provides a test device for a third mode of testing capacitive current during opening and closing of an isolating switch, comprising:

[0006] Power frequency test transformer automatic control console, disconnector automatic control console, measurement system and control terminal,

[0007] The power frequency test transformer automatic control console, the disconnector automatic control console and the measurement system are all communicatively connected to the control terminal;

[0008] The power frequency test transformer automatic control console is used to control the power frequency test transformer to perform a first type of test action in response to a first control instruction issued by the control terminal, and send a first action state parameter to the control terminal, where the first action state parameter represents an execution result of the first type of test action;

[0009] The isolating switch automatic control console is used to control the actuating mechanism of the tested isolating switch and the tested isolating switch to perform a second type of test action in response to a second control instruction issued by the control terminal, and send a second action state parameter to the control terminal, where the second action state parameter represents the execution result of the second type of test action, and the power frequency test transformer and the tested isolating switch are both connected to the test circuit;

[0010] The measurement system is configured to collect at least a load-side current value of the tested disconnector, a power-side voltage and a load-side voltage of the tested disconnector and / or their waveforms in response to a third control instruction issued by the control terminal, and send the obtained third action state parameter to the control terminal;

[0011] The control terminal is used to generate the first control instruction, the second control instruction and the third control instruction multiple times based on at least the equipment model, test parameters and preset test control logic, and send the first control instruction to the power frequency test transformer automatic control console, send the second control instruction to the disconnector automatic control console, and send the third control instruction to the measurement system to perform multiple test controls; when each of the test controls is completed without abnormality and the current number of test control completions is not less than a preset threshold, generate test results based at least on the first action state parameter, the second action state parameter and the third action state parameter.

[0012] In a possible implementation, the power frequency test transformer automatic control console includes:

[0013] Controller and data acquisition device,

[0014] The signal input end of the controller is communicatively connected to the control terminal, and the signal output end of the controller is electrically connected to the control end of the power frequency test transformer;

[0015] The signal input end of the data acquisition device is communicatively connected to the signal output end of the power frequency test transformer, and the signal output end of the data acquisition device is communicatively connected to the control terminal;

[0016] The controller is used to control the power frequency test transformer to perform a first type of test action in response to the first control instruction;

[0017] The data acquisition device is used to collect at least the first action state parameters including the button status of the power frequency test transformer automatic control console, the total high-voltage current value output by the transformer, and the door interlock status.

[0018] In a possible implementation, the isolating switch automatic control console includes:

[0019] Controller and data acquisition device,

[0020] The signal input end of the controller is communicatively connected to the control terminal, and the signal output end of the controller is electrically connected to the control end of the action mechanism and the control end of the tested isolating switch respectively;

[0021] The signal input end of the data acquisition device is communicatively connected to the signal output end of the action mechanism and the signal output end of the tested isolating switch, respectively, and the signal output end of the data acquisition device is communicatively connected to the control terminal;

[0022] The controller is used to control the action mechanism and the tested disconnector to perform a second type of test action in response to the second control instruction;

[0023] The data acquisition device is used to collect the second action state parameters including the control voltage of the action mechanism and the opening state of the tested disconnector.

[0024] In a possible implementation, the test device further includes:

[0025] Two groups of photoelectric conversion devices, one end of each of the photoelectric conversion devices is electrically connected to a controller signal input terminal and a data acquisition device signal output terminal of a target control console, and the other end of each of the photoelectric conversion devices is communicatively connected to the control terminal, wherein the target automatic control console is the power frequency test transformer automatic control console or the isolating switch automatic control console;

[0026] The photoelectric conversion device is used to convert the control instruction sent by the control terminal into an optical signal for transmission, and is also used to convert the target action state parameter sent by the target automatic control console into an optical signal for transmission, and is also used to convert the third action state parameter output by the measurement system into an optical signal for transmission, wherein the target action state parameter is the first action state parameter or the second action state parameter.

[0027] In one possible implementation, the photoelectric conversion device includes:

[0028] An electro-optical conversion device, an optical fiber, and a photoelectric conversion device, wherein the electro-optical conversion device is connected to the photoelectric conversion device via the optical fiber;

[0029] The electro-optical conversion device is used to convert the control instruction or the target action state parameter or the third action state parameter of the electrical signal type into the optical signal, wherein the control instruction is at least one of the first control instruction, the second control instruction and the third control instruction;

[0030] The photoelectric conversion device is used to convert the optical signal into the control instruction or the target action state parameter or the third action state parameter of the electrical signal type.

[0031] The second aspect of the present application provides a control terminal, including: the control terminal in the test device of the third test mode of capacitive current of the isolating switch provided in the first aspect of the present application and any one of the possible implementations of the first aspect.

[0032] A third aspect of the present application provides a test method for a third mode of capacitive current testing of an isolating switch, which is applied to a control terminal provided in the second aspect of the application. The test method for the third mode of capacitive current testing of an isolating switch includes:

[0033] Obtaining an equipment model and test parameters, and performing multiple test controls based at least on the equipment model and test parameters to execute the test process of the third mode of the disconnector opening and closing capacitive current test, after each test control is completed without abnormality, generating a test result based at least on the received first action state parameter, second action state parameter, and third action state parameter, and determining whether the number of completions of the current test control is not less than a preset threshold, if so, outputting the test result, if not, executing the next test control, wherein the test control includes:

[0034] Generate a first control instruction, a second control instruction, and a third control instruction based at least on the equipment model, the test parameters, and the preset test control logic, and send the first control instruction to the power frequency test transformer automatic control console so that the power frequency test transformer automatic control console responds to the first control instruction and controls the power frequency test transformer to perform a first type of test action, send the second control instruction to the disconnector automatic control console so that the disconnector automatic control console controls the actuating mechanism of the tested disconnector and the tested disconnector to perform a second type of test action in response to the second control instruction, and send the third control instruction to the measurement system so that the measurement system collects at least the load-side current value of the tested disconnector, the power-side voltage and the load-side voltage of the tested disconnector, and / or their waveforms;

[0035] The first action state parameter fed back by the power frequency test transformer automatic control console, the second action state parameter fed back by the disconnector automatic control console, and the third action state parameter fed back by the measurement system are obtained.

[0036] In one possible implementation, generating the first control instruction, the second control instruction, and the third control instruction based at least on the device model, the test parameters, and the preset test control logic includes:

[0037] Based on the state of the tested disconnector and the number of times the current test control is completed, searching the preset test control logic for a current test control logic that is compatible with both the device model and the test parameters;

[0038] The first control instruction, the second control instruction and the third control instruction required for the test control are generated by using the current test control logic based on the equipment model, the test parameters and the state of the tested disconnector.

[0039] In a possible implementation, before sending the first control instruction to the power frequency test transformer automatic console so that the power frequency test transformer automatic console responds to the first control instruction and controls the power frequency test transformer to perform the first type of test action, sending the second control instruction to the disconnector automatic console so that the disconnector automatic console responds to the second control instruction and controls the actuating mechanism of the disconnector under test and the disconnector under test to perform the second type of test action, and sending the third control instruction to the measurement system so that the measurement system collects at least the load-side current value of the disconnector under test, the power-side voltage and the load-side voltage of the disconnector under test, and / or their waveforms, the process further includes:

[0040] Collecting current status information of the power frequency test transformer automatic control console, the disconnector automatic control console, and the measurement system, and performing equipment status detection based on the test conditions in the current test control logic and the current status information;

[0041] When the equipment status detection result is normal, the following operating steps are executed: sending the first control instruction to the power frequency test transformer automatic control console so that the power frequency test transformer automatic control console responds to the first control instruction and controls the power frequency test transformer to perform the first type of test action; sending the second control instruction to the disconnector automatic control console so that the disconnector automatic control console responds to the second control instruction and controls the actuating mechanism of the disconnector under test and the disconnector under test to perform the second type of test action; and sending the third control instruction to the measurement system so that the measurement system collects at least the load side current value of the disconnector under test, the power supply side voltage and the load voltage of the disconnector under test and / or their waveforms.

[0042] In a possible implementation, the test method of the third mode of the isolating switch opening and closing capacitive current test further includes:

[0043] For each of the above tests, the following controls were applied:

[0044] Monitor the first operating parameter of the power frequency test transformer automatic control console, the second operating parameter of the isolating switch automatic control console and the third operating parameter of the measurement system, and when the target operating parameter triggers a preset abnormal condition, send a voltage reduction control signal and a tripping control signal to the power frequency test transformer automatic control console, and disconnect the power frequency transformer input at the lowest voltage of the power frequency test transformer, so that the power frequency test transformer automatic control console controls the power frequency test transformer output voltage to zero; at the same time, send a tripping control signal to the isolating switch automatic control console, disconnect the isolating switch mechanism input, and make the isolating switch mechanism input voltage zero, and the target operating parameter is at least one of the first operating parameter, the second operating parameter and the third operating parameter.

[0045] By means of the above technical solution, the present application provides a test device and test method for the third test mode of capacitive current of the isolating switch opening and closing. By configuring the power frequency test transformer automatic control console to respond to the first control instruction issued by the control terminal, the power frequency test transformer is controlled to perform the first type of test action and the first action state parameter is sent to the control terminal. By configuring the isolating switch automatic control console to respond to the second control instruction issued by the control terminal, the action mechanism of the tested isolating switch and the tested isolating switch are controlled to perform the second type of test action and the second action state parameter is sent to the control terminal. At the same time, by configuring the measurement system to respond to the third control instruction issued by the control terminal, at least the load side current value of the tested isolating switch, the power side voltage and the load side voltage of the tested isolating switch and / or their waveforms are collected, thereby realizing automatic control and automatic data collection of the power frequency test transformer and the tested isolating switch during the test, reducing manual intervention and alleviating the workload of personnel. Compared with the existing technology that requires manual operation and manual reading of parameters, the test efficiency is improved and the occurrence of safety hazards is avoided. And by configuring the control terminal, at least based on the equipment model, test parameters and preset test control logic, the first control instruction, the second control instruction and the third control instruction are generated multiple times, and the first control instruction is sent to the power frequency test transformer automatic control console, the second control instruction is sent to the disconnector automatic control console, and the third control instruction is sent to the measurement system, thereby realizing the automated execution of multiple test controls. Finally, by configuring the control terminal, when each test control is completed without abnormality and the number of completions of the current test control is not less than the preset threshold, the test results are generated based on at least the first action state parameter, the second action state parameter and the third action state parameter, thereby realizing the automated generation of the test results. Compared with the prior art, the present application can complete the automated execution of the test process of the disconnector opening and closing capacitive current test mode three without the need for personnel to manually record data and manually control test steps, thereby improving the test efficiency while avoiding safety hazards. It can be seen that the present application has achieved the invention purpose of improving the test efficiency while avoiding safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] The above and other features, advantages, and aspects of the various embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. Throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the originals and elements are not necessarily drawn to scale.

[0047] Figure 1 This is a structural block diagram of a test device for the third mode of testing the capacitive current of an isolating switch provided in this application;

[0048] Figure 2 A schematic diagram of the structure of a test device for the third test method of the opening and closing capacitive current of an isolating switch provided in this application;

[0049] Figure 3 A schematic diagram of the execution flow of a test method for the third mode of the isolating switch opening and closing capacitive current test provided in this application;

[0050] Figure 4 A test control flow chart provided for this application;

[0051] Figure 5 This is a schematic diagram of the structure of an electronic device provided in this application. DETAILED DESCRIPTION

[0052] The following describes the embodiments of the present application in conjunction with the accompanying drawings. The terms used in the implementation methods of the present application are only used to explain the specific embodiments of the present application and are not intended to limit the present application.

[0053] The embodiments of the present application are described below in conjunction with the accompanying drawings. Those skilled in the art will appreciate that, with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0054] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, and this is merely a way of distinguishing the objects of the same attributes when describing them in the embodiments of the present application. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, so that the process, method, system, product or equipment comprising a series of units need not be limited to those units, but may include other units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0055] To facilitate understanding of this application, the application scenarios of this solution are explained below:

[0056] It has been discovered that for gas-insulated metal enclosed switchgear and controlgear (GIS) operating voltage of 550kV and above, when the disconnector switches a small capacitive current, such as when the disconnector is used to connect or disconnect an unloaded busbar, or when the disconnector is used to connect or disconnect the shunt capacitor of a circuit breaker, there is a risk of destructive discharge to ground. In order to verify whether the design of the disconnector can avoid destructive discharge to ground, GB / T 1985 "High-voltage AC disconnectors and earthing switches" proposes three methods for disconnector switching capacitive current testing: method 1 is a test of disconnector switching a very short busbar section (tube); method 2 is a test of disconnector switching a circuit breaker shunt capacitor under 180° out-of-step conditions; method 3 is a test of the disconnector's capacitive current switching capability, i.e., method 3 of the disconnector switching capacitive current test in this solution. In addition, since air-insulated disconnectors also need to undergo this test, the number of disconnectors undergoing this test is huge. Therefore, in actual scenarios, a large number of switches need to be tested using the above method three.

[0057] In the existing technology, because the test is relatively complicated and trivial, when it is carried out manually, even skilled personnel may sometimes forget some work, such as forgetting to take pre-treatment measures on the transformer to reduce the impedance of the test transformer. It is not until the voltage rises and exceeds the standard requirements during the test that they realize that they have forgotten to take the measures. They can only reduce the voltage and then re-treat before starting the test again, which wastes time and affects the test efficiency.

[0058] During the existing test process, personnel are required to perform tasks such as pressurization, operating measuring equipment, recording power frequency data, and closing and opening the disconnector under test. When there are only two test personnel, these tasks may cause confusion, especially for newcomers who are not familiar with the test.

[0059] During existing testing, the high voltage is restricted by a door interlock (a safety door locking device used to enclose the test area). If someone suddenly enters the pressurized test area, the door interlock trips, disconnecting the high voltage and protecting the personnel. However, due to debugging, the low voltage connected to the test disconnector mechanism is not restricted by the door interlock and remains energized. If an abnormality occurs in the mechanism during the test, the wiring needs to be checked, and the mechanism power supply may be forgotten to be disconnected, posing a safety hazard.

[0060] Finally, during the existing test process, a person manually controls the closing and opening of the disconnector under test by remotely pressing the closing and opening buttons. During the test, due to the breakdown and arcing of the disconnector, a high-frequency alternating voltage is generated, which induces alternating charges on the grounded casing. The impedance of the grounding system to high-frequency voltage is greater than the impedance at the power frequency. The frequency of change of the induced charge is high, and there is a continuous flow of charge on the grounding wire, which causes the ground potential to rise and affects the surrounding grounding equipment. At this time, the voltage on the grounding wire may enter the disconnector mechanism and then reach the closing and opening buttons along the control line, posing a threat to the operator. For safety reasons, the operator needs to hold an insulating rod-like object to operate. In addition, the above operations are all performed manually, resulting in reduced test efficiency. Therefore, the existing test method has major safety hazards and low test efficiency.

[0061] The first aspect of the present application provides a test device for a third method of testing the capacitive current of an isolating switch, such as Figure 1 As shown, the test device for the third method of the isolating switch opening and closing capacitive current test includes:

[0062] Power frequency test transformer automatic control console 101, disconnector automatic control console 102, measurement system 103 and control terminal 104,

[0063] The power frequency test transformer automatic control console 101, the disconnector automatic control console 102 and the measurement system 103 are all in communication connection with the control terminal 104;

[0064] The power frequency test transformer automatic control console 101 is used to control the power frequency test transformer to perform a first type of test action in response to a first control instruction issued by the control terminal 104, and send a first action state parameter to the control terminal 104, where the first action state parameter represents the execution result of the first type of test action;

[0065] The disconnector automatic control console 102 is configured to respond to a second control instruction issued by the control terminal 104, control the actuating mechanism of the disconnector under test and the disconnector under test to perform a second type of test action, and send a second action state parameter to the control terminal 104, the second action state parameter representing the execution result of the second type of test action. The power frequency test transformer and the disconnector under test are both connected to the test circuit;

[0066] The measurement system 103 is configured to, in response to the third control instruction issued by the control terminal 104, collect at least the load-side current value of the test disconnector, the power-side voltage and the load-side voltage of the test disconnector and / or their waveforms, and send the obtained third action state parameter to the control terminal 104;

[0067] The control terminal 104 is used to generate the first control instruction, the second control instruction and the third control instruction multiple times based on at least the equipment model, test parameters and preset test control logic, and send the first control instruction to the power frequency test transformer automatic control console 101, send the second control instruction to the disconnector automatic control console 102, and send the third control instruction to the measurement system 103 to perform multiple test controls; when each test control is completed without abnormality and the current number of test control completions is not less than the preset threshold, the test results are generated based on at least the first action state parameter, the second action state parameter and the third action state parameter.

[0068] It should be noted that in actual application scenarios, the above-mentioned power frequency test transformer is a device used to simulate the power frequency voltage conditions in the power grid under actual operating conditions and provide a stable high-voltage power supply for the test. The selection of the power frequency test transformer can be based on the design parameters of the test disconnector. This application does not impose too many restrictions on the specific model of the above-mentioned power frequency test transformer and does not elaborate on it.

[0069] It should be noted that, in actual application scenarios, the above-mentioned power frequency transformer automatic console 101 can be a test transformer console (Test transformer console) for automatically controlling the power frequency test transformer and collecting relevant parameters. Since the existing test transformer console requires manual operation and manual parameter reading. Therefore, the present application controls the power frequency test transformer to perform the first type of test action in response to the first control instruction issued by the control terminal 104 by configuring the power frequency transformer automatic console 101, and sends the first action state parameter to the control terminal 104, thereby realizing automatic control and automatic data collection of the power frequency test transformer during the test process, without the need for manual intervention, reducing the burden on personnel and improving test efficiency.

[0070] It should be noted that, in actual application scenarios, the above-mentioned isolating switch automatic control console 102 can be a test variable control console for controlling the actuating mechanism of the test isolating switch, so as to control the action of the test isolating switch, and automatically collect the action state parameters of the test isolating switch and the action structure. The present application configures the isolating switch automatic control console 102 to respond to the second control instruction issued by the control terminal 104, controls the actuating mechanism of the test isolating switch and the test isolating switch to perform the second type of test action, and sends the second action state parameters to the control terminal 104, thereby achieving automatic control of the actuating mechanism and the test isolating switch and automatic data collection during the test process, without the need for manual intervention, reducing the burden on personnel and improving test efficiency.

[0071] It should be noted that, in actual application scenarios, the above-mentioned measurement system 103 can be a system for collecting the test measurement parameters specified in the third test method of the capacitive current of the isolating switch (i.e., the above-mentioned third action state parameter). There are many types of the above-mentioned test measurement parameters, including but not limited to: the load side current value of the tested isolating switch, the power side voltage and the load side voltage of the tested isolating switch and / or their waveforms. The above-mentioned measurement system 103 can include various types of measuring equipment, and the types of the above-mentioned measuring equipment include but are not limited to: voltage divider (Voltage divider), current transformer (Current transformer, CT), Rogowski coil (RogowskiCoi), etc.

[0072] It should be noted that, in actual application scenarios, the above-mentioned test circuit is a high-voltage power network used to connect the above-mentioned power frequency test transformer, the test disconnector, the measurement system 103 and the load capacitor to form a loop. The load capacitor is a device used to simulate the capacitive load (such as an unloaded bus, a parallel capacitor bank, a long-distance transmission line, etc.) of the disconnector operation under real working conditions, so as to provide a controllable capacitive current environment for the test. In addition to being connected to the above-mentioned power frequency test transformer, the test disconnector and the load capacitor, the above-mentioned test circuit can also be connected to other devices or components used to simulate real operating conditions, such as protective devices. The above-mentioned protective device can be a device such as a current limiting resistor, a protective ball gap, etc., which is used to limit the fault voltage or fault current when an abnormality occurs in the test circuit, or even cut off the test circuit to avoid damage to the equipment involved in the test.

[0073] It should be noted that in actual application scenarios, the above-mentioned first type of test actions are actions performed by the power frequency test transformer as the executor during the test, including but not limited to: closing, opening, stepping up and down, voltage stabilization, voltage regulation and compensation, protection and overload response of the upstream and downstream stages of the power frequency test transformer's voltage regulator.

[0074] It should be noted that, in actual application scenarios, the above-mentioned first action state parameter is the operating state parameter (i.e., execution result) of the power frequency test transformer collected by the power frequency test transformer automatic console 101 during the process of the power frequency test transformer automatic console 101 controlling the power frequency test transformer to perform the first type of test action, and / or after performing the first type of test action. The first operating state parameter characterizes the execution result of the first type of test action. The types of the above-mentioned first action state parameter include but are not limited to: the high-voltage current value on the power frequency test transformer side, the voltage value of the power frequency test transformer measured winding, the total high-voltage current value output by the transformer, the button status of the power frequency test transformer automatic console 101, the door interlock signal, etc.

[0075] It should be noted that, in actual application scenarios, the above-mentioned second type of test action is the action performed by the tested disconnector as the executing subject during the test, including: supplying power to the tested disconnector action mechanism, powering off, increasing voltage, decreasing voltage, opening operation (breaking capacitive current) and closing operation (closing capacitive current).

[0076] It should be noted that, in actual application scenarios, the second operating state parameter is an operating state parameter (i.e., an execution result) of the test disconnector collected by the disconnector automatic control console 102 during and / or after the disconnector automatic control console 102 controls the test disconnector to perform the second type of test action. The second operating state parameter represents the execution result of the second type of test action. Types of the second operating state parameter include, but are not limited to: the operating voltage of the control mechanism that controls the opening or closing of the test disconnector, the opening and closing state of the test disconnector, etc.

[0077] It should be noted that, in actual application scenarios, the actuating mechanism of the above-mentioned test isolating switch is connected to a low voltage and is a driving device for driving the test isolating switch to perform the second type of test action. There are many types of the above-mentioned actuating mechanism, including but not limited to: a spring energy storage mechanism, a hydraulic / starting drive structure, and a servo motor mechanism. The present application realizes automatic control of the test isolating switch by configuring the actuating mechanism of the above-mentioned test isolating switch. Compared with the prior art, the present application does not require manual opening and closing operations of the test isolating switch during the test, thereby avoiding safety hazards.

[0078] It should be noted that, in actual application scenarios, the control terminal 104 may be a terminal device deployed with preset test control logic. The types of the control terminal 104 include, but are not limited to, fixed terminals such as laptop computers, PDAs (personal digital assistants), PADs (tablet computers), and desktop computers.

[0079] It should be noted that, in actual application scenarios, the preset test control logic may be developed based on the disconnector capacitive current test mode 3, and is used to control each test step of the disconnector capacitive current test mode 3 and the inspection steps before and after each test step. Those skilled in the art will understand that the test steps of the disconnector capacitive current test mode 3 in the high-voltage AC disconnector and earthing switch standard GB / T 1985 include the following steps A1 to A5.

[0080] Step A1, preparation: adjust the protective device and test equipment into place.

[0081] Step A2, parameter setting: Select appropriate capacitors so that the capacitive current value reaches 90% to 110% of the standard requirements (such as line charging current or capacitor bank current); according to actual test requirements, set the test voltage to 100% or higher of the rated voltage, correctly connect all devices according to the test circuit, and ensure reliable grounding.

[0082] Step A3, closing and opening operation: includes closing operation and opening operation, wherein the closing operation includes applying voltage to the test disconnector to the test voltage; controlling the test disconnector to close, recording the current value before and after closing, and the typical current waveform and voltage waveform during the closing process. The opening operation includes: controlling the test disconnector to open after the closing operation is completed, recording the voltage value before and after opening, the typical current waveform and voltage waveform during the opening process, and maintaining for a period of time. After the holding is completed, the test voltage is reduced to the minimum, the power frequency test transformer input is disconnected, and the load capacitance is discharged by controlling the closing of the test disconnector. After discharge, the state of the test disconnector is restored to the state before the closing test. One closing and opening operation is counted as one test.

[0083] Step A4, repeat the opening and closing operation of step A3 multiple times, and collect the test parameters such as A3: perform the specified number of closing and opening operations according to the standard requirements (for example, continuous opening and closing 3 times or more).

[0084] Step A5: collecting test parameters of each opening and closing operation.

[0085] It should be noted that the present application configures the control terminal 104 to generate the first control instruction, the second control instruction, and the third control instruction multiple times based on at least the equipment model, test parameters, and preset test control logic, and sends the first control instruction to the power frequency test transformer automatic control console 101, the second control instruction to the disconnector automatic control console 102, and the third control instruction to the measurement system 103, thereby realizing automated execution of multiple test controls. The control terminal 104 is also configured to generate test results based on at least the first action state parameter, the second action state parameter, and the third action state parameter when each test control is completed without exception and the number of times the current test control is completed is not less than a preset threshold, thereby realizing automated generation of test results. Compared with the prior art, the present application can complete the automated execution of the test process of the disconnector opening and closing capacitive current test mode three without the need for human recording and operation, thereby achieving the invention's purpose of improving test efficiency while avoiding safety hazards.

[0086] The present application configures an automatic control console for a power frequency test transformer to respond to a first control instruction issued by a control terminal, controls the power frequency test transformer to perform a first type of test action, and sends a first action state parameter to the control terminal. The application also configures an automatic control console for an isolating switch to respond to a second control instruction issued by the control terminal, controls the action mechanism of the isolating switch under test and the isolating switch under test to perform a second type of test action, and sends a second action state parameter to the control terminal. At the same time, the application configures a measurement system to respond to a third control instruction issued by the control terminal, at least collecting the load side current value of the isolating switch under test, the power side voltage and the load side voltage of the isolating switch under test and / or their waveforms, thereby realizing automatic control and automatic data collection of the power frequency test transformer and the isolating switch under test during the test, reducing manual intervention and alleviating the workload of personnel. Compared with the existing technology that requires manual operation and manual reading of parameters, the application improves test efficiency and avoids the occurrence of safety hazards. And by configuring the control terminal, at least based on the equipment model, test parameters and preset test control logic, the first control instruction, the second control instruction and the third control instruction are generated multiple times, and the first control instruction is sent to the power frequency test transformer automatic control console, the second control instruction is sent to the disconnector automatic control console, and the third control instruction is sent to the measurement system, thereby realizing the automated execution of multiple test controls. Finally, by configuring the control terminal, when each test control is completed without abnormality and the number of completions of the current test control is not less than the preset threshold, the test results are generated based on at least the first action state parameter, the second action state parameter and the third action state parameter, thereby realizing the automated generation of the test results. Compared with the prior art, the present application can complete the automated execution of the test process of the disconnector opening and closing capacitive current test mode three without the need for personnel to manually record data and manually control test steps, thereby improving the test efficiency while avoiding safety hazards. It can be seen that the present application has achieved the invention purpose of improving the test efficiency while avoiding safety hazards.

[0087] In a possible implementation, the above-mentioned power frequency test transformer automatic control console 101 includes:

[0088] Controller and data acquisition device,

[0089] The signal input end of the controller is communicatively connected to the control terminal 104, and the signal output end of the controller is electrically connected to the control end of the power frequency test transformer;

[0090] The signal input end of the data acquisition device is communicatively connected to the power frequency test transformer automatic control console and the signal output end of the power frequency test transformer, and the signal output end of the data acquisition device is communicatively connected to the control terminal 104;

[0091] The controller is used to control the power frequency test transformer to perform a first type of test action in response to a first control instruction;

[0092] The data acquisition device is used to collect at least the first action state parameters including the button state of the power frequency test transformer automatic control console, the total high voltage current value output by the transformer, and the door interlock state.

[0093] It should be noted that, in actual application scenarios, the controller in the above-mentioned power frequency test transformer automatic control console 101 can be a programmable logic controller (PLC). This application configures the signal input end of the above-mentioned controller to be communicatively connected with the control terminal 104, and configures the signal output end of the controller to be electrically connected with the control end of the power frequency test transformer, so that the controller responds to the first control instruction, controls the power frequency test transformer to perform the first type of test action, and realizes automatic adjustment of the power frequency test transformer during the test process.

[0094] In one possible implementation, the data acquisition device in the power-frequency test transformer automatic control console 101 may be a device for collecting and processing analog and digital electrical signals output from the power-frequency test transformer automatic control console and the signal output terminal of the power-frequency test transformer. Specifically, the data acquisition device may be used to collect electrical signals output from the signal output terminal of the power-frequency test transformer, convert and filter the electrical signals, and then transmit them to the control terminal.

[0095] In one possible implementation, in order to facilitate the test personnel to observe whether the power frequency test transformer correctly executes the first control instruction, the above-mentioned power frequency test transformer automatic control console 101 is configured with a physical button and a display device linked to the controller. The above-mentioned physical button and display device can also be configured as follows: the power frequency test transformer automatic control console 101 responds to the first control instruction, controls the power frequency test transformer to perform the first type of test action, controls the physical button linked thereto to act, and displays the first action state parameter through the display device, so that the test personnel can review according to the action state of the physical button and the first action state parameter displayed on the display device, thereby further improving the reliability of the test process.

[0096] In one possible implementation, the control terminal of the power frequency test transformer is a control signal input terminal of a voltage regulator of the power frequency test transformer. Types of the voltage regulator include, but are not limited to, auto-voltage regulators, inductive voltage regulators, and electronic voltage regulators.

[0097] In a possible implementation, the signal output end of the power frequency test transformer may be a signal output end of a device that outputs the first action state parameter of the power frequency test transformer.

[0098] In one possible implementation, the signal input of the data acquisition device can be connected to the signal output of the power frequency test transformer automatic control console and the power frequency test transformer, and can also be connected to other devices within the test site. For example, to prevent personnel from accidentally entering the test site, an isolation door is used to separate the test site from the personnel observation area. The isolation door is equipped with a door interlock. The signal output of the door interlock is not only connected to the circuit breaker closing and opening control device in the switch cabinet after the control voltage regulator of the power frequency test transformer automatic control console, but also electrically connected to the signal input of the data acquisition device. During the test, all isolation doors are closed, and the door interlock is closed to separate the test site from the personnel observation area. At this time, the door interlock sends a high-level signal to the signal input of the data acquisition device. Upon detecting the high-level signal, the control terminal sends a first control instruction to the power frequency test transformer automatic control console 101 to start the test, and the power frequency test transformer begins to increase the voltage. If any isolation door is opened, the door interlock will switch from a closed state to an open state. At this time, the door interlock will send a low-level signal to the signal input of the data acquisition device. When the control terminal detects a low-level signal, it will not conduct the test, and will display a prompt signal indicating that the door interlock is not closed, reminding the test personnel to close all isolation doors. This avoids the phenomenon that some test personnel waste time on troubleshooting when they cannot apply voltage without closing all isolation doors, thereby improving test efficiency.

[0099] In a possible implementation, the above-mentioned isolating switch automatic control console 102 includes:

[0100] Controller and data acquisition device,

[0101] The signal input end of the controller is communicatively connected to the control terminal, and the signal output end of the controller is electrically connected to the control end of the action mechanism and the control end of the tested isolating switch respectively;

[0102] The signal input end of the data acquisition device is communicatively connected to the signal output end of the action mechanism and the signal output end of the tested isolating switch, and the signal output end of the data acquisition device is communicatively connected to the control terminal;

[0103] The controller is used to control the action mechanism and the tested disconnector to perform a second type of test action in response to the second control instruction;

[0104] The data acquisition device is used to collect the second action state parameters including the control voltage of the action mechanism and the opening state of the tested disconnector.

[0105] It should be noted that, in actual application scenarios, the controller in the above-mentioned disconnector automatic control console 102 may be a programmable logic controller (PLC). This application configures the signal input terminal of the above-mentioned controller to be communicatively connected to the control terminal, and configures the signal output terminal of the controller to be communicatively connected to the signal output terminal of the action mechanism and the signal output terminal of the disconnector under test, respectively, so that the controller responds to the second control instruction, controls the action mechanism and the disconnector under test to perform the second type of test action, and realizes automatic adjustment of the opening and closing state of the disconnector under test during the test process.

[0106] It should be noted that, in actual application scenarios, the signal input end of the above-mentioned data acquisition device can also be communicatively connected with the signal output end of the above-mentioned isolating switch automatic console 102. The signal output end of the above-mentioned isolating switch under test can be the terminal of the closing and opening state feedback line of the above-mentioned action mechanism. After the above-mentioned low-voltage action mechanism drives the isolating switch under test to perform the second type of test action, the terminal will output an analog electrical signal representing that the current state is the opening state or the closing state. The signal output end of the isolating switch automatic console 102 is the relay control end in the above-mentioned isolating switch automatic console 102, and the output end of the voltage regulator. After the relay or voltage regulator of the above-mentioned isolating switch automatic console 102 performs the second type of test action, the control end voltage of the relay is an electrical signal representing whether the current isolating switch automatic console supplies power to the action mechanism of the isolating switch under test, and the output end of the voltage regulator is represented by the magnitude of the above-mentioned power supply voltage.

[0107] In one possible implementation, the data acquisition device in the disconnector automatic control console 102 may also be a device for collecting and processing signals output by the disconnector under test, the actuating mechanism, and the disconnector automatic control console 102. Specifically, the data acquisition device may be used to collect analog electrical signals output by the disconnector under test and the disconnector automatic control console 102, convert and filter the analog electrical signals, and transmit the converted analog electrical signals to the control terminal.

[0108] In one possible implementation, in order to facilitate the test personnel to observe whether the test disconnector correctly executes the second control instruction, the physical buttons and display devices configured on the above-mentioned disconnector automatic console 102 and linked to the controller can also be configured as follows: the disconnector automatic console 102 responds to the second control instruction, controls the action mechanism of the test disconnector or the test disconnector to perform the second type of test action, controls the physical button linked thereto to act, and displays the second action state parameters through the display device of the control terminal, so that the test personnel can review according to the action state of the physical button and the second action state parameters displayed on the display device, thereby further improving the reliability of the test process.

[0109] In one possible implementation, the test device for the third mode of the isolating switch opening and closing capacitive current test provided by the first aspect of the present application and any possible implementation thereof further includes:

[0110] Two sets of photoelectric conversion devices, one end of the photoelectric conversion device is electrically connected to the controller signal input end and the data acquisition device signal output end of the target automatic control console, and the other end of the photoelectric conversion device is communicatively connected to the control terminal, and the target automatic control console is a power frequency test transformer automatic control console or an isolating switch automatic control console;

[0111] The photoelectric conversion device is used to convert the control instructions sent by the control terminal into optical signals for transmission, and is also used to convert the target action state parameters sent by the target automatic control console into optical signals for transmission, and is also used to convert the third action state parameters output by the measurement system into optical signals for transmission, where the target action state parameter is the first action state parameter or the second action state parameter.

[0112] It should be noted that in actual application scenarios, since the existing technology usually transmits electrical signals through cables to achieve communication between the target console and the control terminal, if high-frequency voltage appears in the cable shielding layer during the test, it is very easy to cause a safety accident. Therefore, the present application configures two sets of photoelectric conversion devices, and configures the photoelectric conversion devices to convert the control instructions sent by the control terminal into optical signals for transmission, and is also used to convert the target action state parameters sent by the target automatic console into optical signals for transmission, and is also used to convert the third action state parameters output by the measurement system into optical signals for transmission, thereby avoiding the risk of high-frequency voltage appearing in the cable shielding layer during the test to injure personnel or damage electronic equipment, thereby avoiding safety hazards.

[0113] In a possible implementation, the optoelectronic conversion device is further configured to convert a target control instruction output by the control terminal into an optical signal for transmission, where the target control instruction is the first control instruction or the second control instruction.

[0114] In one possible implementation, the photoelectric conversion device includes:

[0115] An electro-optical conversion device, an optical fiber, and a photoelectric conversion device, wherein the electro-optical conversion device is connected to the photoelectric conversion device via the optical fiber;

[0116] The electro-optical conversion device is used to convert the control instruction or the target action state parameter or the third action state parameter of the electrical signal type into an optical signal, where the control instruction is at least one of the first control instruction, the second control instruction and the third control instruction;

[0117] The photoelectric conversion device is used to convert the optical signal into an electrical signal type control instruction or target action state parameter or third action state parameter.

[0118] It should be noted that, in actual application scenarios, due to the test process of the third test method for the capacitive current of the disconnector opening and closing, a large electromagnetic interference will be generated. Therefore, the present application configures a photoelectric conversion device including an electro-optical conversion device and a photoelectric conversion device connected by an optical fiber, thereby utilizing the anti-interference property of the optical signal due to the characteristics of the electrical signal to improve the data transmission accuracy. In addition, since the analog electrical signal is greatly affected by interference during the transmission process, the distortion caused by the interference will be directly superimposed on the control quantity, thereby affecting the subsequent generation accuracy of the first control instruction or the second control instruction. Therefore, the present application configures an electro-optical conversion device to convert the action state parameter of the analog electrical signal type into an optical signal, and the photoelectric conversion device converts the optical signal into the action state parameter of the digital electrical signal type, thereby utilizing the characteristic that the error of the digital electrical signal can be completely eliminated by the error correction mechanism, reducing the influence of interference during the transmission process, improving the generation accuracy of the first control instruction, the second control instruction or the third control instruction, and thus improving the test accuracy.

[0119] In one possible implementation, during the third mode of the isolating switch capacitive current test, the first, second, and third control instructions can be issued simultaneously or sequentially. Therefore, to improve the accuracy of controlling the order in which the first, second, and third control instructions are issued, the optoelectronic conversion device can be indirectly connected to the control terminal through a router, thereby utilizing the router to accurately adjust the order in which the first, second, and third control instructions are issued.

[0120] In one possible implementation, since multiple tests will generate a large amount of test data, in order to reduce the storage pressure of the control terminal, the test device of the third method of the isolating switch opening and closing capacitive current test provided in this application can also be configured with a storage medium to use the storage medium instead of the control terminal to store the above data.

[0121] In a possible implementation, since the shape of the instantaneous arc, abnormal movement and other behaviors generated by the tested isolating switch during the execution of the above-mentioned second type of test action are important clues to determine whether the test is successful or not, the test device of the third mode of the isolating switch opening and closing capacitive current test provided in this application can also be configured with an image acquisition device (such as an infrared camera, a camera assembly with an image capture function or a high-speed camera) to measure or acquire the above-mentioned test parameters or phenomena. And the image acquisition device can be connected to the test device of the third mode of the isolating switch opening and closing capacitive current test through its own control part or through a router after modification. Taking advantage of the characteristics of the router itself with multiple ports for easy expansion and the ability to form a network with other routers, the test device of the third mode of the isolating switch opening and closing capacitive current test can be easily connected to multiple image acquisition devices or additional measuring equipment.

[0122] To facilitate understanding of the test device for the third method of the isolating switch opening and closing capacitive current test provided by this application, a possible implementation of this application is described here:

[0123] like Figure 2 The figure shows a schematic diagram of a test apparatus for a third type of capacitive current test for an isolating switch. The test apparatus for the third type of capacitive current test for an isolating switch includes: an automatic control console 21 for a power frequency test transformer, an automatic control console 22 for an isolating switch, a photoelectric conversion device 23, a router 24, a measurement system 25, a storage medium 26, other management equipment 27, and a control terminal 28. The automatic control console 21 includes a controller 211 and a data acquisition device 212. The controller 211 is used to control the power frequency test transformer to perform a first type of test action, including transformer closing and opening, transformer voltage step-up and step-down, and overcurrent protection adjustment. The data acquisition device 212 is used to collect first action state parameters, including the output voltage and current of the power frequency test transformer, the key status of the control console, and the door interlock status. The disconnector automatic control console 22 includes a controller 221 and a data acquisition device 222. The controller 221 is used to control the operating mechanism of the disconnector under test and the disconnector under test, executing second control instructions including closing and opening of the mechanism power supply, increasing or decreasing the voltage of the mechanism power supply, and closing and opening of the disconnector. The data acquisition device 222 is used to collect second operating state parameters including the power supply voltage of the low-voltage operating mechanism, the closing and opening states of the disconnector under test, and the key states of the disconnector automatic control console 22. The photoelectric conversion device 23 includes a first electro-optical conversion device 231, a first photoelectric conversion device 232, a second electro-optical conversion device 233, and a second photoelectric conversion device 234.

[0124] The signal input of the controller 211 and the signal output of the data acquisition device 212 are both electrically connected to the first electro-optical conversion device 231. The first electro-optical conversion device 231 is communicatively connected to the first photoelectric conversion device 232 via optical fiber. The first photoelectric conversion device 232 is communicatively connected to the router 24. The signal input of the controller 221 and the signal output of the data acquisition device 222 are both electrically connected to the second electro-optical conversion device 233. The second electro-optical conversion device 233 is communicatively connected to the second photoelectric conversion device 234 via optical fiber. The second photoelectric conversion device 234 is communicatively connected to the router 24. The measurement system 25, storage medium 24, and other management devices 27 are all communicatively connected to the router 24. The router 24 is communicatively connected to the control terminal 28. The other management system 27 may be a superior laboratory management system.

[0125] The second aspect of the present application provides a control terminal, including: the control terminal in the test device of the third test mode of the isolating switch opening and closing capacitive current test provided in the first aspect of the present application and any possible implementation of the first aspect.

[0126] A third aspect of the present application provides a test method for a third mode of capacitive current testing of an isolating switch, which is applied to a control terminal as provided in the second aspect of the present application. The test method for the third mode of capacitive current testing of an isolating switch includes:

[0127] Obtaining the equipment model and test parameters, and performing multiple test controls based at least on the equipment model and the test parameters to execute the test process of the third mode of the disconnector opening and closing capacitive current test, after each test control is completed without abnormality, generating a test result based on at least the received first action state parameter, second action state parameter, and third action state parameter, and determining whether the number of completions of the current test control is not less than a preset threshold, if so, outputting the test result, if not, executing the next test control, wherein the test control includes:

[0128] Generate a first control instruction, a second control instruction, and a third control instruction based at least on the equipment model, test parameters, and preset test control logic, and send the first control instruction to the power frequency test transformer automatic control console so that the power frequency test transformer automatic control console responds to the first control instruction and controls the power frequency test transformer to perform a first type of test action, send a second control instruction to the disconnector automatic control console so that the disconnector automatic control console controls the actuating mechanism of the disconnector under test and the disconnector under test to perform a second type of test action in response to the second control instruction, and send a third control instruction to the measurement system so that the measurement system collects at least a load-side current value of the disconnector under test, a power-side voltage and a load-side voltage of the disconnector under test, and / or their waveforms;

[0129] The first action state parameter fed back by the power frequency test transformer automatic control console, the second action state parameter fed back by the disconnector automatic control console, and the third action state parameter fed back by the measurement system are obtained.

[0130] It should be noted that in actual application scenarios, this application performs multiple test controls based on at least the equipment model and test parameters to execute the test process of the third test mode for the opening and closing capacitive current of the isolating switch. After each test control is completed without abnormality, it is determined whether the current number of test control completions is not less than the preset threshold. If so, the test results are output based on at least the received first action state parameters, second action state parameters and third action state parameters. If not, the next test control is executed, thereby realizing the automatic execution of the entire process of the third test mode for the opening and closing capacitive current of the isolating switch, and improving the test efficiency. And in each test control process, at least based on the equipment model, test parameters and preset test control logic, a first control instruction, a second control instruction and a third control instruction are generated, and the first control instruction is sent to the power frequency test transformer automatic control console, so that the power frequency test transformer automatic control console responds to the first control instruction and controls the power frequency test transformer to perform the first type of test action, and the second control instruction is sent to the disconnector automatic control console, so that the disconnector automatic control console responds to the second control instruction and controls the action mechanism of the tested disconnector and the tested disconnector to perform the second type of test action, and the third control instruction is sent to the measurement system, so that the measurement system at least collects the load side current value of the tested disconnector, the power side voltage and the load side voltage of the tested disconnector and / or their waveforms, so that during the test process, there is no need for manual equipment operation and data collection, thereby avoiding the occurrence of safety hazards, reducing the burden on personnel and improving test efficiency.

[0131] It should be noted that in actual application scenarios, in order to further improve the test efficiency and avoid time-consuming and labor-intensive repetitive work due to the test parameters not meeting the requirements due to the lack of verification by the test personnel, after obtaining the equipment model and test parameters, it is possible to configure the load capacitance configuration scheme that is compatible with the equipment model and test parameters through table lookup and calculation, and output a recommendation on whether a voltage rise suppression circuit is needed, so that the designer can adjust the test circuit at one time based on the output content and test parameters, thereby avoiding repetitive work and improving the test efficiency. Among them, the above-mentioned voltage rise suppression circuit is a circuit used to suppress the substantial increase in voltage on the isolating switch side caused by resonance when the isolating switch is closed and connected to the capacitive load compared to when the isolating switch is open.

[0132] In one possible implementation, in order to further avoid the test failure or equipment damage caused by the lack of relevant configuration of the test circuit used for the test due to omission of the test personnel, before performing the test control, the third aspect of the present application provides a test method of the third mode of the isolating switch opening and closing capacitive current test, which may also include the following steps:

[0133] Step B1: Receive and set test parameters, and trigger step B2.

[0134] In one possible implementation, the test parameters in the above step B1 are used to assist in presetting the test control logic and generate the parameters required for the first control instruction, the second control instruction and the third control instruction, such as: the test number (an identifier used to distinguish the test process and test results), the atmospheric conditions of the test site, the test voltage, the test current, the number of tests, the test interval time, the previously measured closing and opening time of the tested disconnector, etc.

[0135] In one possible implementation, if the currently executed test has been executed before (i.e., the test has been conducted using the same equipment and test conditions), the above-mentioned step B1 can receive the commissioned test number of the test that has been executed, retrieve other historical parameters other than the atmospheric conditions of the test site that are not related to the test equipment, and receive the current atmospheric conditions of the test site, thereby completing the test parameter setting for this test based on the commissioned test number, other historical parameters and the atmospheric conditions of the current test site, and skipping step B2 to trigger step B3.

[0136] Step B2: Receive the equipment parameters of the test equipment and the measurement system, and obtain the auxiliary parameters by looking up the table based on the model, equipment parameters and test parameters of the test equipment. This triggers step B3. If you do not know these parameters, you can skip it and directly trigger step B3.

[0137] In one possible implementation, the auxiliary parameters in step B2 include: a load capacitance configuration method adapted to both the device model and the test parameters, prompt information indicating whether a voltage rise suppression circuit is required obtained through calculation, and suppression circuit configuration parameters when a voltage rise suppression circuit is required.

[0138] In step B3, based on the preset verification logic and the parameters obtained in steps B1 and B2, determine whether the status of each device participating in the test meets the corresponding verification conditions in the preset verification logic. If so, step B4 is triggered. If not, step B5 is triggered.

[0139] In step B4, the output content is a prompt message indicating that the test can be started.

[0140] In step B5, the output content is a prompt message indicating that an abnormality exists, and step B1 is triggered.

[0141] In a possible implementation, in order to further improve the verification accuracy, the above step B3 can also be performed simultaneously with manual verification to perform cross-validation.

[0142] In a possible implementation, the content of the above-mentioned preset verification logic includes but is not limited to: whether the test circuit is complete, the size of the test load, whether the impedance of the power frequency test transformer is adjusted, whether the power frequency test transformer is well connected, whether the corresponding test configuration parameters of the equipment are configured, whether the power supply of the isolating switch power cabinet is connected, whether the power frequency test transformer is closed, whether the test device of the isolating switch opening and closing capacitive current test mode three is connected, whether the door interlock is intact, whether the power supply of the isolating switch mechanism is connected, whether the transformer overcurrent protection is adjusted, etc. The present application determines whether the status of each device participating in the test meets the corresponding verification conditions in the preset verification logic by configuring the parameters obtained based on the preset verification logic and the above-mentioned steps B1 and B2, thereby avoiding the lack of relevant configuration of the test circuit used for the test due to omissions of the test personnel, resulting in duplication of previous preparations, and improving the efficiency of the test.

[0143] In one possible implementation, for configuration information that cannot be verified through system self-test, such as whether the test circuit is complete, the present application can also output verification prompt information of related items through the configuration control terminal to prompt the test personnel to manually check and manually confirm the verification prompt information to obtain the verification result.

[0144] In a possible implementation, the above-mentioned equipment parameters include but are not limited to: the name and parameters of the power frequency test transformer, the load capacitance value and quantity, the name and parameters of the tested isolating switch, etc.

[0145] In one possible implementation, to facilitate subsequent repeated tests, the above-mentioned equipment model, test parameters and test configuration parameters can be associated with the commissioned test number and stored in the control terminal after verification and import, so as to facilitate repeated calls of subsequent tests and improve test efficiency.

[0146] In a possible implementation, to facilitate subsequent analysis and save storage space of the control terminal, the test data and related content at historical moments can be configured to be stored in a storage medium.

[0147] It should be noted that, in actual application scenarios, there are multiple implementation methods for the test method of the third mode of the isolating switch opening and closing capacitive current test provided in the third aspect of the present application. Here, an exemplary method is provided, including:

[0148] like Figure 3 FIG. 1 is a flow chart of an execution flow of a test method for a third test mode of an isolating switch opening and closing capacitive current test, including the following steps S301 to S302 .

[0149] Step S301: Obtain device model, device parameters and test parameters, and trigger step S302.

[0150] In step S302, auxiliary parameters are output through table lookup and calculation based on the device model and test parameters. The auxiliary parameters include: a load capacitance configuration method that is compatible with both the device model and test parameters; a prompt indicating whether a voltage rise suppression circuit is required; and, if so, the suppression circuit configuration parameters. This triggers step S303.

[0151] Step S303: Configure the test device parameters based on the equipment model, test parameters, and auxiliary parameters, and trigger step S304.

[0152] Step S304: Based on the preset verification logic, verify the status of each device according to the test configuration parameters and determine whether each device status has passed the verification. If so, step S305 is triggered; if not, step S303 is triggered.

[0153] In step S305, based on the current test control completion count and the test configuration parameters, test control is performed to execute the test process of the disconnector opening and closing capacitive current test mode 3, and the first action state parameter, the second action state parameter, and the third action state parameter are received. Step S306 is then triggered.

[0154] Step S306: Determine whether the test is normal. If so, step S307 is triggered. If not, step S309 is triggered.

[0155] Step S307: Determine whether the number of times the current test control is completed is not less than a preset threshold. If so, step S308 is triggered. If not, step S310 is triggered.

[0156] Step S308 : disconnecting the power supply and outputting a test result based on at least the first action state parameter, the second action state parameter, and the third action state parameter.

[0157] Step S309: Turn off the power and prompt for manual verification.

[0158] Step S310: add 1 to the number of times the current test control is completed, and trigger step S305.

[0159] In one possible implementation, generating the first control instruction, the second control instruction, and the third control instruction based at least on the device model, the test parameters, and the preset test control logic includes:

[0160] Based on the status of the tested disconnector and the number of times the current test control is completed, the current test control logic that is compatible with the equipment model and test parameters is found from the preset test control logic;

[0161] The current test control logic is used to generate the first control instruction, the second control instruction and the third control instruction required for the test control based on the equipment model, test parameters and the state of the tested disconnector.

[0162] It should be noted that in actual application scenarios, the preset test control logic includes the control method and corresponding control parameters for each test control process. For example, different test parameters result in different preset thresholds for determining the number of tests. Different test numbers and test parameters also result in different voltages applied by the power frequency transformer automatic control console and different measured currents. The specific control process for each test control does not differ significantly.

[0163] In one possible implementation, before sending a first control instruction to the power frequency test transformer automatic control console so that the power frequency test transformer automatic control console responds to the first control instruction and controls the power frequency test transformer to perform a first type of test action, sending a second control instruction to the disconnector automatic control console so that the disconnector automatic control console responds to the second control instruction and controls the actuating mechanism of the disconnector under test and the disconnector under test to perform a second type of test action, and sending a third control instruction to the measurement system so that the measurement system collects at least a load-side current value of the disconnector under test, a power-side voltage and a load-side voltage of the disconnector under test, and / or their waveforms, the method further includes:

[0164] Collect the current status information of the power frequency test transformer automatic control console, disconnector automatic control console and measurement system, and perform equipment status detection based on the test conditions in the current test control logic and the current status information;

[0165] When the equipment status detection result is normal, execute the following operating steps: sending a first control instruction to the power frequency test transformer automatic control console, so that the power frequency test transformer automatic control console responds to the first control instruction and controls the power frequency test transformer to perform a first type of test action; sending a second control instruction to the disconnector automatic control console, so that the disconnector automatic control console responds to the second control instruction and controls the action mechanism of the disconnector under test and the disconnector under test to perform a second type of test action; sending a third control instruction to the measurement system, so that the measurement system collects at least the load side current value of the disconnector under test, the power side voltage and the load side voltage of the disconnector under test and / or their waveforms.

[0166] It should be noted that this application configures and collects the current status information of the power frequency test transformer automatic control console, the disconnector automatic control console and the measurement system, performs equipment status detection based on the test conditions in the current test control logic and the current status information, and executes test control when the equipment status detection result is normal, thereby avoiding the risk of equipment damage due to damage to the tested disconnector or other equipment failures, improving the reliability of the test, and at the same time not counting the number of abnormal tests into the number of normal tests, thereby improving the accuracy and rigor of the test results.

[0167] In a possible implementation, the test method of the third mode of the isolating switch opening and closing capacitive current test further includes:

[0168] Control of each test:

[0169] Monitor the first operating parameter of the power frequency test transformer automatic control console, the second operating parameter of the disconnector automatic control console and the third operating parameter of the measurement system, and when the target operating parameter triggers a preset abnormal condition, send a step-down control signal and a trip control signal to the power frequency test transformer automatic control console, and disconnect the power frequency transformer input at the lowest power frequency test transformer voltage, so that the power frequency test transformer automatic control console controls the power frequency test transformer output voltage to zero, and the target operating parameter is at least one of the first operating parameter, the second operating parameter and the third operating parameter.

[0170] In a possible implementation, the above-mentioned preset abnormal condition can be the value of the above-mentioned target operating parameter when it is easy to cause a safety hazard. For example: the first operating parameter of the power frequency test transformer automatic control console is set to the door interlock state, and the operating parameter should always maintain a high level during operation (indicating that the isolation door is closed and no personnel are present). If it is detected that the door interlock state changes from a high level to a low level during operation, it indicates that the isolation door is open and it is suspected that there are people entering the site. At this time, although the high voltage is disconnected due to the disconnection of the door interlock, the operating mechanism of the tested isolating switch is still energized. In order to avoid electric shock to personnel when checking the tested isolating switch and the operating mechanism, the isolating switch automatic control console needs to send a trip control signal so that the isolating switch automatic control console disconnects the voltage output to the tested isolating switch mechanism. The present application avoids the occurrence of safety hazards and improves the safety of the test by configuring the target operating parameter to send a trip control signal to the isolating switch automatic control console so that the isolating switch automatic control console disconnects the voltage output to the tested isolating switch mechanism when the preset abnormal condition is triggered.

[0171] To facilitate understanding of the process of performing multiple test controls in the test method of the third aspect of the present application and any possible implementation thereof, a possible implementation of the present application is described herein with reference to the following:

[0172] like Figure 4 The figure shows a test control flow chart of the test method of the third test mode of the isolating switch opening and closing capacitive current test. The specific operation steps are as follows:

[0173] Step S401: Start the test, perform a status check on the measuring equipment, and adjust the disconnector under test to the closed state, and trigger step S402.

[0174] In the test step S402, a voltage of the test disconnector is applied to the test voltage, the voltage of the test disconnector is measured by each measuring device in the measurement system, and steady-state load current data and waveform are collected, thereby triggering step S403.

[0175] Step S403: Determine whether the steady-state load current data and waveform of each measuring device meet their respective design requirements. If yes, step S404 is triggered; if not, step S405 is triggered.

[0176] Step S404 records the steady-state load current data and waveforms of each measuring device, performs a preliminary test, adjusts the test disconnect switch to the open state, applies a test voltage of approximately half the rated test voltage, controls the disconnect switch to switch from the open state to the closed state, and monitors the voltage and current of the test circuit. This triggers step S406.

[0177] In step S405, the entire system is powered off, and step S401 is triggered.

[0178] In one possible implementation, after executing the above step S405 and before triggering step S401, a prompt can be configured that the output steady-state load current data and waveform do not meet the test requirements to prompt the test personnel to make adjustments, and step S401 is triggered after receiving the trigger signal input by the test personnel indicating that the adjustment is completed.

[0179] Step S406: Based on at least the voltage, current, the open / closed state of the tested disconnector, and manual monitoring results, use the abnormality verification control logic to determine whether a test abnormality exists. If so, step S407 is triggered. If not, step S408 is triggered.

[0180] It should be noted that, in actual application scenarios, the abnormal verification control logic that can be automatically performed in the above step S406 may include: if discharge occurs during the test, or if the closing feedback signal is not received after a period of time exceeding the closing time, or if the voltage holding time is insufficient after the closing is completed, or if the voltage rise exceeds the requirement after the closing, or if a dialog box appears after the closing is completed and the test personnel interact with the test personnel to learn that the test is abnormal, then the test is considered abnormal.

[0181] Step S407: The entire system is powered off and waits for personnel to check. After the check is completed and confirmed, step S404 is triggered.

[0182] In a possible implementation, after executing the above step S407 and before triggering step S404, the output of test abnormality content can be configured to prompt the test personnel to make adjustments, and step S404 is triggered after receiving the trigger signal input by the test personnel indicating that the adjustment is completed.

[0183] In step S408, the test voltage is maintained, and the test voltage before the disconnector under test is opened is recorded. The disconnector under test is then controlled to switch from the closed state to the open state; the voltage and current of the test circuit are monitored, and step S409 is triggered.

[0184] Step S409: Based on at least the voltage, current, the open / closed state of the tested disconnector, and manual monitoring results, use the abnormality verification control logic to determine whether a test abnormality exists. If so, step S407 is triggered. If not, step S410 is triggered.

[0185] In step S410, the high voltage is de-energized, the isolating switch under test is switched to the closed state, and the load capacitor is discharged, and step S411 is triggered.

[0186] In a possible implementation, the residual charge on the load capacitor is discharged through the power frequency test transformer after passing through the isolation switch.

[0187] In step S411, the disconnector under test is switched to the open state, a test voltage is applied, and test control is performed to obtain the first action state parameter, the second action state parameter, and the third action state parameter, thereby triggering step S412.

[0188] Step S412: Based on the first action state parameter, the second action state parameter, and the third state parameter, determine whether the test is normal. If not, step S413 is triggered. If yes, step S414 is triggered.

[0189] In a possible implementation, the abnormality verification control logic automatically performed in step S412 is executed in the same manner as the abnormality verification control logic in step S406 .

[0190] Step S413: The entire system is powered off and waits for personnel to check. After the inspection is completed and confirmed, the pre-test of step S404 is triggered.

[0191] In one possible implementation, there are multiple reasons for test anomalies. Some require maintenance before the test can be continued, while others do not. Therefore, in addition to triggering step S404, step S413 can also trigger step S410 after the operator manually eliminates the cause of the anomaly without requiring maintenance, thereby improving test efficiency. Similarly, if the operator determines that the test has failed and the disconnector under test cannot be repaired within a short period of time, the operator can also trigger the termination of the test.

[0192] Step S414: Generate the test result based on the first action state parameter, the second action state parameter, and the third action state parameter, and add 1 to the number of times the current test control is completed, thereby triggering step S415.

[0193] Step S415: Determine whether the number of times the current test control is completed is not less than a preset threshold. If so, step S416 is triggered; if not, step S410 is triggered.

[0194] Step S416: Output the test results based on the test results of each test.

[0195] In one possible implementation, if the current test control completion count is no less than a preset threshold, a dialog box will pop up indicating that the test control count has been reached. After clicking OK, all power is turned off, and a raw record in Word format is generated. The test results and recorded data are stored in the raw record, which is then saved to the control terminal for easy reference. At the same time, the overcurrent protection on each console is restored to its pre-test state, and a prompt is given to restore the variable frequency test transformer.

[0196] An electronic device is also provided in an embodiment of the present application. Figure 5 , which shows a schematic diagram of the structure of an electronic device suitable for implementing the embodiments of the present application. The electronic device in the embodiments of the present application may include but is not limited to fixed terminals such as laptop computers, PDAs (personal digital assistants), PADs (tablet computers), desktop computers, etc. Figure 5 The electronic device shown is merely an example and should not limit the functions and scope of use of the embodiments of the present application.

[0197] like Figure 5 As shown, the electronic device may include a processing device (e.g., a central processing unit, a graphics processing unit, etc.) 501, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 502 or a program loaded from a storage device 508 into a random access memory (RAM) 503. When the electronic device is powered on, the RAM 503 also stores various programs and data required for the operation of the electronic device. The processing device 501, the ROM 502, and the RAM 503 are connected to each other via a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.

[0198] Typically, the following devices may be connected to the I / O interface 505: an input device 506 including, for example, a touch screen, a touchpad, a keyboard, a mouse, a camera, a microphone, an accelerometer, a gyroscope, etc.; an output device 507 including, for example, a liquid crystal display (LCD), a speaker, a vibrator, etc.; a storage device 508 including, for example, a memory card, a hard disk, etc.; and a communication device 509. The communication device 509 may allow the electronic device to communicate with other devices wirelessly or by wire to exchange data. Although Figure 5The electronic device is shown with various devices, but it should be understood that it is not required to implement or possess all of the devices shown. More or fewer devices may be implemented or possessed instead.

[0199] An embodiment of the present application also provides a computer program product including computer-readable instructions. When the computer-readable instructions are executed on an electronic device, the electronic device implements any one of the three test methods for the isolating switch opening and closing capacitive current test provided in the embodiment of the present application.

[0200] A computer-readable storage medium is also provided in an embodiment of the present application. The storage medium carries one or more computer programs. When the one or more computer programs are executed by an electronic device, the electronic device can implement any one of the three test methods for the isolating switch opening and closing capacitive current test provided in the embodiment of the present application.

[0201] It should also be noted that the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed across multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment. In addition, in the drawings of the device embodiments provided in this application, the connection relationship between the modules indicates that there is a communication connection between them, which can be specifically implemented as one or more communication buses or signal lines.

[0202] Through the description of the above embodiments, those skilled in the art can clearly understand that the present application can be implemented by means of software plus necessary general hardware, and of course can also be implemented by special hardware including application-specific integrated circuits, special CPUs, special memories, special components, etc. In general, all functions performed by computer programs can be easily implemented with corresponding hardware, and the specific hardware structures used to implement the same function can also be diverse, such as analog circuits, digital circuits or special circuits, etc. However, for the present application, software program implementation is a better implementation method in most cases. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a readable storage medium, such as a computer's floppy disk, USB flash drive, mobile hard disk, ROM, RAM, magnetic disk or optical disk, etc., and includes a number of instructions to enable a computer device (which can be a personal computer, training equipment, or network equipment, etc.) to execute the methods described in each embodiment of the present application.

[0203] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware, or any combination thereof. When implemented by software, all or part of the embodiments may be implemented in the form of a computer program product.

[0204] The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, a computer, a training device or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website, a computer, a training device or a data center. The computer-readable storage medium can be any available medium that a computer can store or a data storage device such as a training device, a data center, etc. that includes one or more available media integrations. The available medium can be a magnetic medium, (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state drive (SSD)).

Claims

1. A test device for the third mode of capacitive current test of an isolating switch, characterized in that: include: Power frequency test transformer automatic control console, disconnector automatic control console, measurement system and control terminal, The power frequency test transformer automatic control console, the disconnector automatic control console and the measurement system are all communicatively connected to the control terminal; The power frequency test transformer automatic control console is used to control the power frequency test transformer to perform a first type of test action in response to a first control instruction issued by the control terminal, and send a first action state parameter to the control terminal, where the first action state parameter represents an execution result of the first type of test action; The isolating switch automatic control console is used to control the actuating mechanism of the tested isolating switch and the tested isolating switch to perform a second type of test action in response to a second control instruction issued by the control terminal, and send a second action state parameter to the control terminal, where the second action state parameter represents the execution result of the second type of test action, and the power frequency test transformer and the tested isolating switch are both connected to the test circuit; The measurement system is configured to collect at least a load-side current value of the tested disconnector, a power-side voltage and a load-side voltage of the tested disconnector and / or their waveforms in response to a third control instruction issued by the control terminal, and send the obtained third action state parameter to the control terminal; The control terminal is used to generate the first control instruction, the second control instruction and the third control instruction multiple times based on at least the equipment model, test parameters and preset test control logic, and send the first control instruction to the power frequency test transformer automatic control console, send the second control instruction to the disconnector automatic control console, and send the third control instruction to the measurement system to perform multiple test controls; when each of the test controls is completed without abnormality and the current number of test control completions is not less than a preset threshold, generate test results based at least on the first action state parameter, the second action state parameter and the third action state parameter.

2. The test device of the third mode of the isolating switch opening and closing capacitive current test according to claim 1 is characterized in that: The automatic control console for power frequency test transformer includes: Controller and data acquisition device, The signal input end of the controller is communicatively connected to the control terminal, and the signal output end of the controller is electrically connected to the control end of the power frequency test transformer; The signal input end of the data acquisition device is communicatively connected to the signal output end of the power frequency test transformer, and the signal output end of the data acquisition device is communicatively connected to the control terminal; The controller is used to control the power frequency test transformer to perform a first type of test action in response to the first control instruction; The data acquisition device is used to collect at least the first action state parameters including the button status of the power frequency test transformer automatic control console, the total high-voltage current value output by the transformer, and the door interlock status.

3. The test device of the third mode of the isolating switch opening and closing capacitive current test according to claim 1 is characterized in that: The isolating switch automatic control console includes: Controller and data acquisition device, The signal input end of the controller is communicatively connected to the control terminal, and the signal output end of the controller is electrically connected to the control end of the action mechanism and the control end of the tested isolating switch respectively; The signal input end of the data acquisition device is communicatively connected to the signal output end of the action mechanism and the signal output end of the tested isolating switch, respectively, and the signal output end of the data acquisition device is communicatively connected to the control terminal; The controller is used to control the action mechanism and the tested disconnector to perform a second type of test action in response to the second control instruction; The data acquisition device is used to collect the second action state parameters including the control voltage of the action mechanism and the closing and opening states of the tested disconnector.

4. The test device of the third mode of the isolating switch opening and closing capacitive current test according to any one of claims 1 to 3, characterized in that: The test device also includes: Two sets of photoelectric conversion devices, one end of each photoelectric conversion device is electrically connected to a controller signal input terminal and a data acquisition device signal output terminal of a target automatic control console, and the other end of each photoelectric conversion device is communicatively connected to the control terminal, wherein the target automatic control console is the power frequency test transformer automatic control console or the isolating switch automatic control console; The photoelectric conversion device is used to convert the control instruction sent by the control terminal into an optical signal for transmission, and is also used to convert the target action state parameter sent by the target automatic control console into an optical signal for transmission, and is also used to convert the third action state parameter output by the measurement system into an optical signal for transmission, wherein the target action state parameter is the first action state parameter or the second action state parameter.

5. The test device of the third mode of the isolating switch opening and closing capacitive current test according to claim 4 is characterized in that: The photoelectric conversion device comprises: An electro-optical conversion device, an optical fiber, and a photoelectric conversion device, wherein the electro-optical conversion device is connected to the photoelectric conversion device via the optical fiber; The electro-optical conversion device is used to convert the control instruction or the target action state parameter or the third action state parameter of the electrical signal type into the optical signal, wherein the control instruction is at least one of the first control instruction, the second control instruction and the third control instruction; The photoelectric conversion device is used to convert the optical signal into the control instruction or the target action state parameter or the third action state parameter of the electrical signal type.

6. A control terminal, characterized in that: include: The control terminal in the test device of the third test mode for the opening and closing capacitive current of the disconnector according to any one of claims 1 to 5.

7. A test method for the third mode of capacitive current test of an isolating switch, characterized in that: Applied to the control terminal according to claim 6, the test method of the third mode of the isolating switch opening and closing capacitive current test comprises: Obtaining an equipment model and test parameters, and performing multiple test controls based at least on the equipment model and test parameters to execute the test process of the third mode of the disconnector opening and closing capacitive current test, after each test control is completed without abnormality, generating a test result based at least on the received first action state parameter, second action state parameter, and third action state parameter, and determining whether the number of completions of the current test control is not less than a preset threshold, if so, outputting the test result, if not, executing the next test control, wherein the test control includes: Generate a first control instruction, a second control instruction, and a third control instruction based at least on the equipment model, the test parameters, and the preset test control logic, and send the first control instruction to the power frequency test transformer automatic control console so that the power frequency test transformer automatic control console responds to the first control instruction and controls the power frequency test transformer to perform a first type of test action; send the second control instruction to the disconnector automatic control console so that the disconnector automatic control console controls the actuating mechanism of the tested disconnector and the tested disconnector to perform a second type of test action in response to the second control instruction; and send the third control instruction to the measurement system so that the measurement system collects at least the load-side current value of the tested disconnector, the power-side voltage and the load-side voltage of the tested disconnector, and / or their waveforms; The first action state parameter fed back by the power frequency test transformer automatic control console, the second action state parameter fed back by the disconnector automatic control console, and the third action state parameter fed back by the measurement system are obtained.

8. The test method of the third mode of the isolating switch opening and closing capacitive current test according to claim 7 is characterized in that: The generating of the first control instruction, the second control instruction, and the third control instruction based at least on the device model, the test parameters, and the preset test control logic includes: Based on the state of the tested disconnector and the number of times the current test control is completed, searching the preset test control logic for a current test control logic that is compatible with both the device model and the test parameters; The first control instruction, the second control instruction and the third control instruction required for the test control are generated by using the current test control logic based on the equipment model, the test parameters and the state of the tested disconnector.

9. The test method of the third mode of the isolating switch opening and closing capacitive current test according to claim 8, characterized in that: Before sending the first control instruction to the power frequency test transformer automatic console so that the power frequency test transformer automatic console responds to the first control instruction and controls the power frequency test transformer to perform the first type of test action, sending the second control instruction to the disconnector automatic console so that the disconnector automatic console responds to the second control instruction and controls the actuating mechanism of the disconnector under test and the disconnector under test to perform the second type of test action, and sending the third control instruction to the measurement system so that the measurement system collects at least the load side current value of the disconnector under test, the power side voltage and the load side voltage of the disconnector under test and / or their waveforms, the method further includes: Collecting current status information of the power frequency test transformer automatic control console, the disconnector automatic control console, and the measurement system, and performing equipment status detection based on the test conditions in the current test control logic and the current status information; When the equipment status detection result is normal, the steps of sending the first control instruction to the power frequency test transformer automatic control console so that the power frequency test transformer automatic control console responds to the first control instruction and controls the power frequency test transformer to perform the first type of test action, sending the second control instruction to the disconnector automatic control console so that the disconnector automatic control console responds to the second control instruction and controls the action mechanism of the disconnector under test and the disconnector under test to perform the second type of test action, and sending the third control instruction to the measurement system so that the measurement system collects at least the load side current value of the disconnector under test, the power side voltage of the disconnector under test, the load side voltage and / or their waveforms are performed.

10. The test method of the third mode of the isolating switch opening and closing capacitive current test according to claim 9, characterized in that: The test method of the third mode of the isolating switch opening and closing capacitive current test also includes: For each of the above tests, the following controls were applied: Monitor the first operating parameter of the power frequency test transformer automatic control console, the second operating parameter of the isolating switch automatic control console and the third operating parameter of the measurement system, and when the target operating parameter triggers a preset abnormal condition, send a voltage reduction control signal and a tripping control signal to the power frequency test transformer automatic control console, and disconnect the power frequency transformer input at the lowest voltage of the power frequency test transformer, so that the power frequency test transformer automatic control console controls the power frequency test transformer output voltage to zero; at the same time, send a tripping control signal to the isolating switch automatic control console, disconnect the isolating switch mechanism input, and make the isolating switch mechanism input voltage zero, and the target operating parameter is at least one of the first operating parameter, the second operating parameter and the third operating parameter.

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