Test device and test method for mode three of disconnector opening and closing capacitive current test

Abstract

The application discloses a disconnector opening and closing capacitive current test mode three test device and test method, relates to the field of disconnector detection, and comprises the following steps: a power frequency test transformer automatic control console, a disconnector automatic control console and a measuring system are in communication connection with a control terminal, the power frequency test transformer automatic control console, the disconnector automatic control console and the measuring system respond to control instructions issued by the control terminal, control corresponding equipment to execute test actions, and the control terminal performs multiple test controls based on at least equipment models, test parameters and preset test control logic, and generates test results based on feedback parameters. Based on the power frequency test transformer automatic control console, the disconnector automatic control console and the measuring system responding to the control instructions, the control corresponding equipment to execute the test actions, and the control terminal being configured to perform test control and test result generation, the full-process test is automatically executed, manual intervention is reduced, safety hazards are avoided, and test efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of disconnector testing technology, and in particular to a test device and test method for a third method of disconnector opening and closing capacitive current test. Background Technology

[0002] The capacitive current test for disconnecting switches is a test method for disconnecting switches proposed in GB / T 1985 "High Voltage AC Disconnecting Switches and Grounding Switches". The above-mentioned capacitive current test for disconnecting switches includes three types of tests. Among them, the third type of capacitive current test for disconnecting switches is a test method that verifies the current switching capability of disconnecting switches by simulating the actual working conditions when disconnecting switches interrupt long busbars.

[0003] The existing method for conducting capacitive current tests on disconnecting switches (Method 3) is performed manually. However, because the test simulates the actual operating conditions of the disconnecting switch under a high-voltage load, the high-voltage side of the power frequency test transformer, disconnecting switch, and other equipment used in the test, as well as the test circuit, are all operating at high voltage, while the mechanism side of the disconnecting switch is operating at low voltage (220V or 380V). Furthermore, the existing test requires extensive equipment adjustments by personnel, leading to significant safety hazards and potential omissions in certain adjustments. To avoid these safety hazards or identify omissions, the current technology requires a complete voltage reduction and disconnection of both low and high voltage systems when equipment adjustments are needed, followed by a voltage boosting process after adjustment for testing. This results in reduced testing efficiency. Summary of the Invention

[0004] In view of the above problems, this application provides a test device and test method for a third method of capacitive current test for disconnecting switches, so as to improve test efficiency while avoiding safety hazards. The specific solution is as follows:

[0005] The first aspect of this application provides a test apparatus for a third method of testing capacitive current during the opening and closing of a disconnecting switch, comprising:

[0006] Automatic control console for power frequency test transformers, automatic control console for disconnecting switches, measurement system, and control terminal.

[0007] The automatic control console for the power frequency test transformer, the automatic control console for the disconnecting switch, and the measurement system are all communicatively connected to the control terminal.

[0008] The automatic control console for the power frequency test transformer is used to respond to the first control command issued by the control terminal, control the power frequency test transformer to perform a first type of test action, and send a first action status parameter to the control terminal, wherein the first action status parameter represents the execution result of the first type of test action;

[0009] The automatic control console for the disconnector is used to respond to the second control command issued by the control terminal, control the action mechanism of the disconnector under test and the disconnector under test to perform the second type of test action, and send the second action status parameter to the control terminal. The second action status parameter represents 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.

[0010] The measurement system is used to respond to the third control command issued by the control terminal, and at least collect the load side current value of the test disconnect switch, the power supply side voltage and load side voltage of the test disconnect switch and / or their waveforms, and send the obtained third action status parameters to the control terminal;

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

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

[0013] Controller and data acquisition device,

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

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

[0016] The controller is used to respond to the first control command and control the power frequency test transformer to perform a first type of test action;

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

[0018] In one possible implementation, the automatic control console for the disconnecting switch includes:

[0019] Controller and data acquisition device,

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

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

[0022] The controller is used to respond to the second control command and control the action mechanism and the test isolation switch to perform the second type of test action;

[0023] The data acquisition device is used to acquire the second action state parameters, including the control voltage of the actuating mechanism and the open / closed state of the tested disconnecting switch.

[0024] In one possible implementation, the test apparatus further includes:

[0025] Two sets of photoelectric conversion devices, one end of which is electrically connected to the controller signal input terminal and the data acquisition device signal output terminal of the target control console, and the other end of which is communicatively connected to the control terminal. The target automatic control console is the power frequency test transformer automatic control console or the disconnect switch automatic control console.

[0026] The photoelectric conversion device is used to convert the control commands sent by the control terminal into optical signals for transmission, and is also used to convert the target action status parameters sent by the target automatic control console into optical signals for transmission, and is also used to convert the third action status parameters output by the measurement system into optical signals for transmission, wherein the target action status parameters are either the first action status parameters or the second action status parameters.

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

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

[0031] The second aspect of this application provides a control terminal, including: the control terminal in the test device of the first aspect of this application and any possible implementation of the first aspect of the provided disconnecting switch opening and closing capacitive current test method three.

[0032] The third aspect of this application provides a test method for a third type of capacitive current test for disconnecting switches, applied to a control terminal provided in the second aspect of the application. The test method for the third type of capacitive current test for disconnecting switches includes:

[0033] Obtain the equipment model and test parameters, and perform at least multiple test controls based on the equipment model and test parameters to execute the test procedure of the disconnecting switch opening and closing capacitive current test mode three. After each test control is completed without abnormality, generate a test result based at least on the received first action status parameters, second action status parameters, and third action status parameters, and determine whether the current number of test control completions is not less than a preset threshold. If yes, output the test result; otherwise, execute the next test control. The test control includes:

[0034] Based at least on the equipment model, the test parameters, and the preset test control logic, a first control command, a second control command, and a third control command are generated. The first control command 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 command and controls the power frequency test transformer to perform a first type of test action. The second control command is sent to the disconnect switch automatic control console, so that the disconnect switch automatic control console responds to the second control command and controls the action mechanism of the disconnect switch under test and the disconnect switch under test to perform a second type of test action. The third control command is sent to the measurement system, so that the measurement system at least collects the load side current value of the disconnect switch under test, the power supply side voltage and the load side voltage of the disconnect switch under test, and / or their waveforms.

[0035] The system obtains the first action status parameter fed back by the automatic control console of the power frequency test transformer, the second action status parameter fed back by the automatic control console of the disconnecting switch, and the third action status parameter fed back by the measurement system.

[0036] In one possible implementation, based at least on the equipment model, the test parameters, and the preset test control logic, a first control command, a second control command, and a third control command are generated, including:

[0037] Based on the state of the tested disconnect switch and the current number of test control completions, search the preset test control logic for the current test control logic that is compatible with both the equipment model and the test parameters.

[0038] Based on the equipment model, the test parameters, and the state of the tested disconnect switch, the current test control logic generates the first control command, the second control command, and the third control command required for this test.

[0039] In one possible implementation, before sending the first control command to the power frequency test transformer automatic control console to cause the power frequency test transformer automatic control console to respond to the first control command and control the power frequency test transformer to perform a first type of test action, sending the second control command to the disconnect switch automatic control console to cause the disconnect switch automatic control console to respond to the second control command and control the operating mechanism of the disconnect switch under test and the disconnect switch under test to perform a second type of test action, and sending the third control command to the measurement system to cause the measurement system to at least acquire the load side current value of the disconnect switch under test, the power supply side voltage and the load side voltage of the disconnect switch under test and / or their waveforms, the method further includes:

[0040] The current status information of the power frequency test transformer automatic control console, the disconnect switch automatic control console, and the measurement system is collected, and the equipment status is detected based on the test conditions in the current test control logic and the current status information.

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

[0042] In one possible implementation, the test method for the third type of disconnecting switch opening and closing capacitive current test also includes:

[0043] Controls for each of the aforementioned tests:

[0044] The system monitors the first operating parameter of the automatic control console for the power frequency test transformer, the second operating parameter of the automatic control console for the disconnector switch, and the third operating parameter of the measurement system. When the target operating parameter triggers a preset abnormal condition, it sends a step-down control signal and a tripping control signal to the automatic control console for the power frequency test transformer. At the lowest voltage level of the power frequency test transformer, the system disconnects the input to the power frequency test transformer, causing the automatic control console for the power frequency test transformer to control the output voltage of the power frequency test transformer to zero. Simultaneously, it sends a tripping control signal to the automatic control console for the disconnector switch, disconnecting the input to the disconnector switch mechanism, causing the input voltage of the disconnector switch mechanism to zero. The target operating parameter is at least one of the first operating parameter, the second operating parameter, and the third operating parameter.

[0045] By employing the above technical solution, this application provides a test device and method for a capacitive current test mode three for disconnecting switches. By configuring an automatic control console for the power frequency test transformer to respond to a first control command issued by a control terminal, the device controls the power frequency test transformer to perform a first type of test action and sends first action status parameters to the control terminal. Simultaneously, by configuring an automatic control console for the disconnecting switch to respond to a second control command issued by the control terminal, the device controls the operating mechanism of the disconnecting switch under test and the disconnecting switch under test to perform a second type of test action and sends second action status parameters to the control terminal. Furthermore, by configuring a measurement system to respond to a third control command issued by the control terminal, the device collects at least the load-side current value, the power supply-side voltage, and the load-side voltage and / or their waveforms of the disconnecting switch under test. This achieves automatic control and automatic data acquisition of the power frequency test transformer and the disconnecting switch under test during the test, reducing manual intervention and workload. Compared to existing technologies that require manual operation and parameter reading, this method improves test efficiency and avoids safety hazards. By configuring the control terminal to generate multiple first, second, and third control commands based at least on the equipment model, test parameters, and preset test control logic, and sending the first control command to the automatic control console of the power frequency test transformer, the second control command to the automatic control console of the disconnecting switch, and the third control command to the measurement system, the automated execution of multiple test controls is achieved. Finally, by configuring the control terminal to generate test results based at least on the first, second, and third action state parameters, provided that each test control is completed without abnormalities and the current number of test control completions is not less than a preset threshold, the test results are automatically generated. This achieves automated generation of test results, enabling the automated execution of the test process for the disconnecting switch opening and closing capacitive current test (Method 3) without the need for manual data recording and manual control of test steps, thus improving test efficiency while avoiding safety hazards. Therefore, this application achieves the inventive objective of improving test efficiency while avoiding safety hazards. Attached Figure Description

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

[0047] Figure 1 A structural block diagram of a test device for a third method of capacitive current test for disconnecting switch opening and closing provided in this application;

[0048] Figure 2 A schematic diagram of the test device for a third method of capacitive current test for disconnecting switch provided in this application;

[0049] Figure 3 A schematic diagram of the execution flow of the test method for the third method of capacitive current test for disconnecting switch provided in this application;

[0050] Figure 4 A test control flowchart is provided for this application;

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

[0052] The embodiments of this application are described below with reference to the accompanying drawings. The terminology used in the implementation section of this application is for explaining specific embodiments only and is not intended to limit the scope of this application.

[0053] The embodiments of this application will now be described with reference to the accompanying drawings. Those skilled in the art will recognize that, with technological advancements and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are equally applicable to similar technical problems.

[0054] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms are interchangeable where appropriate; this is merely a way of distinguishing objects with the same attributes in the embodiments of this application. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, so that a process, method, system, product, or apparatus that comprises a series of elements is not necessarily limited to those elements, but may include other elements not explicitly listed or inherent to those processes, methods, products, or apparatuses.

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

[0056] It has been found that for gas-insulated metal-enclosed switchgear and controlgear (GIS) operating at voltages of 550kV and above, the disconnecting switches may generate destructive discharges to ground when switching small capacitive currents, such as when using the disconnecting switch to connect or disconnect an unloaded busbar, or when using the disconnecting switch to connect or disconnect a circuit breaker parallel capacitor. To verify whether the disconnecting switch design can avoid destructive discharges to ground, GB / T 1985 "High Voltage AC Disconnecting Switches and Grounding Switches" proposes three methods for testing the capacitive current switching capabilities of disconnecting switches. Method one involves testing the disconnecting switch to open and close a very short busbar segment (pipe); Method two involves testing the disconnecting switch to open and close a circuit breaker parallel capacitor under 180° out-of-step conditions; and Method three is the capacitive current switching capability test of the disconnecting switch, which is the third method of capacitive current switching test in this scheme. In addition, since air-insulated disconnect switches also need to undergo this test, the number of disconnect switches required for this test is enormous. Therefore, in real-world scenarios, a large number of switches need to be tested using the method described above (method three).

[0057] In existing technologies, because the tests are complex and tedious, even skilled personnel sometimes forget some tasks when they are carried out manually. For example, they may forget to take measures to reduce the impedance of the test transformer in advance. They only realize that they forgot to take measures when the voltage rises above the standard requirements during the test. They can only reduce the voltage and take measures again before starting the test, which wastes time and affects the efficiency of the test.

[0058] In the current testing process, personnel are required to perform tasks such as pressurizing, operating measuring equipment, recording power frequency data, and operating the test disconnect switch. With only two test personnel, these tasks may be overwhelming, especially for newcomers who are not familiar with the testing process.

[0059] Meanwhile, in the existing testing process, the high voltage is restricted by a door interlock (a safety door locking device used to enclose the test area). If personnel suddenly enter the pressurized test area, the door interlock will disengage, cutting off the high voltage and protecting the personnel. However, due to commissioning, the low voltage connected to the tested isolating switch 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. At this time, the power supply to the mechanism may be forgotten, thus creating a safety hazard.

[0060] Finally, in the current testing process, the test disconnector is controlled remotely by manually pressing the open / close button. During the test, due to the breakdown and arcing of the disconnector's contacts, a high-frequency alternating voltage is generated, inducing alternating charges on the grounded casing. Since the grounding system's impedance to high-frequency voltages is greater than its impedance at power frequencies, the induced charge changes at a high frequency, resulting in a continuous flow of charge through the grounding wire. This causes the ground potential to rise and affect surrounding grounding equipment. At this point, the voltage on the grounding wire may enter the disconnector mechanism and travel along the control line to the open / close button, posing a threat to the operator. For safety, the operator needs to hold an insulated rod-like object to operate the switch. Furthermore, all of the above operations are performed manually, leading to reduced testing efficiency. Therefore, the existing testing method has significant safety hazards and low testing efficiency.

[0061] The first aspect of this application provides a test apparatus for a third method of testing capacitive current during the opening and closing of a disconnecting switch, such as... Figure 1 As shown, the test apparatus for the capacitive current test mode three of the disconnecting switch includes:

[0062] The system includes an automatic control console 101 for power frequency test transformers, an automatic control console 102 for disconnecting switches, a measurement system 103, and a control terminal 104.

[0063] The automatic control console 101 for the power frequency test transformer, the automatic control console 102 for the disconnecting switch, and the measurement system 103 are all communicatively connected to the control terminal 104.

[0064] The automatic control console 101 for the power frequency test transformer is used to respond to the first control command issued by the control terminal 104, control the power frequency test transformer to perform a first type of test action, and send a first action status parameter to the control terminal 104. The first action status parameter represents the execution result of the first type of test action.

[0065] The automatic control console 102 for disconnecting switches is used to respond to the second control command issued by the control terminal 104, control the action mechanism of the disconnecting switch under test and the disconnecting switch under test to perform the second type of test action, and send the second action status parameters to the control terminal 104. The second action status parameters characterize the execution result of the second type of test action. The power frequency test transformer and the disconnecting switch under test are both connected to the test circuit.

[0066] The measurement system 103 is used to respond to the third control command issued by the control terminal 104, to at least acquire the load side current value of the test disconnect switch, the power supply side voltage and the load side voltage of the test disconnect switch and / or their waveforms, and send the acquired third action status parameters to the control terminal 104.

[0067] The control terminal 104 is used to generate a first control command, a second control command, and a third control command multiple times based on at least the equipment model, test parameters, and preset test control logic. It sends the first control command to the power frequency test transformer automatic control console 101, the second control command to the disconnect switch automatic control console 102, and the third control command to the measurement system 103 to perform multiple test controls. If each test control is completed without abnormality and the current number of test control completions is not less than a preset threshold, the control terminal 104 generates test results based on at least the first action status parameters, the second action status parameters, and the third action status parameters.

[0068] It should be noted that, in practical applications, the aforementioned power frequency test transformer is used to simulate the power frequency voltage conditions in the power grid under actual operating conditions, providing a stable high-voltage power supply for the test. The selection of this power frequency test transformer can be based on the design parameters of the disconnector under test. This application does not impose excessive restrictions or elaborate on the specific model of the aforementioned power frequency test transformer.

[0069] It should be noted that, in practical applications, the aforementioned automatic control console 101 for power frequency transformers can be a test transformer console used to automatically control the power frequency test transformer and collect relevant parameters. Since existing test transformer consoles require manual operation and parameter reading, this application configures the automatic control console 101 to respond to the first control command issued by the control terminal 104, controlling the power frequency test transformer to perform a first type of test action and sending first action status parameters to the control terminal 104. This achieves automatic control and automatic data acquisition of the power frequency test transformer during the test, eliminating the need for manual intervention, reducing personnel burden, and improving test efficiency.

[0070] It should be noted that, in practical applications, the aforementioned automatic control console 102 for disconnecting switches can be a test control console used to control the actuator of the disconnecting switch under test, thereby controlling the action of the disconnecting switch and automatically collecting the action status parameters of the disconnecting switch and its actuator. This application configures the automatic control console 102 to respond to the second control command issued by the control terminal 104, controlling the actuator of the disconnecting switch under test and the disconnecting switch to perform a second type of test action, and sending the second action status parameters to the control terminal 104. This achieves automatic control and automatic data acquisition of the actuator and the disconnecting switch under test during the test, eliminating the need for manual intervention, reducing personnel burden, and improving test efficiency.

[0071] It should be noted that, in practical applications, the aforementioned measurement system 103 can be a system used to collect the test measurement parameters (i.e., the aforementioned third operating state parameters) specified in the third method of the capacitive current test for disconnecting switches. The types of these test measurement parameters are varied, including but not limited to: the load-side current value of the disconnecting switch under test, the power supply-side voltage and load-side voltage of the disconnecting switch under test, and / or their waveforms. The aforementioned measurement system 103 can include various types of measuring devices, including but not limited to: voltage dividers, current transformers (CTs), Rogowski coils, etc.

[0072] It should be noted that, in practical applications, the aforementioned test circuit is used to connect the aforementioned power frequency test transformer, the disconnector under test, the measurement system 103, and the load capacitor to form a high-voltage power network. The load capacitor is used to simulate capacitive loads (such as unloaded busbars, parallel capacitor banks, long-distance transmission lines, etc.) operating under real-world conditions, providing a controllable capacitive current environment for the test. In addition to connecting the aforementioned power frequency test transformer, the disconnector under test, and the load capacitor, the test circuit can also connect other devices or components used to simulate real-world operating conditions, such as protection devices. These protection devices can be devices such as current-limiting resistors and protective ball gaps, used to limit fault voltage or fault current, or even disconnect the test circuit, when an abnormality occurs in 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 action is the action performed by the power frequency test transformer as the main body during the test, including but not limited to: closing, opening, stepping up and down, stabilizing, voltage regulation and compensation, protection and overload response of the power frequency test transformer's voltage regulator and its front and rear stages.

[0074] It should be noted that, in practical application scenarios, the aforementioned first action status parameter refers to the operating status parameter (i.e., execution result) of the power frequency test transformer collected by the power frequency test transformer automatic control console 101 during and / or after the execution of the first type of test action. This first operating status parameter characterizes the execution result of the first type of test action. The types of the aforementioned first action status parameter include, but are not limited to: the high-voltage current value on the power frequency test transformer side, the measured winding voltage value of the power frequency test transformer, the total high-voltage current value output by the transformer, the button status of the power frequency test transformer automatic control console 101, and door interlock signals, 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 test disconnector as the executing entity during the test, including: supplying power to the test disconnector's operating mechanism, cutting off power, increasing voltage, decreasing voltage, opening operation (breaking capacitive current) and closing operation (closing capacitive current).

[0076] It should be noted that, in practical application scenarios, the aforementioned second action status parameter refers to the operating status parameter (i.e., execution result) of the disconnector under test, collected by the automatic control console 102 during and / or after the disconnector under test executes the second type of test action. This second operating status parameter characterizes the execution result of the second type of test action. The types of the aforementioned second operating status parameter include, but are not limited to: the operating voltage of the control mechanism that controls the opening or closing of the disconnector under test, and the opening and closing status of the disconnector under test.

[0077] It should be noted that in practical applications, the aforementioned actuating mechanism of the disconnect switch under test is connected to low voltage and is a drive device used to drive the disconnect switch under test to perform the second type of test action. There are various types of such actuating mechanisms, including but not limited to: spring energy storage mechanisms, hydraulic / starting drive structures, and servo motor mechanisms. This application, by configuring the aforementioned actuating mechanism of the disconnect switch under test, achieves automatic control of the disconnect switch, eliminating the need for manual opening and closing of the disconnect switch during the test compared to existing technologies, thereby avoiding safety hazards.

[0078] It should be noted that, in practical application scenarios, the aforementioned control terminal 104 can be a terminal device with pre-defined test control logic deployed. The types of the aforementioned control terminal 104 include, but are not limited to, fixed terminals such as laptops, PDAs (Personal Digital Assistants), PADs (Tablet PCs), and desktop computers.

[0079] It should be noted that, in practical application scenarios, the aforementioned preset test control logic can be a control logic developed based on the third method of capacitive current test for disconnecting switches, used to control each test step of the third method of capacitive current test for disconnecting switches and the inspection steps before and after each test step. Those skilled in the art will understand that the test steps of the third method of capacitive current test for disconnecting switches in the aforementioned high-voltage AC disconnecting switch and grounding switch standard GB / T 1985 include the following steps A1 to A5.

[0080] Step A1, Preparation: Adjust the protection devices and test equipment into place.

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

[0082] Step A3, Closing and Opening Operations: This includes closing and opening operations. The closing operation involves applying voltage to the test disconnector to the test voltage; controlling the disconnector to close; recording the current values ​​before and after closing; and recording typical current and voltage waveforms during the closing process. The opening operation involves controlling the disconnector to open after the closing operation; recording the voltage values ​​before and after opening; recording typical current and voltage waveforms during the opening process; and maintaining this position for a period of time. After the holding period, the test voltage is reduced to its minimum, the power frequency test transformer input is disconnected, and the load capacitor is discharged by controlling the disconnector to close. After discharge, the disconnector is restored to its state before the closing test. One closing and opening operation counts as one test.

[0083] Step A4: Repeat the opening and closing operation of step A3 multiple times and collect the test parameters as in A3: Perform the opening and closing operation a specified number of times as required by the standard (e.g., open and close 3 times or more consecutively).

[0084] Step A5: Collect the test parameters for each opening and closing operation.

[0085] It should be noted that this application configures the control terminal 104 to generate multiple first, second, and third control commands based at least on the equipment model, test parameters, and preset test control logic. The first control command is sent to the power frequency test transformer automatic control console 101, the second control command to the disconnector automatic control console 102, and the third control command to the measurement system 103, thus achieving automated execution of multiple test controls. Furthermore, the control terminal 104 is configured to generate test results based at least on the first, second, and third action status parameters, provided that each test control is completed without abnormalities and the current number of test control completions is not less than a preset threshold. This achieves automated generation of test results. Compared to existing technologies, this application automates the execution of the disconnector opening and closing capacitive current test mode three test process without requiring manual recording or operation, achieving the invention's objective of improving test efficiency while avoiding safety hazards.

[0086] This application configures an automatic control console for the power frequency test transformer to respond to a first control command issued by a control terminal, controlling the power frequency test transformer to perform a first type of test action and sending first action status parameters to the control terminal. It also configures an automatic control console for the disconnector switch to respond to a second control command issued by the control terminal, controlling the operating mechanism of the disconnector switch under test and the disconnector switch itself to perform a second type of test action and sending second action status parameters to the control terminal. Simultaneously, it configures a measurement system to respond to a third control command issued by the control terminal, at least acquiring the load-side current value, the power supply-side voltage, and the load-side voltage and / or their waveforms of the disconnector switch under test. This achieves automatic control and automatic data acquisition of the power frequency test transformer and the disconnector switch under test during the test, reducing manual intervention and workload. Compared to existing technologies that require manual operation and parameter reading, this improves test efficiency and avoids potential safety hazards. By configuring the control terminal to generate multiple first, second, and third control commands based at least on the equipment model, test parameters, and preset test control logic, and sending the first control command to the automatic control console of the power frequency test transformer, the second control command to the automatic control console of the disconnecting switch, and the third control command to the measurement system, the automated execution of multiple test controls is achieved. Finally, by configuring the control terminal to generate test results based at least on the first, second, and third action state parameters, provided that each test control is completed without abnormalities and the current number of test control completions is not less than a preset threshold, the test results are automatically generated. This achieves automated generation of test results, enabling the automated execution of the test process for the disconnecting switch opening and closing capacitive current test (Method 3) without the need for manual data recording and manual control of test steps, thus improving test efficiency while avoiding safety hazards. Therefore, this application achieves the inventive objective of improving test efficiency while avoiding safety hazards.

[0087] In one possible implementation, the aforementioned automatic control console 101 for power frequency test transformers includes:

[0088] Controller and data acquisition device,

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

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

[0091] The controller is used to respond to the first control command and control the power frequency test transformer to perform the first type of test action;

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

[0093] It should be noted that, in practical applications, the controller in the aforementioned automatic control console 101 for the power frequency test transformer can be a programmable logic controller (PLC). This application configures the signal input terminal of the controller to communicate with the control terminal 104, and configures the signal output terminal of the controller to be electrically connected to the control terminal of the power frequency test transformer. This enables the controller to respond to a first control command, controlling the power frequency test transformer to perform a first type of test action, thereby achieving automatic adjustment of the power frequency test transformer during the test.

[0094] In one possible implementation, the data acquisition device in the aforementioned automatic control console 101 for power frequency test transformers can be a device for acquiring and processing the analog and digital electrical signals output from the signal output terminals of the automatic control console and the power frequency test transformer. Specifically, the data acquisition device can be used to acquire the electrical signals output from the signal output terminals of the power frequency test transformer, convert and filter the electrical signals, and then send them to the control terminal.

[0095] In one possible implementation, to facilitate the test personnel's observation of whether the power frequency test transformer correctly executes the first control command, the aforementioned power frequency test transformer automatic control console 101 is configured with physical buttons and display devices linked to the controller. These physical buttons and display devices can also be configured such that: in response to the first control command, the power frequency test transformer automatic control console 101 controls the power frequency test transformer to execute a first type of test action, controls the linked physical buttons to perform actions, and displays the first action status parameters through the display devices, so that the test personnel can review the action status of the physical buttons and the first action status parameters displayed by the display devices, further improving the reliability of the test process.

[0096] In one possible implementation, the control terminal of the aforementioned power frequency test transformer is the control signal input terminal of the voltage regulator of the power frequency test transformer. The types of voltage regulators mentioned above include, but are not limited to, autotransformers, induction regulators, and electronic regulators.

[0097] In one possible implementation, the signal output terminal of the aforementioned power frequency test transformer can be the signal output terminal of the device that outputs the first operating state parameters of the power frequency test transformer.

[0098] In one possible implementation, the signal input terminal of the aforementioned data acquisition device, in addition to communicating with the signal output terminal of the power frequency test transformer automatic control console and the power frequency test transformer, can also communicate with other equipment within the test site. For example, to prevent personnel from accidentally entering the test site, isolation doors are used to separate the test site from the personnel observation area. These isolation doors are equipped with door interlocks, and the signal output terminal of these door interlocks is connected not only to the circuit breaker closing / opening control device in the downstream switchgear of the power frequency test transformer automatic control console, but also electrically to the signal input terminal of the data acquisition device. During the test, all isolation doors are closed, and the door interlocks close to isolate the test site from the personnel observation area. At this time, the door interlocks send a high-level signal to the signal input terminal of the data acquisition device. Upon detecting the high-level signal, the control terminal sends a first control command to the power frequency test transformer automatic control console 101 to start the test, and the power frequency test transformer begins to increase its voltage. If any isolation door is opened, the door interlocks will switch from the closed state to the open state, at which point the door interlocks will send a low-level signal to the signal input terminal of the data acquisition device. When the control terminal detects a low-level signal, it will not conduct the test and will display a warning signal indicating that the door interlock is not closed, reminding the test personnel to close all isolation doors. This avoids the situation where some test personnel cannot apply voltage when all isolation doors are not closed, thus saving time in troubleshooting and improving test efficiency.

[0099] In one possible implementation, the aforementioned automatic control console 102 for disconnecting switches includes:

[0100] Controller and data acquisition device,

[0101] The controller's signal input terminal is communicatively connected to the control terminal, and the controller's signal output terminal is electrically connected to the control terminal of the actuating mechanism and the control terminal of the tested isolating switch, respectively.

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

[0103] The controller is used to respond to a second control command to control the action mechanism and the test disconnect switch to perform a second type of test action;

[0104] The data acquisition device is used to acquire second operating status parameters, including the control voltage of the actuating mechanism and the open state of the tested disconnecting switch.

[0105] It should be noted that, in practical applications, the controller in the aforementioned automatic control console 102 for disconnecting switches can be a programmable logic controller (PLC). This application configures the signal input terminals of the controller to communicate with a control terminal, and configures the signal output terminals of the controller to communicate with the signal output terminals of the actuating mechanism and the disconnecting switch under test, respectively. This allows the controller to respond to a second control command, controlling the actuating mechanism and the disconnecting switch under test to execute a second type of test action, thereby achieving automatic adjustment of the open / closed state of the disconnecting switch under test during the test.

[0106] It should be noted that, in practical applications, the signal input terminal of the aforementioned data acquisition device can also be communicatively connected to the signal output terminal of the aforementioned automatic control console 102 for disconnecting switches. The signal output terminal of the disconnecting switch under test can be the terminal of the closing / opening status feedback line of the aforementioned actuating mechanism. After the low-voltage actuating mechanism drives the disconnecting switch under test to perform the second type of test action, this terminal will output an analog electrical signal indicating whether the current state is open or closed. The signal output terminal of the automatic control console 102 for disconnecting switches is the relay control terminal and the voltage regulator output terminal. After the relay or voltage regulator of the automatic control console 102 for disconnecting switches performs the second type of test action, the voltage at the relay control terminal is an electrical signal indicating whether the automatic control console is supplying power to the actuating mechanism of the disconnecting switch under test, and the voltage regulator output terminal represents the magnitude of the supply voltage.

[0107] In one possible implementation, the data acquisition device in the aforementioned disconnector automatic control console 102 can also be a device for acquiring and processing signals output by the tested disconnector, the actuating mechanism, and the disconnector automatic control console 102. Specifically, the data acquisition device can be used to acquire analog electrical signals output by the tested disconnector and the disconnector automatic control console 102, convert and filter the analog electrical signals, and send the converted analog electrical signals to the control terminal.

[0108] In one possible implementation, to facilitate the test personnel's observation of whether the tested disconnect switch correctly executes the second control command, the physical buttons and display devices linked to the controller configured in the aforementioned disconnect switch automatic control console 102 can also be configured such that: in response to the second control command, the disconnect switch automatic control console 102 controls the action mechanism of the tested disconnect switch or the tested disconnect switch executes the second type of test action, controls the linked physical buttons to perform actions, and displays the second action status parameters through the display device of the control terminal, so that the test personnel can review the action status of the physical buttons and the second action status parameters displayed on the display device, further improving the reliability of the test process.

[0109] In one possible implementation, the test apparatus for the third method of disconnecting switch opening and closing capacitive current test provided by the first aspect of this application and any possible implementation thereof further includes:

[0110] Two sets of photoelectric conversion devices are provided. One end of the photoelectric conversion device is electrically connected to the controller signal input terminal and the data acquisition device signal output terminal of the target automatic control console. The other end of the photoelectric conversion device is communicatively connected to the control terminal. The target automatic control console is an automatic control console for power frequency test transformers or an automatic control console for disconnecting switches.

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

[0112] It should be noted that in practical applications, existing technologies typically transmit electrical signals via cables to achieve communication between the target control console and the control terminal. If the cable shielding layer experiences high-frequency voltage during the test, it can easily cause safety accidents. Therefore, this application configures two sets of photoelectric conversion devices to convert control commands sent by the control terminal into optical signals for transmission. These devices also convert target action status parameters sent by the target automatic control console into optical signals for transmission, and further convert the third action status parameters output by the measurement system into optical signals for transmission. This avoids the risk of high-frequency voltage in the cable shielding layer during the test causing injury to personnel or damage to electronic equipment, thus preventing safety hazards.

[0113] In one possible implementation, the photoelectric conversion device is also used to convert the target control command output by the control terminal into an optical signal for transmission, wherein the target control command is a first control command or a second control command.

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

[0115] Electro-optical conversion device, optical fiber and photoelectric conversion device, the electro-optical conversion device is connected to the photoelectric conversion device through optical fiber;

[0116] The electro-optical conversion device is used to convert control commands or target action state parameters or third action state parameters of electrical signal type into optical signals, wherein the control command is at least one of a first control command, a second control command, and a third control command;

[0117] The photoelectric conversion device is used to convert optical signals into control commands, target action status parameters, or third action status parameters in the form of electrical signals.

[0118] It should be noted that in practical applications, significant electromagnetic interference is generated during the capacitive current test of the disconnecting switch (Method 3). Therefore, this application utilizes a photoelectric conversion device, including an electro-optical conversion device and a photoelectric conversion device connected via optical fiber, to improve data transmission accuracy by leveraging the anti-interference properties of optical signals compared to electrical signals. Furthermore, since analog electrical signals are significantly affected by interference during transmission, the resulting distortion is directly superimposed on the control quantity, affecting the accuracy of subsequent first or second control commands. Therefore, this application uses an electro-optical conversion device to convert analog electrical signal-type action state parameters into optical signals, and a photoelectric conversion device to convert the optical signals into digital electrical signal-type action state parameters. This utilizes the characteristic that errors in digital electrical signals can be completely eliminated through error correction mechanisms, reducing the impact of interference during transmission and improving the generation accuracy of the first, second, or third control commands, thereby enhancing the test accuracy.

[0119] In one possible implementation, during the capacitive current test of the disconnecting switch (mode three), the first, second, and third control commands can be issued simultaneously or sequentially. Therefore, to improve the accuracy of the control sequence of the first, second, and third control commands, the aforementioned photoelectric conversion device can be indirectly connected to the control terminal via a router, so as to accurately adjust the issuance sequence of the first, second, and third control commands using the router.

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

[0121] In one possible implementation, since the instantaneous arc morphology and abnormal behavior generated by the tested disconnector during the execution of the second type of test action are important clues for determining the success or failure of the test, the test device for the third method of disconnector opening and closing capacitive current test provided in this application can also be configured with image acquisition devices (such as infrared cameras, camera assemblies with image capture functions, or high-speed cameras) to measure or acquire the aforementioned test parameters or phenomena. Furthermore, the image acquisition device can be connected to the test device for the third method of disconnector opening and closing capacitive current test via a router, either through its built-in control unit or after modification. Utilizing the characteristics of routers—which have multiple ports for easy expansion and can form networks with other routers—the test device for the third method of disconnector opening and closing capacitive current test can easily connect to multiple image acquisition devices or additional measuring devices.

[0122] To facilitate understanding of the test apparatus for the third method of capacitive current test of disconnecting switch opening and closing provided in this application, an example of a possible implementation of this application is described below:

[0123] like Figure 2 The diagram shows a structural schematic of a test apparatus for a third type of capacitive current test of a disconnecting switch. This test apparatus for the third type of capacitive current test of a disconnecting switch includes: an automatic control console 21 for a power frequency test transformer, an automatic control console 22 for the disconnecting switch, a photoelectric conversion device 23, a router 24, a measurement system 25, a storage medium 26, other management devices 27, and a control terminal 28. The automatic control console 21 for the power frequency test transformer includes a controller 211 and a data acquisition device 212. The controller 211 controls the power frequency test transformer to perform first-type test actions, including transformer opening and closing, transformer voltage step-up and step-down, and overcurrent protection adjustment. The data acquisition device 212 collects first-type action status parameters, including the output voltage and current of the power frequency test transformer, the button status of the control console, and the door interlock status. The automatic control console 22 for the disconnector switch includes a controller 221 and a data acquisition device 222. The controller 221 controls the operating mechanism of the disconnector switch under test and the disconnector switch itself, executing second control commands including closing and opening the mechanism power supply, stepping up and down the mechanism power supply, and closing and opening the disconnector switch. The data acquisition device 222 collects second operating status parameters including the low-voltage operating mechanism power supply voltage, the closing and opening status of the disconnector switch under test, and the button status of the automatic control console 22 for the disconnector switch. 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 terminal of controller 211 and the signal output terminal of 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 router 24. The signal input terminal of controller 221 and the signal output terminal of 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 router 24. Measurement system 25, storage medium 24, and other management devices 27 are all communicatively connected to router 24. Router 24 is communicatively connected to control terminal 28. The other management system 27 can be its superior laboratory management system.

[0125] A second aspect of this application provides a control terminal, including: the control terminal in the test apparatus of the first aspect of this application and any possible implementation of the first aspect of the provided disconnecting switch opening and closing capacitive current test method three.

[0126] The third aspect of this application provides a test method for a third type of capacitive current test for disconnecting switches, applied to a control terminal as provided in the second aspect of this application. The test method for the third type of capacitive current test for disconnecting switches includes:

[0127] Obtain the equipment model and test parameters, and perform at least multiple test controls based on the equipment model and test parameters to execute the test procedure of the disconnecting switch opening and closing capacitive current test mode three. After each test control is completed without abnormality, generate test results based at least on the received first action status parameters, second action status parameters, and third action status parameters, and determine whether the current number of test control completions is not less than a preset threshold. If yes, output the test result; otherwise, execute the next test control. The test control includes:

[0128] Based at least on the equipment model, test parameters, and preset test control logic, a first control command, a second control command, and a third control command are generated. The first control command is sent to the automatic control console of the power frequency test transformer so that the automatic control console of the power frequency test transformer responds to the first control command and controls the power frequency test transformer to perform a first type of test action. The second control command is sent to the automatic control console of the disconnecting switch so that the automatic control console of the disconnecting switch responds to the second control command and controls the action mechanism of the disconnecting switch under test and the disconnecting switch under test to perform a second type of test action. The third control command is sent to the measurement system so that the measurement system at least collects the load side current value of the disconnecting switch under test, the power supply side voltage and the load side voltage of the disconnecting switch under test, and / or their waveforms.

[0129] The system obtains the first action status parameters fed back by the automatic control console of the power frequency test transformer, the second action status parameters fed back by the automatic control console of the disconnecting switch, and the third action status parameters fed back by the measurement system.

[0130] It should be noted that, in practical application scenarios, this application configures multiple test controls based on at least the equipment model and test parameters to execute the test process of the third method for capacitive current test of disconnecting switch opening and closing. After each test control is completed without any abnormalities, it determines whether the current number of test control completions is not less than a preset threshold. If so, the test result is output based on at least the received first action status parameters, second action status parameters, and third action status parameters. If not, the next test control is executed, thus realizing the automatic execution of the entire process of capacitive current test of disconnecting switch opening and closing, and improving test efficiency. During each test control process, based on at least the equipment model, test parameters, and preset test control logic, a first control command, a second control command, and a third control command are generated. The first control command is sent to the automatic control console of the power frequency test transformer, causing the automatic control console to respond and control the power frequency test transformer to perform a first type of test action. The second control command is sent to the automatic control console of the disconnector switch, causing the automatic control console to respond and control the operating mechanism of the disconnector switch under test to perform a second type of test action. The third control command is sent to the measurement system, causing the measurement system to at least acquire the load-side current value, the power supply-side voltage, and the load-side voltage of the disconnector switch under test, and / or their waveforms. This eliminates the need for manual equipment operation and data acquisition during the test, avoiding safety hazards, reducing personnel burden, and improving test efficiency.

[0131] It should be noted that in practical applications, to further improve testing efficiency and avoid time-consuming and laborious repetitive work caused by unverified test parameters, after obtaining the equipment model and test parameters, a load capacitor configuration scheme adapted to the equipment model and test parameters can be output through table lookup and calculation, along with suggestions on whether a voltage rise suppression circuit is needed. This allows designers to adjust the test circuit once and for all based on the output and test parameters, thereby improving testing efficiency while avoiding repetitive work. The aforementioned voltage rise suppression circuit is used to suppress the significant voltage increase on the isolating switch side caused by resonance when the isolating switch is closed to connect the capacitive load, compared to when the isolating switch is open.

[0132] In one possible implementation, to further avoid test failure or equipment damage due to omissions by test personnel leading to missing configurations in the test circuit, the third aspect of this application provides a test method for the capacitive current test mode three of disconnecting switch opening and closing, which may further include the following steps before test control:

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

[0134] In one possible implementation, the test parameters in step B1 above are parameters required to assist the preset test control logic in generating the first control command, the second control command, and the third control command. For example, the test number (an identifier used to distinguish the test process and the test result), the atmospheric conditions of the test site, the test voltage, the test current, the number of tests, the test interval time, and the previously measured closing and opening time of the disconnecting switch under test.

[0135] In one possible implementation, if the current test has already been performed (i.e., the same equipment and test conditions have been used), then step B1 can receive the test number of the previously performed test, retrieve other historical parameters (excluding atmospheric conditions of the test site and other parameters unrelated to the test equipment), and receive the current atmospheric conditions of the test site. Based on the test number, other historical parameters, and the current atmospheric conditions of the test site, the test parameters for this test can be set, and step B2 can be skipped, triggering step B3.

[0136] Step B2 involves receiving the equipment parameters of the testing equipment and measurement system, and obtaining auxiliary parameters by looking up a table based on the testing equipment model, equipment parameters, and testing parameters. This triggers step B3. If these parameters are unknown, you can skip this step and directly trigger step B3.

[0137] In one possible implementation, the auxiliary parameters in step B2 above include: a load capacitance configuration method that is compatible with the equipment model and test parameters, a prompt message indicating whether a voltage rise suppression circuit is needed, and suppression circuit configuration parameters when a voltage rise suppression circuit is needed.

[0138] 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 yes, then trigger step B4. If no, then trigger step B5.

[0139] Step B4 outputs a message indicating that the experiment can begin.

[0140] Step B5 outputs a message indicating an error, and triggers step B1.

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

[0142] In one possible implementation, the aforementioned 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 has been adjusted, whether the power frequency test transformer is properly connected, whether the corresponding test configuration parameters of the equipment have been configured, whether the power supply to the disconnect switch cabinet is connected, whether the disconnect switch of the power frequency test transformer is closed, whether the test device for the capacitive current test mode three of the disconnect switch is properly connected, whether the door interlock is intact, whether the power supply to the disconnect switch mechanism is properly connected, and whether the transformer overcurrent protection has been adjusted, etc. This application, by configuring based on the preset verification logic and the parameters obtained in steps B1 and B2 above, determines whether the status of each piece of equipment participating in the test meets the corresponding verification conditions in the preset verification logic, avoiding the omission of relevant configurations in the test circuit due to omissions by test personnel, thus avoiding repetition 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-testing, such as whether the test circuit is complete, this application can also output verification prompts for relevant items through the configuration control terminal, so as to prompt the test personnel to manually check and confirm the verification prompts to obtain the verification results.

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

[0145] In one possible implementation, to facilitate subsequent repeated testing, the aforementioned equipment model, test parameters, and test configuration parameters, after verification and import, can be associated with the test commission number and stored in the control terminal for repeated use in subsequent tests, thereby improving testing efficiency.

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

[0147] It should be noted that, in practical application scenarios, there are multiple implementation methods for the test method of the third aspect of this application for the capacitive current test of the disconnecting switch. One such method is provided here as an example, including:

[0148] like Figure 3 The diagram shows the execution flow of a test method for a third type of capacitive current test for disconnecting switches, including the following steps S301 to S302.

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

[0150] Step S302: Based on the equipment model and test parameters, auxiliary parameters are output through table lookup and calculation. These auxiliary parameters include: a load capacitor configuration method compatible with both the equipment model and test parameters; a prompt indicating whether a voltage rise suppression circuit is required; and the suppression circuit configuration parameters when a voltage rise suppression circuit is required. Step S303 is then triggered.

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

[0152] Step S304: Based on the preset verification logic, verify the status of each device according to the test configuration parameters; and determine whether the status of each device has passed the verification. If yes, then trigger step S305; otherwise, trigger step S303.

[0153] Step S305: Based on the current number of test control completions and test configuration parameters, perform test control to execute the test procedure of the disconnecting switch opening and closing capacitive current test mode three, and receive the first action status parameters, the second action status parameters, and the third action status parameters. Then trigger step S306.

[0154] Step S306: Determine if the experiment is normal. If yes, trigger step S307. If no, trigger step S309.

[0155] Step S307: Determine whether the current number of test control completions is not less than a preset threshold. If yes, trigger step S308. If no, trigger step S310.

[0156] Step S308: Disconnect the power supply and output the test results based on at least the first action state parameter, the second action state parameter, and the third action state parameter.

[0157] Step S309: Power off and prompt for manual verification.

[0158] Step S310: Increment the current number of test control completions by 1. Then trigger step S305.

[0159] In one possible implementation, the above-mentioned first control command, second control command, and third control command are generated based at least on the equipment model, test parameters, and preset test control logic, including:

[0160] Based on the state of the tested disconnect switch and the current number of test control completions, search for the current test control logic that is compatible with the equipment model and test parameters from the preset test control logic;

[0161] Based on the equipment model, test parameters, and the status of the tested disconnect switch, the current test control logic generates the first, second, and third control commands required for this test.

[0162] It should be noted that in practical applications, the preset test control logic includes the control methods 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, and different number of tests and test parameters result in different voltages applied by the power frequency transformer automatic control console and different measured currents. The specific control flow for each test is not significantly different.

[0163] In one possible implementation, before sending a first control command to the automatic control console of the power frequency test transformer to cause the automatic control console of the power frequency test transformer to respond to the first control command and control the power frequency test transformer to perform a first type of test action, sending a second control command to the automatic control console of the disconnector switch to cause the automatic control console of the disconnector switch to respond to the second control command and control the operating mechanism of the disconnector switch under test and the disconnector switch under test to perform a second type of test action, and sending a third control command to the measurement system to cause the measurement system to at least acquire the load side current value of the disconnector switch under test, the power supply side voltage and the load side voltage of the disconnector switch under test and / or their waveforms, the method further includes:

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

[0165] If the equipment status detection result is normal, the system executes the following steps: sending a first control command to the automatic control console of the power frequency test transformer, so that the automatic control console of the power frequency test transformer responds to the first control command and controls the power frequency test transformer to perform a first type of test action; sending a second control command to the automatic control console of the disconnector switch, so that the automatic control console of the disconnector switch responds to the second control command and controls the action mechanism of the disconnector switch under test and the disconnector switch under test to perform a second type of test action; and sending a third control command to the measurement system, so that the measurement system at least collects the load side current value of the disconnector switch under test, the power supply side voltage and the load side voltage of the disconnector switch 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. Based on the test conditions in the current test control logic and the current status information, it performs equipment status detection. If the equipment status detection result is normal, it executes test control, avoiding the risk of equipment damage due to damage to the tested disconnector or other equipment failures, thus improving the reliability of the test. At the same time, it does not count abnormal test times as normal test times, thus improving the accuracy and rigor of the test results.

[0167] In one possible implementation, the test method for the third method of disconnecting switch opening and closing capacitive current test also includes:

[0168] Controls for each test:

[0169] The system monitors the first operating parameters of the automatic control console for the power frequency test transformer, the second operating parameters of the automatic control console for the disconnecting switch, and the third operating parameters of the measurement system. When the target operating parameters trigger preset abnormal conditions, the system sends a step-down control signal and a tripping control signal to the automatic control console for the power frequency test transformer. The system also disconnects the power frequency transformer input at the lowest voltage of the power frequency test transformer so that the automatic control console for the power frequency test transformer controls the output voltage of the power frequency test transformer to be zero. The target operating parameter is at least one of the first, second, and third operating parameters.

[0170] In one possible implementation, the aforementioned preset abnormal condition can be the value of the target operating parameter when a safety hazard is likely to occur. For example, the first operating parameter of the automatic control console for the power frequency test transformer is set to the door interlock state, which should always remain at a high level during operation (indicating that the isolation door is closed and no personnel are present). If the door interlock state is detected to change from high to low level during operation, it indicates that the isolation door is open and personnel are suspected to have entered the site. At this time, although the high voltage is disconnected due to the door interlock being broken, the operating mechanism of the tested disconnector switch is still energized. To prevent personnel from being electrocuted when inspecting the tested disconnector switch and its operating mechanism, the automatic control console for the disconnector switch needs to send a trip control signal to disconnect the voltage output to the tested disconnector switch mechanism. This application avoids safety hazards and improves test safety by configuring the automatic control console for the disconnector switch to send a trip control signal when the target operating parameter triggers the preset abnormal condition, thereby disconnecting the voltage output to the tested disconnector switch mechanism.

[0171] To facilitate understanding of the process of multiple test control in the test method of the third aspect of this application and any possible implementation of the capacitive current test for disconnecting switch opening and closing provided by this application, it is hereby described in conjunction with one possible implementation of this application:

[0172] like Figure 4 The diagram shown is a test control flowchart for a test method of capacitive current test mode three for disconnecting switch opening and closing. The specific operation steps are as follows:

[0173] Step S401: Start the test, perform status detection of the measuring equipment, and adjust the tested disconnector switch to the closed state. Then trigger step S402.

[0174] In step S402, a voltage is applied to the test disconnector to the test voltage, and the voltage of the test disconnector is measured by various measuring devices in the measurement system. Steady-state load current data and waveforms are collected. Step S403 is then triggered.

[0175] Step S403: Determine whether the steady-state load current data and waveforms of each measuring device meet their respective design requirements. If yes, trigger step S404; otherwise, trigger step S405.

[0176] Step S404: Record the steady-state load current data and waveforms of each measuring device, conduct a pre-test, adjust the state of the disconnector under test to the open state, apply a test voltage to approximately half of the rated test voltage, control the disconnector under test to switch from the open state to the closed state, and monitor the voltage and current of the test circuit. Then, trigger step S406.

[0177] Step S405: Power off the entire system. This triggers step S401.

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

[0179] Step S406: Based at least on voltage, current, the open / closed state of the tested isolating switch, and manual monitoring results, use the anomaly verification control logic to determine if there is a test anomaly. If yes, then trigger step S407. If no, then trigger step S408.

[0180] It should be noted that, in practical application scenarios, the abnormal verification control logic that can be automatically performed in step S406 above may include: if a discharge occurs during the test, or if no closing feedback signal is received after a period of time exceeding the closing time, or if the voltage holding time is insufficient after closing, or if the voltage rise exceeds the requirements after closing, or if a dialog box appears after closing to interact with the test personnel and learn that the test is abnormal, then the test is considered to be abnormal.

[0181] Step S407: Power off the entire system and wait for personnel to inspect. After the inspection is completed and confirmed, step S404 is triggered.

[0182] In one possible implementation, after performing step S407 above and before triggering step S404, the test exception content can be configured to prompt the test personnel to make adjustments, and step S404 is triggered after receiving the trigger signal from the test personnel indicating that the adjustment is complete.

[0183] Step S408: Maintain the test voltage, record the test voltage of the tested disconnector before it opens, and then control the tested disconnector to switch from the closed state to the open state; monitor the voltage and current of the test circuit. Then trigger step S409.

[0184] Step S409: Based at least on voltage, current, the open / closed state of the tested isolating switch, and manual monitoring results, use the anomaly verification control logic to determine whether there is a test anomaly. If yes, then trigger step S407. If no, then trigger step S410.

[0185] In step S410, the high voltage is de-energized, the tested isolating switch is switched to the closed position, and the load capacitor is discharged. This triggers step S411.

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

[0187] In step S411, the tested disconnector switch is switched to the open state, a test voltage is applied, test control is performed, and the first action state parameters, second action state parameters, and third state parameters for this test are obtained. Then step S412 is triggered.

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

[0189] In one possible implementation, the exception verification control logic that can be automatically performed in step S412 above is executed in the same way as the exception verification control logic in step S406 above.

[0190] Step S413: Power off the entire system and wait for personnel inspection. After the inspection is completed and confirmed, trigger the pre-test in step S404.

[0191] In one possible implementation, since there are multiple reasons for test anomalies, some reasons necessitate maintenance before the test can be conducted, while others do not. Therefore, in addition to triggering step S404, step S413 can also be triggered by the operator manually troubleshooting the anomaly without requiring maintenance, thus improving test efficiency. Similarly, if the operation determines the test has failed and the tested isolating switch cannot be repaired within a short time, the operator can also trigger the test termination.

[0192] Step S414: Generate the test result based on the first action state parameters, the second action state parameters, and the third action state parameters, and increment the current test control completion count by 1. Then trigger step S415.

[0193] Step S415: Determine whether the current number of test control completions is not less than a preset threshold. If yes, trigger step S416; otherwise, trigger step S410.

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

[0195] In one possible implementation, if the current number of test control completions is not 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 will be de-energized, and a Word-formatted original record will be generated. The results and records of each test in the experiment will be stored in the original record, which will then be saved to the control terminal for easy review. Simultaneously, the overcurrent protection on each control panel will be restored to its pre-test state, and prompts will be given to restore the frequency converter test transformer.

[0196] This application also provides an electronic device in its embodiments. (See reference...) Figure 5 The diagram illustrates a structural schematic suitable for implementing the electronic device in the embodiments of this application. The electronic device in the embodiments of this application may include, but is not limited to, fixed terminals such as laptops, PDAs (Personal Digital Assistants), PADs (Tablet PCs), desktop computers, etc. Figure 5 The electronic device shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of this application.

[0197] like Figure 5 As shown, the electronic device may include a processing unit (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 unit 501, ROM 502, and RAM 503 are interconnected via a bus 504. An input / output (I / O) interface 505 is also connected to the bus 504.

[0198] Typically, the following devices can be connected to I / O interface 505: input devices 506 including, for example, touchscreens, touchpads, keyboards, mice, cameras, microphones, accelerometers, gyroscopes, etc.; output devices 507 including, for example, liquid crystal displays (LCDs), speakers, vibrators, etc.; storage devices 508 including, for example, memory cards, hard drives, etc.; and communication devices 509. Communication device 509 allows electronic devices to communicate wirelessly or wiredly with other devices to exchange data. Although Figure 5Electronic devices with various devices are shown, but it should be understood that it is not required to implement or have all of the devices shown. More or fewer devices may be implemented or have alternatively.

[0199] This application also provides a computer program product including computer-readable instructions, which, when executed on an electronic device, cause the electronic device to implement any of the three capacitive current test methods for opening and closing disconnecting switches provided in this application.

[0200] This application also provides a computer-readable storage medium carrying one or more computer programs. When the one or more computer programs are executed by an electronic device, the electronic device can implement any of the three methods of capacitive current test for disconnecting switch opening and closing provided in this application.

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

[0202] Through the above description of the embodiments, those skilled in the art can clearly understand that this application can be implemented by means of software plus necessary general-purpose hardware, or it can be implemented by special-purpose hardware including application-specific integrated circuits, special-purpose CPUs, special-purpose memory, special-purpose components, etc. Generally, any function performed by a computer program can be easily implemented by corresponding hardware, and the specific hardware structure used to implement the same function can be diverse, such as analog circuits, digital circuits, or special-purpose circuits. However, for this application, software program implementation is more often the preferred implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a readable storage medium, such as a computer floppy disk, USB flash drive, mobile hard disk, ROM, RAM, magnetic disk, or optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, training equipment, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0203] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as 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, all or part of the processes or functions described in the embodiments of this application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, training device, or data center to another website, computer, training device, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a training device or data center that integrates one or more available media. The available media may be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state drives (SSDs)).

Claims

1. A test apparatus for a third method of capacitive current test for disconnecting switches, wherein the third method of capacitive current test for disconnecting switches is a test method that verifies the current switching capability of disconnecting switches by simulating the actual working conditions when a disconnecting switch interrupts a long busbar, characterized in that... include: Automatic control console for power frequency test transformers, automatic control console for disconnecting switches, measurement system, and control terminal. The automatic control console for the power frequency test transformer, the automatic control console for the disconnecting switch, and the measurement system are all communicatively connected to the control terminal. The automatic control console for the power frequency test transformer is used to respond to the first control command issued by the control terminal, control the power frequency test transformer to perform a first type of test action, and send a first action status parameter to the control terminal, wherein the first action status parameter represents the execution result of the first type of test action; The first type of test action is performed by the power frequency test transformer as the main body during the test, including at least the following actions: closing, opening, stepping up and down, stabilizing, voltage regulation and compensation, protection and overload response actions of the voltage regulator of the power frequency test transformer. The automatic control console for the disconnector is used to respond to the second control command issued by the control terminal, control the operating mechanism of the disconnector under test and the disconnector under test to perform the second type of test action, and send the second action status parameter to the control terminal. The second action status parameter represents 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. The second type of test action is the action performed by the disconnector under test as the executing body during the test, including: powering on the operating mechanism of the disconnector under test, powering off, stepping up, stepping down, opening operation and closing operation. The opening operation is used to interrupt the capacitive current, and the closing operation is used to close the capacitive current. The measurement system is used to respond to a third control command issued by the control terminal, to acquire the load-side current value of the disconnect switch under test, the power supply-side voltage and load-side voltage of the disconnect switch under test and / or their waveforms, and to send the acquired third action status parameters to the control terminal; the third action status parameters are the load-side current value of the disconnect switch under test, the power supply-side voltage and load-side voltage of the disconnect switch under test and / or their waveforms; The control terminal is used to generate the first control command, the second control command, and the third control command multiple times based on the equipment model, test parameters, and preset test control logic. It sends the first control command to the power frequency test transformer automatic control console, the second control command to the disconnect switch automatic control console, and the third control command to the measurement system to perform multiple test controls. If each test control is completed without abnormality and the current number of test control completions is not less than a preset threshold, the test result is generated based on the first action status parameter, the second action status parameter, and the third action status parameter.

2. The test apparatus for the capacitive current test method three of the disconnecting switch opening and closing according to claim 1, characterized in that, The automatic control console for the power frequency test transformer includes: Controller and data acquisition device, The signal input terminal of the controller is communicatively connected to the control terminal, and the signal output terminal of the controller is electrically connected to the control terminal of the power frequency test transformer. The signal input terminal of the data acquisition device is communicatively connected to the signal output terminal of the power frequency test transformer, and the signal output terminal of the data acquisition device is communicatively connected to the control terminal. The controller is used to respond to the first control command and control the power frequency test transformer to perform a first type of test action; The data acquisition device is used to acquire the first action status parameters, including the button status of the automatic control console of the power frequency test transformer, the total high voltage current value output by the transformer, and the door interlock status.

3. The test apparatus for the capacitive current test method three of the disconnecting switch opening and closing according to claim 1, characterized in that, The automatic control console for the disconnector switch includes: Controller and data acquisition device, The signal input terminal of the controller is communicatively connected to the control terminal, and the signal output terminal of the controller is electrically connected to the control terminal of the actuating mechanism and the control terminal of the tested isolating switch, respectively. The signal input terminal of the data acquisition device is communicatively connected to the signal output terminal of the actuating mechanism and the signal output terminal of the tested isolation switch, respectively; the signal output terminal of the data acquisition device is communicatively connected to the control terminal. The controller is used to respond to the second control command and control the action mechanism and the test isolation switch to perform the second type of test action; The data acquisition device is used to acquire the second action state parameters, including the control voltage of the actuating mechanism and the closing / opening state of the tested disconnecting switch.

4. The test apparatus for the capacitive current test method three of the disconnecting switch opening and closing according to any one of claims 1-3, characterized in that, The test apparatus also includes: Two sets of photoelectric conversion devices, one end of which is electrically connected to the controller signal input terminal and the data acquisition device signal output terminal of the target automatic control console, and the other end of which is communicatively connected to the control terminal. The target automatic control console is the power frequency test transformer automatic control console or the disconnecting switch automatic control console. The photoelectric conversion device is used to convert the control commands sent by the control terminal into optical signals for transmission, and is also used to convert the target action status parameters sent by the target automatic control console into optical signals for transmission, and is also used to convert the third action status parameters output by the measurement system into optical signals for transmission, wherein the target action status parameters are either the first action status parameters or the second action status parameters.

5. The test apparatus for the capacitive current test method three of the disconnecting switch opening and closing according to claim 4, characterized in that, The photoelectric conversion device includes: 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-optic conversion device is used to convert the control command, the target action state parameter, or the third action state parameter of the electrical signal type into the optical signal, wherein the control command is at least one of the first control command, the second control command, and the third control command; The photoelectric conversion device is used to convert the optical signal into the control command, the target action state parameter, or the third action state parameter of the electrical signal type.

6. A test method for a third type of capacitive current test for disconnecting switches, characterized in that, The test apparatus applied to the third method of capacitive current test for disconnecting switch opening and closing as described in any one of claims 1-5, wherein the test method for the third method of capacitive current test for disconnecting switch opening and closing includes: The equipment model and test parameters are obtained, and multiple test controls are performed based on the equipment model and test parameters to execute the test procedure of the disconnecting switch opening and closing capacitive current test mode three. After each test control is completed without abnormality, a test result is generated based on the received first action status parameters, second action status parameters, and third action status parameters. It is then determined whether the current number of test control completions is not less than a preset threshold. If yes, the test result is output; otherwise, the next test control is executed. The test control includes: Based on the equipment model, the test parameters, and the preset test control logic, a first control command, a second control command, and a third control command are generated. The first control command is sent to the automatic control console of the power frequency test transformer, so that the automatic control console of the power frequency test transformer responds to the first control command and controls the power frequency test transformer to perform a first type of test action. The second control command is sent to the automatic control console of the disconnect switch, so that the automatic control console of the disconnect switch responds to the second control command and controls the action mechanism of the disconnect switch under test and the disconnect switch under test to perform a second type of test action. The third control command is sent to the measurement system, so that the measurement system collects the load side current value of the disconnect switch under test, the power supply side voltage and the load side voltage of the disconnect switch under test, and / or their waveforms. The system obtains the first action status parameter fed back by the automatic control console of the power frequency test transformer, the second action status parameter fed back by the automatic control console of the disconnecting switch, and the third action status parameter fed back by the measurement system.

7. The test method for the capacitive current test mode three of the disconnecting switch opening and closing according to claim 6, characterized in that, The generation of a first control command, a second control command, and a third control command based on the equipment model, the test parameters, and the preset test control logic includes: Based on the state of the tested disconnect switch and the current number of test control completions, search the preset test control logic for the current test control logic that is compatible with both the equipment model and the test parameters. Based on the equipment model, the test parameters, and the state of the tested disconnect switch, the current test control logic generates the first control command, the second control command, and the third control command required for this test.

8. The test method for the capacitive current test mode three of the disconnecting switch opening and closing according to claim 7, characterized in that, Before sending the first control command to the automatic control console of the power frequency test transformer, causing the automatic control console of the power frequency test transformer to respond to the first control command and control the power frequency test transformer to perform a first type of test action, sending the second control command to the automatic control console of the disconnecting switch, causing the automatic control console of the disconnecting switch to respond to the second control command and control the operating mechanism of the disconnecting switch under test and the disconnecting switch under test to perform a second type of test action, and sending the third control command to the measurement system, causing the measurement system to acquire the load side current value of the disconnecting switch under test, the power supply side voltage and the load side voltage of the disconnecting switch under test and / or their waveforms, the method further includes: The current status information of the power frequency test transformer automatic control console, the disconnect switch automatic control console, and the measurement system is collected, and the equipment status is detected based on the test conditions in the current test control logic and the current status information. If the equipment status detection result is normal, the following steps are executed: sending the first control command to the automatic control console of the power frequency test transformer, so that the automatic control console of the power frequency test transformer responds to the first control command and controls the power frequency test transformer to perform a first type of test action; sending the second control command to the automatic control console of the disconnecting switch, so that the automatic control console of the disconnecting switch responds to the second control command and controls the action mechanism of the disconnecting switch under test and the disconnecting switch under test to perform a second type of test action; and sending the third control command to the measurement system, so that the measurement system collects the load side current value of the disconnecting switch under test, the power supply side voltage of the disconnecting switch under test, the load side voltage and / or their waveforms.

9. The test method for the capacitive current test mode three of the disconnecting switch opening and closing according to claim 8, characterized in that, The test method for the third method of capacitive current test for disconnecting switch opening and closing also includes: Controls for each of the aforementioned tests: The system monitors the first operating parameter of the automatic control console for the power frequency test transformer, the second operating parameter of the automatic control console for the disconnector switch, and the third operating parameter of the measurement system. When the target operating parameter triggers a preset abnormal condition, it sends a step-down control signal and a tripping control signal to the automatic control console for the power frequency test transformer. At the lowest voltage level of the power frequency test transformer, it disconnects the input of the power frequency test transformer, causing the automatic control console for the power frequency test transformer to control the output voltage of the power frequency test transformer to zero. Simultaneously, it sends a tripping control signal to the automatic control console for the disconnector switch, disconnecting the input of the operating mechanism of the disconnector switch under test, causing the input voltage of the operating mechanism of the disconnector switch under test to zero. 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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