Automatic test system and automatic test method of operation panel

Abstract

The invention belongs to the technical field of power electronics, and provides an automatic test system and method for an operation panel, and the system comprises a test management machine, a program-controlled DC source, a program-controlled input and output device, and a simulation circuit breaker, and the test management machine is in communication connection with the program-controlled DC source and the program-controlled input and output device. The program-controlled direct-current source provides an operation power supply for the operation panel, the program-controlled input and output device provides test type signals of an operation loop of the operation panel, the analog circuit breaker is connected with a closing coil and a tripping coil of the operation panel, and the program-controlled input and output device collects test point positions of the analog circuit breaker and can monitor the signals of the operation loop. Therefore, different automatic tests on the operation panel according to the test type signals can be realized, manual test operation can be effectively replaced, and the defects of wiring trouble, high labor cost and low labor efficiency existing in manual test are overcome.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of power electronics, and particularly relates to an automatic test system and an automatic test method for an operating board. BACKGROUND

[0002] In a power system, an operating board (also known as an operating circuit board) plays a core role in relay protection, monitoring and control. Its core functions include controlling the tripping and closing actions of a circuit breaker and monitoring the position state of the circuit breaker in real time. The core functions are mainly realized through TWJ (trip relay) and HWJ (close relay). At the same time, the operating board also uses anti-trip relays (such as TBJV) to prevent the circuit breaker from jumping multiple times due to repeated instructions, thereby avoiding damage to the equipment.

[0003] The correctness of the operating circuit is crucial to the safety of the power grid, because any error can cause the circuit breaker to refuse to act or malfunction, thereby causing serious power grid accidents. However, the current test of the operating board faces many challenges. Due to the complexity of the operating circuit, the existing test methods are relatively simple, and the test content is not comprehensive, making it difficult to fully verify the functions of the operating board.

[0004] In addition, for the test of the TJF (common action, permanent trip) starting power, the current specification requires that the starting power be greater than the set demand power (usually ≥5W), but this test is still mainly carried out manually, which is not only inefficient, but also easily affected by human factors, resulting in inaccurate test results. SUMMARY

[0005] The present application aims to provide an automatic test system and an automatic test method for an operating board, which aims to solve the technical problems of low efficiency and incomplete test of manual test of the operating board mentioned in the background.

[0006] The first aspect of the embodiment of the present application provides an automatic test system for an operating board, which comprises a test management machine, a program-controlled direct current source, a program-controlled input and output device, and a simulated circuit breaker; the test management machine is in communication connection with the program-controlled direct current source and the program-controlled input and output device respectively; the simulated circuit breaker is connected with a closing coil and a tripping coil of the operating board; wherein the closing coil is used to drive the simulated circuit breaker to close, and the tripping coil is used to drive the simulated circuit breaker to trip;

[0007] The test management machine is used to set an output voltage for the program-controlled direct current source;

[0008] The program-controlled direct current source is used to provide adjustable operating power for the operating board in response to the output voltage set by the test management machine;

[0009] The test management machine is further configured to set a test type signal for the program-controlled incoming and outgoing device.

[0010] The program-controlled incoming and outgoing device is configured to input the test type signal to the operation panel, so that the simulated circuit breaker is automatically tested under the action of the test type signal.

[0011] The program-controlled incoming and outgoing device is further configured to collect a position state signal of the simulated circuit breaker after the automatic test.

[0012] The test management machine is configured to determine whether the test corresponding to the test type signal passes according to the position state signal, to obtain a test result.

[0013] In an embodiment, the test type signal includes at least one of a hand-close test signal, a protection-close test signal, a close-hold test signal, a hand-jump test signal, a protection-jump test signal, a TJF straight-jump test signal, a jump-hold test signal, a jump-prevent test signal, a lock-close test signal, a lock-jump test signal, a total lock-close test signal, a total lock-jump test signal, and a TJF starting power test signal.

[0014] In an embodiment, the operation circuit of the operation panel includes a TJF relay, and the system further includes:

[0015] A programmable switching module is configured to, when the test type signal is the TJF starting power test signal and the output voltage of the operation circuit of the operation panel is gradually increased by the program-controlled incoming and outgoing device until the trip coil is energized to cause the simulated circuit breaker to open, cut off the normal operation circuit of the operation panel and retain a minimum test path of the TJF relay.

[0016] The test management machine is further configured to, when it is determined to retain the minimum test path of the TJF relay, acquire real-time voltage fed back by the program-controlled DC source and acquire real-time current fed back by the program-controlled incoming and outgoing device and flowing through the TJF relay of the operation circuit.

[0017] The test management machine is further configured to determine whether the TJF starting power meets a set requirement based on the real-time voltage and the real-time current.

[0018] In a second aspect, the application further provides an automatic test method for an operation panel, which is applied to the automatic test system for the operation panel as described in the first aspect, and the method includes:

[0019] An output voltage is acquired by the test management machine, and the output voltage is transmitted to a program-controlled DC source, so that the program-controlled DC source provides operating power for the operation panel.

[0020] The test management machine acquires a test type signal and sends the test type signal to the program-controlled incoming-outgoing device;

[0021] The program-controlled incoming-outgoing device inputs the test type signal to the operation panel, so that the simulation circuit breaker performs automatic testing under the action of the test type signal;

[0022] The program-controlled incoming-outgoing device collects the position state signal of the simulation circuit breaker after the automatic testing;

[0023] The test management machine determines whether the test corresponding to the test type signal passes according to the position state signal to obtain a test result.

[0024] In an embodiment, the program-controlled incoming-outgoing device inputs the test type signal to the operation panel, so that the simulation circuit breaker performs automatic testing under the action of the test type signal, including:

[0025] In the case that the program-controlled incoming-outgoing device inputs the test type signal to the operation panel, the operation panel outputs an output result corresponding to the test type signal under the action of the test type signal, so that the simulation circuit breaker performs opening or closing action under the action of the output result of the operation panel to form the position state signal.

[0026] In an embodiment, the test management machine acquires a test type signal and sends the test type signal to the program-controlled incoming-outgoing device, so that the program-controlled incoming-outgoing device inputs the test type signal to the operation panel, including:

[0027] The test management machine acquires a TJF starting power test signal and sends the TJF starting power test signal to the program-controlled incoming-outgoing device, so that the program-controlled incoming-outgoing device inputs the TJF starting power test signal to the operation panel, so that the operation panel feeds back a TJF direct jump output closing to the simulation circuit breaker under the action of the TJF starting power test signal.

[0028] The program-controlled incoming-outgoing device collects the position state signal of the simulation circuit breaker after the automatic testing, including:

[0029] The program-controlled incoming-outgoing device gradually increases the output voltage of the operation loop of the operation panel until the trip coil is energized to cause the simulation circuit breaker to open, and the programmable switching module cuts off the normal operation loop of the operation panel and retains the minimum test path of the TJF relay;

[0030] The test management machine determines whether the test corresponding to the test type signal passes according to the position status signal to obtain a test result, including:

[0031] The test management machine obtains the real-time output voltage fed back by the program-controlled DC source, and obtains the real-time current of the TJF relay flowing through the operating circuit fed back by the program-controlled input and output device;

[0032] The test management machine determines whether the TJF starting power meets the set requirements based on the real-time voltage and the real-time current.

[0033] In one embodiment, when the test type signal is any one of a manual closing test signal, a protection closing test signal, a closing and holding test signal, a manual tripping test signal, a protection tripping test signal, a TJF direct tripping test signal, a tripping and holding test signal, an anti-jumping test signal, a locking closing test signal, a locking tripping test signal, a total locking locking closing test signal, and a total locking locking tripping test signal, the step of obtaining the output voltage by the test management machine and transmitting the rated voltage to the program-controlled DC source so that the program-controlled DC source provides operating power to the operation panel includes:

[0034] The rated voltage is obtained by the test management machine and transmitted to the programmable DC power source, so that the programmable DC power source provides operating power for the operating panel.

[0035] In one embodiment, when the test type signal is the TJF startup power test signal, the output voltage is less than the rated voltage.

[0036] Compared with the prior art, the present invention has the following beneficial effects: the present application provides an automatic testing system and testing method for an operating panel, the system includes a test management machine, a programmable DC source, a programmable input and output device, and a simulated circuit breaker, the test management machine is respectively communicated with the programmable DC source and the programmable input and output device, the programmable DC source provides operating power to the operating panel, the programmable input and output device provides a test type signal for the operating circuit of the operating panel, the simulated circuit breaker is connected to the closing coil and tripping coil of the operating panel, the programmable input and output device retrieves the test point of the simulated circuit breaker and can monitor the operating circuit signal, thereby realizing different automated tests of the operating panel according to the test type signal, which can effectively replace manual testing operations and overcome the defects of manual testing such as troublesome wiring, high labor costs, and low labor efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 A structural block diagram of an automatic testing system for an operation panel provided by an embodiment of the present invention;

[0038] Figure 2The operation circuit schematic diagram of the operation board provided for the embodiment of the present application is as follows:

[0039] Figure 3 The flowchart schematic diagram of the automatic test method of the operation board provided for the embodiment of the present application is as follows:

[0040] The operation circuit of the operation board is as follows: Figure 2

[0041] TWJ1 represents a trip relay, which can be used for monitoring the tripping position state of the circuit breaker;

[0042] HBJ represents a close hold relay, which can be used for keeping the close circuit on and ensuring the reliable closing of the circuit breaker;

[0043] BSHJ-2 represents a post-close position relay, which can be used for indicating the position state of the circuit breaker after closing;

[0044] SW1 represents a manual / remote control switching switch, which can be used for switching the manual operation and remote control operation modes;

[0045] TBJV represents an anti-trip relay, which can prevent the circuit breaker from tripping multiple times due to repeated instructions during the tripping process;

[0046] TBJ represents a trip hold relay, which can be used for keeping the trip circuit on and ensuring the reliable tripping of the circuit breaker;

[0047] HHJ1 and HHJ2 represent post-close relays, which can be used for further confirming the closing state of the circuit breaker;

[0048] BSTJ-2 represents a post-trip position relay, which can be used for indicating the position state of the circuit breaker after tripping;

[0049] SW2 represents another switching switch, which can be used for switching different operation modes or circuits;

[0050] TJF represents a trip auxiliary relay, which can be used for assisting the tripping operation;

[0051] HWJ1 represents a close position relay, which can be used for monitoring the closing position state of the circuit breaker;

[0052] BSHJ represents a post-close position relay, which is similar to BSHJ-2 and can be used for indicating the position state after closing;

[0053] BSTJ represents a post-trip position relay, which is similar to BSTJ-2 and can be used for indicating the position state after tripping;

[0054] 4C1D27, 4C1D23, 4C1D24, 4C1D25, 4C1D20, 4C1D21: can represent the connector or terminal number, which is used for identifying the connection point in the circuit;​

[0055] DL: can represent a circuit breaker, which is a main switching device in a power system, used to turn on and off the circuit;

[0056] HQ: represents a closing coil, used to drive the circuit breaker to close;

[0057] TQ: represents a trip coil, used to drive the circuit breaker to trip. DETAILED DESCRIPTION

[0058] In order to make the technical problems to be solved by the present application, the technical solutions and beneficial effects clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not intended to limit the present application.

[0059] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0060] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0061] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0062] In a first aspect, with reference to Figure 1 The present application provides an automatic test system for operating board, which comprises a test management machine 10, a program-controlled direct current source 20, a program-controlled incoming and outgoing device 30 and a simulated circuit breaker 50; the test management machine 10 is in communication connection with the program-controlled direct current source 20 and the program-controlled incoming and outgoing device 30 respectively; the simulated circuit breaker 50 is connected with the closing coil and the trip coil of the operating board 40 respectively; wherein the closing coil is used to drive the simulated circuit breaker 50 to close, and the trip coil is used to drive the simulated circuit breaker 50 to trip.

[0063] The test management machine 10 is used to set the output voltage of the programmable DC source 20;

[0064] The programmable DC source 20 is used to provide adjustable operating power to the operating panel 40 in response to the output voltage set by the test management machine 10;

[0065] The test management machine 10 is also used to set a test type signal for the program-controlled input and output device 30;

[0066] The program-controlled input and output device 30 is used to input the test type signal to the operation panel 40 so that the simulated circuit breaker 50 performs automatic testing under the action of the test type signal;

[0067] The program-controlled opening and closing device 30 is also used to collect the position status signal of the simulated circuit breaker 50 after the automatic test;

[0068] The test management machine 10 determines whether the test corresponding to the test type signal passes according to the position status signal to obtain a test result.

[0069] It is understandable that if Figure 2 As shown in the figure, in the power system, the operation panel (operation circuit board) is the core component of relay protection, monitoring and control. The main operation circuit diagram of the operation panel is as follows Figure 2 As shown, the main functions may include closing, tripping, holding circuit, anti-jumping, closing, direct tripping, locking, etc.

[0070] The test management machine of the embodiment of the present application is respectively communicated with the programmable DC source and the programmable input and output device. The programmable DC source provides operating power to the operating panel, and the programmable input and output device provides the test type signal of the operating circuit of the operating panel. The simulated circuit breaker is connected with the closing coil and tripping coil of the operating panel. The programmable input and output device retrieves the test point of the simulated circuit breaker and can monitor the operating circuit signal, thereby realizing different automated tests of the operating panel according to the test type signal.

[0071] For example, in a specific implementation, the test management machine 10 can communicate with the programmable DC source 20 and the programmable input and output device 30 through a network, so that the user can remotely and automatically test the operation panel 40.

[0072] For example, the output rated voltage set by the test management machine 10 for the programmable DC power source 20 may be set to a DC voltage of 110 volts or a DC voltage of 20 volts, which matches the voltage level of the operation panel 40 .

[0073] In the embodiment, the test type signals can include a hand close test signal, a protection close test signal, a close hold test signal, a hand trip test signal, a protection trip test signal, a TJF direct trip test signal, a trip hold test signal, an anti-bounce test signal, a lock-in close test signal, a lock-in trip test signal, a total lock-in close test signal, a total lock-in trip test signal, and a TJF starting power test signal.

[0074] Accordingly, after the close, trip, hold, anti-bounce, post-close, direct trip, lock-in and other circuits of the operation circuit of the operation board are wired once, the full-automatic test is formed through cooperation between the test management machine 10, the program-controlled DC source 20, the program-controlled input and output device 30 and the simulated circuit breaker 50, without the need to replace the wiring, thereby improving the test efficiency.

[0075] Furthermore, different automatic tests of the operation board according to the test type signals can be realized, which can effectively replace the manual test operation and overcome the defects of manual test, such as troublesome wiring, high labor cost and low efficiency.

[0076] In addition, in some embodiments, for the test of the TJF (common action, permanent trip) starting power, the current specification requires that the starting power meets the set power condition (for example, ≥5W), but this test is still mainly performed in a manual manner, which is not only inefficient, but also is easily affected by human factors, resulting in the technical problem of inaccurate test results. In order to ensure the accuracy of the TJF starting power in the automatic test, the system can further comprise a programmable switching module.

[0077] The programmable switching module is configured to, when the test type signal is the TJF starting power test signal and the output voltage of the operation circuit of the operation board 40 is gradually increased by the program-controlled input and output device 30 until the trip coil is energized so that the simulated circuit breaker 50 is opened, cut off the normal operation circuit of the operation board 40 and keep the minimum test path of the TJF relay.

[0078] The test management machine 10 is further configured to, when it is determined to keep the minimum test path of the TJF relay, acquire the real-time voltage fed back by the program-controlled DC source 20 and acquire the real-time current fed back by the program-controlled input and output device 30, which flows through the TJF relay of the operation circuit.

[0079] The test management machine 10 is further configured to judge whether the TJF starting power meets the set requirement based on the real-time voltage and the real-time current.

[0080] It should be noted that the setting requirement of the embodiment can be TJF starting power ≥ 5W, and then the TJF relay can reliably act when receiving the starting signal, so as to trip in time and protect the safety of the equipment and system. In addition, sufficient starting power can prevent the TJF relay from malfunctioning when subjected to slight interference or noise, thereby improving the stability and reliability of the system.

[0081] Exemplarily, the minimum test path is a test path specially designed for the TJF relay, and the purpose is to exclude the interference of other circuits (such as closing, tripping, anti-tripping, etc.) of the operation panel when testing the TJF starting power, and only keep the electrical circuit required for the action of the TJF relay, so as to ensure the accuracy of power measurement.

[0082] In a specific implementation, the normal operation circuit is cut off through the programmable switching module, and only the TJF relay coil and the program-controlled direct current source are connected to form an independent minimum test circuit.

[0083] The minimum test path of the embodiment of the application is an independent test circuit specially designed for the TJF relay, and in the process of testing the TJF starting power, other circuits are isolated to ensure the accuracy and reliability of the power test.

[0084] Secondly, on the basis of the automatic test system of the operation panel described in the above embodiment, an automatic test method of the operation panel is provided, and the automatic test method of the operation panel of the embodiment of the application is applied to the automatic test system of the operation panel, and the method comprises:

[0085] Step S10: The test management machine acquires an output voltage and transmits the output voltage to the program-controlled direct current source, so as to enable the program-controlled direct current source to provide operating power for the operation panel.

[0086] It can be understood that the relevant staff can set an output voltage through the man-machine interface of the test management machine of the test system of the embodiment.

[0087] Step S20: The test management machine acquires a test type signal and sends the test type signal to the program-controlled input and output device.

[0088] In a specific implementation, when the test type signal is any one of a hand closing test signal, a protection closing test signal, a closing holding test signal, a hand tripping test signal, a protection tripping test signal, a TJF direct tripping test signal, a tripping holding test signal, an anti-tripping test signal, a lockout closing test signal, a lockout tripping test signal, a total lockout lockout closing test signal, and a total lockout lockout tripping test signal, the output voltage set by the test management machine for the program-controlled direct current source can be a rated voltage, and the rated voltage can be a direct current 110-volt voltage or a direct current 20-volt voltage, which matches the voltage level of the operation panel 40.

[0089] In the case that the test type signal is a TJF start power test signal, the output voltage set by the test management machine for the programmable DC source needs to be less than the rated voltage, for example, it can be 55% of the rated voltage, so as to facilitate the subsequent test of the TJF start power.

[0090] Step S30: inputting the test type signal to the operation panel by the programmable input and output device, so that the simulated circuit breaker automatically tests under the action of the test type signal;

[0091] For example, in the case that the programmable input and output device inputs the test type signal to the operation panel, the operation panel outputs the output result corresponding to the test type signal under the action of the test type signal, so that the simulated circuit breaker performs the tripping action or the closing action under the action of the output result of the operation panel, to form the position state signal.

[0092] Step S40: collecting the position state signal of the simulated circuit breaker after the automatic test by the programmable input and output device;

[0093] Step S50: determining whether the test corresponding to the test type signal passes according to the position state signal by the test management machine, to obtain the test result.

[0094] It can be understood that for the test type corresponding to each test type signal described above, the specific test function can be referred to the following description:

[0095] Hand closing test: simulating manual closing operation, verifying the closing function of the operation panel under the hand closing signal.

[0096] Protection closing test: simulating the closing operation initiated by the protection device, verifying the closing function of the operation panel under the protection signal.

[0097] Closing holding test: testing the closing holding function, i.e. whether the operation panel can maintain the closing state after closing, which is usually simulated by a short pulse signal.

[0098] Hand tripping test: simulating manual tripping operation, verifying the tripping function of the operation panel under the hand tripping signal.

[0099] Protection tripping test: simulating the tripping operation initiated by the protection device, verifying the tripping function of the operation panel under the protection signal.

[0100] TJF straight tripping test: testing the TJF (common action, permanent tripping) function, i.e. the operation panel should immediately trip when the TJF signal triggers.

[0101] Trip hold test: test the trip hold function of the operating panel, i.e. whether the operating panel can keep the tripped state after tripping, usually simulated by a short pulse signal.

[0102] Anti-trip test: test the anti-trip function of the operating panel, i.e. when the breaker is closing, the operating panel should be able to prevent the breaker from tripping multiple times if a trip signal is received.

[0103] Reference Figure 2 Each test type acts on the components in the operating circuit diagram, which can be seen from the following description:

[0104] Hand close test, protection close test: mainly act on the closing coil (HQ) and related closing circuits, including TWJ, HBJ, BSHJ, etc. relays.

[0105] Close hold test: mainly test the function of the closing hold relay (HBJ).

[0106] Hand trip test, protection trip test: mainly act on the trip coil (TQ) and related trip circuits, including TBJ, HHJ, BSTJ, etc. relays.

[0107] TJF direct trip test: mainly act on the TJF relay and its related trip circuit.

[0108] Trip hold test: mainly test the function of the trip hold relay (TBJ).

[0109] Anti-trip test: mainly test the function of the anti-trip relay (TBJV) and its response to the trip signal during closing.

[0110] In some embodiments, for the hand close test, the test scheme can include: the test management machine sets the output rated voltage of the program-controlled DC source to match the voltage level of the operating panel, and the program-controlled input and output device sets the hand close output to be closed.

[0111] Test result: simulate the closing of the breaker, and the program-controlled input and output device collects the closing position of the simulated breaker. If there is no closing position, the test fails.

[0112] In some embodiments, for the protection close test, the test scheme can include: the test management machine sets the output rated voltage of the program-controlled DC source to match the voltage level of the operating panel, and the program-controlled input and output device sets the protection close output to be closed.

[0113] Test result: simulate the closing of the breaker, and the program-controlled input and output device collects the closing position of the simulated breaker. If there is no closing position, the test fails.

[0114] In some embodiments, for a close to stay test, the test plan can include: the test management machine sets the programmed DC source output rated voltage to match the operating panel voltage class, the programmed under / over device is set to a close output close pulse of 5 ms, which is lower than the simulated circuit breaker close time.

[0115] Test result: the simulated circuit breaker is closed, the programmed under / over device acquires the simulated circuit breaker close position, and if there is no close position, the test fails.

[0116] In some embodiments, for a manual close test, the test plan can include: the test management machine sets the programmed DC source output rated voltage, and the programmed under / over device is set to a manual close output close.

[0117] Test result: the simulated circuit breaker is opened, the programmed under / over device acquires the simulated circuit breaker open position, and if there is no open position, the test fails.

[0118] In some embodiments, for a protection trip test, the test plan can include: the test management machine sets the programmed DC source output rated voltage, and the programmed under / over device is set to a protection trip output close.

[0119] Test result: the simulated circuit breaker is opened, the programmed under / over device acquires the simulated circuit breaker open position, and if there is no open position, the test fails.

[0120] In some embodiments, for a TJF straight trip test, the test plan can include: the test management machine sets the programmed DC source output rated voltage, and the programmed under / over device is set to a TJF straight trip output close.

[0121] Test result: the simulated circuit breaker is opened, the programmed under / over device acquires the simulated circuit breaker open position, and if there is no open position, the test fails.

[0122] In some embodiments, for a trip to stay test, the test plan can include: the test management machine sets the programmed DC source output rated voltage, and the programmed under / over device is set to a protection trip output close pulse of 5 ms, which is lower than the simulated circuit breaker trip time.

[0123] Test result: the simulated circuit breaker is opened, the programmed under / over device acquires the simulated circuit breaker open position, and if there is no open position, the test fails.

[0124] In some embodiments, for an anti-bounce test, the test plan can include: the test management machine sets the programmed DC source output rated voltage, and the programmed under / over device is set to a manual close output close pulse of 5 s, a protection trip output close pulse of 1 s in the middle of 5 s.

[0125] Test result: the simulated circuit breaker is first closed, and after receiving the protection trip, it is opened and no longer closed, and if it continues to be closed, the test fails.

[0126] In some embodiments, for the closed lock closing test, the test scheme can include: the test management machine sets the programmed DC source output rated voltage, the programmed input and output device sets the closed lock closing, and the hand closing output is closed.

[0127] Test result: the simulation circuit breaker cannot be closed, the programmed input and output device has no simulation circuit breaker closing position, and if there is a closing position, the test fails.

[0128] In some embodiments, for the closed lock closing test, the test scheme can include: the test management machine sets the programmed DC source output rated voltage, the programmed input and output device sets the closed lock closing, and the hand closing output is closed.

[0129] Test result: the simulation circuit breaker cannot be closed, the programmed input and output device has no simulation circuit breaker closing position, and if there is a closing position, the test fails.

[0130] In some embodiments, for the total closed lock closing test, the test scheme can include: the test management machine sets the programmed DC source output rated voltage, the programmed input and output device sets the total closed lock output, and the hand closing output is closed.

[0131] Test result: the simulation circuit breaker cannot be closed, the programmed input and output device has no simulation circuit breaker closing position, and if there is a closing position, the test fails.

[0132] In some embodiments, for the total closed lock closing test, the test scheme can include: the test management machine sets the programmed DC source output rated voltage, the programmed input and output device sets the total closed lock output, and the hand closing output is closed.

[0133] Test result: the simulation circuit breaker cannot be closed, the programmed input and output device has no simulation circuit breaker closing position, and if there is a closing position, the test fails.

[0134] In addition, in some embodiments, for the test of the TJF (common action, permanent trip) starting power, the current specification requires that the starting power meet the set power condition (for example, ≥5W), but this test is still mainly carried out manually, which is not only low in efficiency, but also easily affected by human factors, resulting in the technical problem of inaccurate test results. In order to ensure the accuracy of the TJF starting power in automatic testing, the S20 and S30 further include:

[0135] S20A: obtaining, by the test management machine, a TJF starting power test signal, sending the TJF starting power test signal to the programmed input and output device, so that the programmed input and output device inputs the TJF starting power test signal to the operation panel, so that the operation panel feeds back the TJF straight trip output closing to the simulation circuit breaker under the action of the TJF starting power test signal;

[0136] The step S40 comprises:

[0137] The step S40A comprises: gradually increasing the output voltage of the operating circuit of the operating panel by the programmable input and output device until the tripping coil is energized to cause the simulated circuit breaker to open, and the normal operating circuit of the operating panel is cut off by the programmable switching module, and the minimum test path of the TJF relay is reserved.

[0138] Exemplarily, the embodiment can increase the output voltage of the programmable DC source, that is, gradually increase the DC operating power voltage provided to the operating panel (including the TJF relay):

[0139] For example, the initial output voltage is set to 55% of the rated voltage (for example, when the rated voltage is 220V, the initial voltage is 121V).

[0140] The output voltage of the programmable DC source is gradually increased by 1V (122V→123V→...), and the state of the TJF relay is monitored at the same time until the TJF relay acts (the circuit breaker is tripped). The small step of 1V in the embodiment ensures the accurate capture of the relay action voltage (if the step is too large, the critical value may be missed).

[0141] It can be understood that the simulated circuit breaker (that is, the simulated load connected to the operating panel in the test system) is not the circuit breaker in the actual power grid. When the TJF starting power test is performed, the action of the TJF relay of the operating panel triggers the closing of its output contact, thereby driving the tripping coil of the simulated circuit breaker to trip. The simulated circuit breaker is used for safety testing to avoid affecting the actual power grid equipment.

[0142] The step S50 comprises:

[0143] The test management machine acquires the real-time voltage fed back by the programmable DC source and acquires the real-time current fed back by the programmable input and output device flowing through the TJF relay of the operating circuit.

[0144] The test management machine determines whether the TJF starting power meets the set requirements based on the real-time voltage and the real-time current.

[0145] Specifically, the real-time voltage (U) is measured directly by a high-precision voltmeter of the program-controlled DC source itself and fed back to the test management machine. The real-time current (I) is monitored by a program-controlled input-output device (or an integrated high-precision current sensor) in real time, and uploaded to the test management machine. According to the received U and I, the test management machine automatically calculates the power: P = U x I, and judges whether it is greater than or equal to the set requirement 5W. In turn, it can ensure the accuracy of the TJF starting power in the automatic test.

[0146] Further, in some embodiments, the above test item is integrated on the test management host, and the one-key automatic test is completed, and a test report is output.

[0147] It should be understood that the size of the serial number of each step in the above embodiments does not mean the order of execution, and the execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0148] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional units and modules is exemplified, and in actual application, the above functions can be completed by different functional units and modules according to needs, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above. Each functional unit or module in the embodiment can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The above integrated unit can be realized in the form of hardware or software. In addition, the specific name of each functional unit or module is only for easy distinction, and does not limit the protection scope of the present application. The specific working process of the unit or module in the above system can be referred to the corresponding process in the foregoing method embodiments, which will not be described here.

[0149] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described or recorded in detail in a certain embodiment can be referred to the related description of other embodiments.

[0150] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized in electronic hardware or a combination of computer software and electronic hardware. Whether the functions are executed in hardware or software depends on the specific application and design constraints of the technical solution. A person skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0151] In the embodiments of the present application, it should be understood that the disclosed apparatus / terminal device and method can be implemented in other manners. For example, the described apparatus / terminal device embodiments are merely schematic. For example, the division of the modules or units is merely logical function division. There can be another division manner for actual implementation. For example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed mutual couplings or direct couplings or communication connections between different units, can be indirect couplings or communication connections through some interfaces, devices or units.

[0152] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, i.e., can be located in one place, or can be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiments.

[0153] In addition, each functional unit in the various embodiments of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0154] The integrated module / unit, if realized in the form of a software functional unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the above-mentioned embodiment methods can also be completed by a computer program instructing related hardware, and the computer program can be stored in a computer readable storage medium. The computer program can implement the steps of each method embodiment described above when executed by a processor. The computer program includes computer program code, which can be in the form of source code, object code, executable file or some intermediate form. The computer readable medium can include any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signal, telecommunication signal and software distribution medium, etc. It should be noted that the computer readable medium can include appropriate contents according to the requirements of legislation and patent practice in the jurisdiction, for example, in some jurisdictions, according to legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunication signals.

[0155] The above-described embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application; although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. An automatic testing system for an operating panel, characterized in that: The system comprises a test management machine (10), a program-controlled DC source (20), a program-controlled input and output device (30), and a simulated circuit breaker (50); the test management machine (10) is respectively connected to the program-controlled DC source (20) and the program-controlled input and output device (30); the simulated circuit breaker (50) is respectively connected to a closing coil and a tripping coil of an operation panel (40); wherein the closing coil is used to drive the simulated circuit breaker (50) to close, and the tripping coil is used to drive the simulated circuit breaker (50) to trip; The test management machine (10) is used to set the output voltage for the programmable DC source (20); The programmable DC source (20) is used to provide adjustable operating power to the operating panel (40) in response to the output voltage set by the test management machine (10); The test management machine (10) is also used to set a test type signal for the program-controlled input and output device (30); A program-controlled input and output device (30) is used to input the test type signal to the operation panel (40), so that the simulated circuit breaker (50) performs automatic testing under the action of the test type signal; The program-controlled input and output device (30) is also used to collect the position status signal of the simulated circuit breaker (50) after the automatic test; The test management machine (10) determines whether the test corresponding to the test type signal passes according to the position status signal to obtain a test result.

2. The automatic testing system for the operating panel according to claim 1, characterized in that: The test type signal includes at least one of a manual closing test signal, a protection closing test signal, a closing and holding test signal, a manual trip test signal, a protection trip test signal, a TJF direct trip test signal, a trip and holding test signal, an anti-jump test signal, a locked closing test signal, a locked trip test signal, a total locked locked closing test signal, a total locked locked trip test signal, and a TJF starting power test signal.

3. The automatic testing system for the operating panel according to claim 1, wherein: The test management machine (10) is further configured to generate a test report based on the test results.

4. The automatic test system for the operating panel according to any one of claims 1 to 3, wherein the operating circuit of the operating panel (40) includes a TJF relay, characterized in that: The system further comprises: A programmable switching module is used for, when the test type signal is a TJF starting power test signal and the program-controlled input and output device (30) gradually increases the output voltage of the operating circuit of the operating panel (40) until the trip coil is energized so that the simulated circuit breaker (50) is disconnected, to cut off the normal operating circuit of the operating panel (40) and retain the minimum test path of the TJF relay; The test management machine (10) is further used to obtain the real-time voltage of the output fed back by the program-controlled DC source (20) and the real-time current of the TJF relay flowing through the operating circuit fed back by the program-controlled input and output device (30) when determining to retain the minimum test path of the TJF relay; The test management machine (10) is further used to judge whether the TJF starting power meets the set requirements based on the real-time voltage and the real-time current.

5. An automatic testing method for an operation panel, characterized in that: The automatic testing method of the operation panel is applied to the automatic testing system of the operation panel according to any one of claims 1 to 4, and the method comprises: The test management machine obtains the output voltage and transmits the output voltage to the programmable DC power source, so that the programmable DC power source provides operating power to the operating panel; The test management machine obtains a test type signal and sends the test type signal to the program-controlled input and output device; The program-controlled input and output device inputs the test type signal to the operation panel, so that the simulated circuit breaker performs automatic testing under the action of the test type signal; The program-controlled input and output device collects the position status signal of the simulated circuit breaker after the automatic test; The test management machine determines whether the test corresponding to the test type signal passes according to the position status signal to obtain a test result.

6. The automatic testing method according to claim 5, wherein: The program-controlled input and output device inputs the test type signal to the operation panel, so that the simulated circuit breaker performs automatic testing under the action of the test type signal, including: When the programmable input and output device inputs the test type signal to the operating panel, the operating panel outputs an output result corresponding to the test type signal under the action of the test type signal, so that the simulated circuit breaker performs an opening action or a closing action under the action of the output result of the operating panel to form the position status signal.

7. The automatic testing method according to claim 5 or 6, characterized in that: In a case where the test type signal is a TJF startup power test signal, the method further includes: The test management machine obtains a TJF starting power test signal, and sends the TJF starting power test signal to the program-controlled input and output device, so that the program-controlled input and output device inputs the TJF starting power test signal to the operation panel, so that the operation panel, under the action of the TJF starting power test signal, feeds back to the simulated circuit breaker that the TJF direct trip output is closed; The program-controlled input and output device collects the position status signal of the simulated circuit breaker after the automatic test, including: The programmable input and output device gradually increases the output voltage of the operating circuit of the operating panel until the trip coil is energized and the simulated circuit breaker is disconnected. The programmable switching module then cuts off the normal operating circuit of the operating panel and retains the minimum test path of the TJF relay. The test management machine determines whether the test corresponding to the test type signal passes according to the position status signal to obtain a test result, including: The test management machine obtains the real-time output voltage fed back by the program-controlled DC source, and obtains the real-time current of the TJF relay flowing through the operating circuit fed back by the program-controlled input and output device; The test management machine determines whether the TJF starting power meets the set requirements based on the real-time voltage and the real-time current.

8. The automatic testing method according to claim 7, wherein: In a case where the test type signal is any one of a manual closing test signal, a protection closing test signal, a closing and holding test signal, a manual tripping test signal, a protection tripping test signal, a TJF direct tripping test signal, a tripping and holding test signal, an anti-jumping test signal, a locking closing test signal, a locking tripping test signal, a total locking locking closing test signal, and a total locking locking tripping test signal, the step of obtaining an output voltage by the test management machine and transmitting the rated voltage to a program-controlled DC source so that the program-controlled DC source provides operating power to the operation panel includes: The rated voltage is obtained by the test management machine and transmitted to the programmable DC power source, so that the programmable DC power source provides operating power for the operating panel.

9. The automatic testing method according to claim 8, wherein: When the test type signal is the TJF starting power test signal, the output voltage is less than the rated voltage.

10. The automatic testing method according to claim 5, wherein: The method further includes: the test management machine generating a test report based on the test result.

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