A special tester and method for anti-trip circuit

Abstract

The present invention discloses a special tester and method for anti-tripping circuits. The special tester for anti-tripping circuits includes a box body and an operating panel fixed in the box body. A control circuit and an electrical circuit are arranged in the box body below the operating panel. The operating panel is provided with a plurality of indicator lights, a plurality of test interfaces electrically connected to the control circuit and used to connect a debugging line, and a plurality of test buttons electrically connected to the electrical circuit. The plurality of test buttons are connected to the electrical circuit to form a detection circuit to complete various tests. The plurality of indicator lights are connected to the control circuit or the electrical circuit to indicate the test status. The corresponding test method is also disclosed. The present invention belongs to the field of circuit detection instruments, can be applied to anti-tripping backtesting tests of various protection devices, can effectively improve work efficiency, shorten its maintenance time limit, simplify the test steps, and improve power supply reliability.

Description

[Technical field]

[0001] The invention relates to the field of circuit detection instruments, and in particular to a special tester and method for anti-tripping circuits. [Background technology]

[0002] With the vigorous development of power grids, the overhaul and technical transformation business of teams is increasing year by year. During the overhaul and technical transformation process, due to the relatively primitive test methods for the anti-trip circuits of switches and protective devices, in order to simulate the test circuit function under the dynamic dead condition of the KK switch node, the maintenance personnel basically use artificial short-dead operation contacts. There are some irregular behaviors in the entire test project, and it requires the cooperation of multiple people. Due to the cumbersome test methods, test failures are easy to occur during the cooperation process; the entire test process is time-consuming and laborious, the test success rate is low, and there are greater safety risks during the test process. [Summary of the invention]

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and propose a special anti-tripping circuit tester and method, thereby increasing the test success rate and simplifying the test steps.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] According to the first part of the embodiment of the present invention, there is provided a special anti-trip circuit tester, comprising a box body and an operating panel fixed in the box body, a control circuit and an electrical circuit are provided in the box body below the operating panel, the operating panel is provided with a plurality of indicator lights, a plurality of test interfaces electrically connected to the control circuit and used to connect to a debugging line, and a plurality of test buttons electrically connected to the electrical circuit, the plurality of test buttons are connected to the electrical circuit to form a detection circuit to complete various tests, and the plurality of indicator lights are connected to the control circuit or the electrical circuit to indicate the test status.

[0006] Preferably, the multiple test interfaces include 101 terminals, 133 terminals and 103 terminals, and a control loop switch ZKK2 is provided on the operating panel, one end of the control loop switch ZKK2 is electrically connected to the 101 terminals, and the other end of the control loop switch ZKK2 is electrically connected to the 133 terminals and the 103 terminals respectively.

[0007] Preferably, the operating panel is provided with a device power switch ZKK1, the multiple test buttons include an emergency stop button, an anti-trip circuit jump position test button and an anti-trip circuit closing position test button, the electrical circuit includes a device power supply and a jump position test branch and a closing position test branch connected to the device power supply, the device power switch ZKK1 is connected between the device power supply and one end of the emergency stop button, the jump position test branch and the closing position test branch are arranged between the other end of the emergency stop button and the device power switch ZKK1, the anti-trip circuit jump position test button is connected to the jump position test branch, and the anti-trip circuit closing position test button is connected to the closing position test branch.

[0008] Preferably, the multiple indicator lights are respectively a fault light, a power light, a closed position anti-trip test indicator light and an open position anti-trip test indicator light, wherein the fault light is connected in series with the control circuit switch ZKK2 to indicate the working status of the control circuit, the power light is connected in series with the device power switch ZKK1 to indicate the power status, the open position anti-trip test indicator light is connected in series with the anti-trip circuit jump position test button to indicate the jump position test status, and the closed position anti-trip test indicator light is connected in series with the anti-trip circuit closed position test button to indicate the closed position test status.

[0009] Preferably, contactor KM1 and contactor KM2 are provided under the operation panel; the other end of the control circuit switch ZKK2 is electrically connected to one end of the main contact of contactor KM1 and one end of the main contact of contactor KM2 respectively, the other end of the main contact of contactor KM1 is electrically connected to the 133 terminal, and the other end of the main contact of contactor KM2 is electrically connected to the 103 terminal; the jump detection branch includes the normally open auxiliary contact of contactor KM1, the normally closed contact of contactor KM2, and the coil of contactor KM1, one end of the anti-jump circuit jump test button is connected to the other end of the emergency stop button, the normally open auxiliary contact of contactor KM1 is connected in parallel with the anti-jump circuit jump test button, and the other end of the anti-jump circuit jump test button One end of the normally closed contact of contactor KM2 is connected, and the other end of the normally closed contact of contactor KM2 is connected to one end of the coil of contactor KM1; the closing position detection branch includes the normally open auxiliary contact of contactor KM2, the normally closed contact of contactor KM1, and the coil of contactor KM2, one end of the anti-tripping circuit closing position test button is connected to the other end of the emergency stop button, the normally open auxiliary contact of contactor KM2 is connected in parallel with the anti-tripping circuit closing position test button, the other end of the anti-tripping circuit closing position test button is connected to one end of the normally closed contact of contactor KM1, and the other end of the normally closed contact of contactor KM1 is connected to one end of the coil of contactor KM2; the other end of the KM1 coil and the other end of the KM2 coil are both connected to the device power switch ZKK1.

[0010] Preferably, a thermal relay FR is also connected in the electrical circuit, and the thermal relay FR is connected between the emergency stop button and the jump position detection branch and the closing position detection branch.

[0011] Preferably, the operating panel is also provided with a device power supply monitoring voltmeter and an operating loop current check meter. The device power supply monitoring voltmeter is connected in parallel to both ends of the device power supply. One end of the operating loop current check meter is connected to the control loop switch ZKK2, and the other end is respectively connected to the 133 terminal and the 103 terminal.

[0012] Preferably, the box is further provided with a PLC controller fixed on the operation panel, and the PLC controller is electrically connected to the control circuit and the electrical circuit.

[0013] Preferably, a base plate is fixedly installed in the box, a fixed bracket is provided between the base plate and the operating panel, the components in the control circuit and the electrical circuit are installed on the base plate or the operating panel, and the circuit is connected between the operating panel and the base plate.

[0014] According to a second aspect of an embodiment of the present invention, a dedicated test method for an anti-tripping circuit is provided, comprising the following steps:

[0015] Step 1, close the device power switch ZKK1, control circuit switch ZKK2, and start the anti-trip circuit special tester;

[0016] Step 2, connect the terminal to be tested to the 101 terminal, the 133 terminal and the 103 terminal with a debugging line;

[0017] Step 3, press the anti-tripping circuit jump position test button to perform a jump position test, and the open position anti-tripping test indicator light will light up; or, press the anti-tripping circuit closed position test button to perform a closed position test, and the closed position anti-tripping test indicator light will light up to complete the test.

[0018] The beneficial effects of the present invention are:

[0019] The special tester for anti-tripping circuit of the present invention only needs to connect the corresponding wiring terminals to the 101 wiring post, the 133 wiring post and the 103 wiring post with the special debugging line during the test, and press the corresponding button to complete the corresponding anti-tripping function test in one-touch mode, and the test method is simple;

[0020] The instrument uses a PLC controller to control the program, which improves the test accuracy and no longer requires the cooperation of multiple people, saving time and effort. The control circuit and electrical circuit are separated from the operator by an operation panel and a box, which ensures higher safety during the test.

[0021] There is a fixed bracket between the operation panel and the base plate as support, and the overall box is relatively stable. Various components, test interfaces, indicator lights, etc. in the control circuit and electrical circuit are installed on the base plate or the operation panel. When taking and placing the box, the internal components can remain stable, will not be misplaced, and are not easily damaged, which meets the needs of carrying this instrument to different places for testing.

[0022] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0023] The present invention will be further described below in conjunction with the accompanying drawings:

[0024] Figure 1 It is a structural schematic diagram of a special tester for anti-tripping circuit in an embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the box in an embodiment of the present invention;

[0026] Figure 3 is a circuit diagram of a control loop in an embodiment of the present invention;

[0027] Figure 4 4 is a circuit diagram of an electrical circuit in an embodiment of the present invention.

[0028] Reference numerals:

[0029] Box body 100, operation panel 200, bottom plate 210, fixing bracket 220;

[0030] Operating loop current check meter 310, device power supply monitoring voltage meter 320;

[0031] 101 terminal 410, 133 terminal 420, 103 terminal 430;

[0032] Fault light 510, power light 520, closed position anti-trip test indicator light 530, open position anti-trip test indicator light 540;

[0033] Emergency stop button 610, anti-trip circuit trip position test button 620, anti-trip circuit closing position test button 630;

[0034] Control loop switch ZKK2 710, device power switch ZKK1 720;

[0035] PLC controller 800. [Specific implementation method]

[0036] The technical solutions of the embodiments of the present invention are explained and described below in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise clearly specified.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0041] Reference Figures 1 to 4The present invention proposes a special anti-jump circuit tester, which can improve the test success rate and simplify the test steps. The tester includes a box 100, an operation panel 200 is fixedly installed in the box 100, and a control circuit and an electrical circuit are arranged below the operation panel 200 in the box 100. The operation panel 200 is provided with a plurality of indicator lights, a plurality of test interfaces electrically connected to the control circuit and used to connect the debugging line, and a plurality of test buttons electrically connected to the electrical circuit. The plurality of test buttons are connected to the electrical circuit to form a detection circuit to complete various tests. The plurality of indicator lights are connected to the control circuit or the electrical circuit to indicate the test status.

[0042] Reference Figure 2 In addition to the operation panel 200, the box body 100 also has a bottom plate 210. The bottom plate 210 is fixedly mounted on the bottom wall of the internal space of the box body 100 and is spaced apart from the operation panel 200. The two are connected by a fixing bracket 220, so that the operation panel 200 can be stably mounted in the box body. The control circuit and the electrical circuit have many electrical components, which are mounted on the bottom plate 210 or the operation panel 200, and the circuit connections between them are also located between the two. Since the bottom plate 210 and the operation panel 200 are both firmly and stably mounted in the box body 100, as the box body 100 vibrates, the bottom plate 210 and the operation panel 200 can also remain stationary relative to the box body 100, and the electrical components mounted on the two can not be misplaced or fall off, and the whole can remain stable. Therefore, the instrument can be used for a long time without worrying about internal circuit errors, which meets the condition that the instrument can be carried to various places for use.

[0043] Among them, refer to Figure 3 , multiple test interfaces are electrically connected to the control circuit respectively, and the multiple test interfaces are 101 terminal 410, 133 terminal 420 and 103 terminal 430. A control circuit switch ZKK2 is provided on the operation panel, one end of the control circuit switch ZKK2 is electrically connected to the 101 terminal, and the other end of the control circuit switch ZKK2 is electrically connected to the 133 terminal and the 103 terminal respectively.

[0044] A device power switch ZKK1 is provided on the operating panel, and multiple test buttons may include an emergency stop button 610, an anti-trip circuit jump position test button 620 and an anti-trip circuit closing position test button 630. The electrical circuit includes a device power supply and a jump position test branch and a closing position test branch connected to the device power supply. The device power switch ZKK1 is connected between the device power supply and one end of the emergency stop button, the jump position test branch and the closing position test branch are arranged between the other end of the emergency stop button and the device power switch ZKK1, the anti-trip circuit jump position test button is connected to the jump position test branch, and the anti-trip circuit closing position test button is connected to the closing position test branch.

[0045] The normal range of the working voltage of the present invention is between 23.5 and 25.5V, so when the power supply of the device drops to 23.7V, charging should be carried out in time.

[0046] The power switch ZKK1 720 can be a double-pole single-throw switch. The two contacts at one end of the power switch ZKK1 720 are respectively connected to the two ends of the power supply of the device, and the two contacts at the other end of the power switch ZKK1 720 are respectively connected to one end of the emergency stop button 610 (X00) and one end of the jump position detection branch and one end of the closed position detection branch. The other end of the emergency stop button 610 (X00) is connected to the other end of the jump position detection branch and the other end of the closed position detection branch.

[0047] Multiple indicator lights are used to display the test status, which can be set to a fault light 510, a power light 520, a closed position anti-trip test indicator light 530 and an open position anti-trip test indicator light 540, wherein the fault light 510 is connected in series with the control circuit switch ZKK2 710 to indicate the working status of the control circuit, the power light 520 is connected in series with the device power switch ZKK1 720 to indicate the power status, the open position anti-trip test indicator light 540 is connected in series with the anti-trip circuit jump position test button 620 to indicate the jump position test status, and the closed position anti-trip test indicator light 530 is connected in series with the anti-trip circuit closed position test button 630 to indicate the closed position test status.

[0048] The jump position test branch and the closing position test branch can construct an interlocking circuit by setting a contactor. The normally open auxiliary contact of the contactor in one branch controls the coil circuit of the contactor in another branch, thereby forming an interlocking circuit so that only one branch can be turned on at the same time. When any program of the jump position test and the closing position test is in progress, the other program is automatically locked; when the emergency stop button is pressed, both test programs stop. In particular, a spare button control switch can be set in each branch of the jump position test branch and the closing position test branch.

[0049] For example, contactor KM1 and contactor KM2 are arranged under the operating panel, and the other end of the control circuit switch ZKK2 is electrically connected to one end of the main contact of contactor KM1 and one end of the main contact of contactor KM2 respectively, the other end of the main contact of contactor KM1 is electrically connected to the 133 terminal, and the other end of the main contact of contactor KM2 is electrically connected to the 103 terminal.

[0050] The jump detection branch may include the normally open auxiliary contact of contactor KM1, the normally closed contact of contactor KM2, and the coil of contactor KM1. One end of the anti-jump circuit jump test button is connected to the other end of the emergency stop button. The normally open auxiliary contact of contactor KM1 is connected in parallel with the anti-jump circuit jump test button. The other end of the anti-jump circuit jump test button is connected to one end of the normally closed contact of contactor KM2. The other end of the normally closed contact of contactor KM2 is connected to one end of the coil of contactor KM1.

[0051] The closing position detection branch may include the normally open auxiliary contact of contactor KM2, the normally closed contact of contactor KM1, and the coil of contactor KM2. One end of the anti-tripping circuit closing position test button is connected to the other end of the emergency stop button. The normally open auxiliary contact of contactor KM2 is connected in parallel with the anti-tripping circuit closing position test button. The other end of the anti-tripping circuit closing position test button is connected to one end of the normally closed contact of contactor KM1. The other end of the normally closed contact of contactor KM1 is connected to one end of the coil of contactor KM2. The other end of the KM1 coil and the other end of the KM2 coil are both connected to the device power switch ZKK1.

[0052] In particular, a thermal relay FR is also connected in the electrical circuit to protect the circuit from overload. The thermal relay FR can be set between the emergency stop button 610 and the jump position detection branch and the closing position detection branch. A device power supply monitoring voltmeter can also be provided on the operating panel to detect the voltage of the device power supply. The device power supply monitoring voltmeter is connected in parallel to both ends of the device power supply. An operating loop current check meter can also be provided on the operating panel to detect the current in the control loop. One end of the operating loop current check meter is connected to the control loop switch ZKK2, and the other end of the operating loop current check meter is connected to the 133 terminal and the 103 terminal respectively.

[0053] In addition, a PLC controller 800 is installed below the operating panel 200 in the box 100, and the PLC controller 800 controls the control circuit and the electrical circuit, especially the jump position test branch and the close position test branch, such as the opening and closing control of the contactor KM1 and the contactor KM2. The PLC controller 800 is installed between the fixed bracket 220 and the operating panel 200, and the fixed bracket 220 supports the controller 800, reduces the force on the operating panel 200, and increases the stability of the operating panel 200.

[0054] The control circuit and the electrical circuit are separated from the operator by the operation panel 200 and the box 100, so the safety during the test is high.

[0055] The special anti-trip circuit tester of the present invention can also be applied to anti-trip return test of various protection devices, and can also be applied to anti-trip circuit test of various switch mechanisms, which can effectively improve work efficiency, shorten the maintenance time limit, and improve power supply reliability.

[0056] Based on the above-mentioned anti-tripping circuit dedicated tester, the present invention provides a special anti-tripping circuit testing method, comprising the following steps:

[0057] Step 1, close the device power switch ZKK1, control circuit switch ZKK2, and start the anti-trip circuit special tester;

[0058] Step 2, connect the terminal to be tested to the 101 terminal, the 133 terminal and the 103 terminal with a debugging line;

[0059] Step 3, press the anti-tripping circuit jump position test button to perform a jump position test, and the open position anti-tripping test indicator light will light up; or, press the anti-tripping circuit closed position test button to perform a closed position test, and the closed position anti-tripping test indicator light will light up to complete the test.

[0060] The original test method requires the following steps: a. Repair five-protection unlocking; b. Manually short-circuit the operating circuits 101 and 133; c. Locally operate the hand-on switch; d. Remove the short-circuit circuit between 101 and 133; e. Manually short-circuit the operating circuits 101 and 103; f. Locally operate the hand-off switch; g. Remove the short-circuit circuit between 101 and 103; h. Return the five-protection unlocking key; After the application of the results, it is simplified to a. Connect 101, 133, and 103 to the corresponding terminals of the device according to the instructions; b. Press the corresponding button; c. Check the test results and complete the test. The whole process is complicated and prone to errors, and is not easy to implement.

[0061] When the anti-trip circuit tester of this instrument is controlled by a PLC controller, one-button testing is achieved through PLC numerical control technology. After connecting the basic circuit, pressing the corresponding test button can directly start the test and obtain the required results, thereby simplifying the anti-trip circuit test process, the operation is extremely convenient and simple, and the number of operators is reduced without errors. The test success rate is higher and the work efficiency is greatly improved.

[0062] Among them, the program can be terminated when the emergency stop button 610 is pressed; when the control circuit switch ZKK2 jumps, the fault light 510 lights up. At this time, the control circuit should be checked for faults or abnormalities. When the cause of the fault is unknown, the anti-jump circuit test shall not be performed again; the jump test program logic time is set to 15 seconds, and the jump test program logic time is set to 5 seconds.

[0063] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A special tester for anti-tripping circuit, characterized in that: It comprises a box body and an operation panel fixed in the box body, wherein a control circuit and an electrical circuit are arranged in the box body below the operation panel, wherein the operation panel is provided with a plurality of indicator lights, a plurality of test interfaces electrically connected to the control circuit and used to connect to a debugging line, and a plurality of test buttons electrically connected to the electrical circuit, wherein the plurality of test buttons are connected to the electrical circuit to form a detection circuit to complete various tests, and the plurality of indicator lights are connected to the control circuit or the electrical circuit to indicate the test status; The multiple test interfaces include a 101 terminal, a 133 terminal and a 103 terminal, and a control loop switch ZKK2 is provided on the operation panel, one end of the control loop switch ZKK2 is electrically connected to the 101 terminal, and the other end of the control loop switch ZKK2 is electrically connected to the 133 terminal and the 103 terminal respectively; The operation panel is provided with a device power switch ZKK1, the multiple test buttons include an emergency stop button, an anti-tripping circuit jump position test button and an anti-tripping circuit closing position test button, the electrical circuit includes a device power supply and a jump position test branch and a closing position test branch connected to the device power supply, the device power switch ZKK1 is connected between the device power supply and one end of the emergency stop button, the jump position test branch and the closing position test branch are provided between the other end of the emergency stop button and the device power switch ZKK1, the anti-tripping circuit jump position test button is connected to the jump position test branch, and the anti-tripping circuit closing position test button is connected to the closing position test branch; Contactor KM1 and contactor KM2 are provided below the operation panel; the other end of the control circuit switch ZKK2 is electrically connected to one end of the main contact of contactor KM1 and one end of the main contact of contactor KM2 respectively, the other end of the main contact of contactor KM1 is electrically connected to the 133 terminal, and the other end of the main contact of contactor KM2 is electrically connected to the 103 terminal; the jump detection branch includes the normally open auxiliary contact of contactor KM1, the normally closed contact of contactor KM2, and the coil of contactor KM1, one end of the anti-jump circuit jump test button is connected to the other end of the emergency stop button, the normally open auxiliary contact of contactor KM1 is connected in parallel with the anti-jump circuit jump test button, and the other end of the anti-jump circuit jump test button is connected One end of the normally closed contact of contactor KM2, and the other end of the normally closed contact of contactor KM2 are connected to one end of the coil of contactor KM1; the closing detection branch includes the normally open auxiliary contact of contactor KM2, the normally closed contact of contactor KM1, and the coil of contactor KM2, one end of the closing test button of the anti-jump circuit is connected to the other end of the emergency stop button, the normally open auxiliary contact of contactor KM2 is connected in parallel with the closing test button of the anti-jump circuit, the other end of the closing test button of the anti-jump circuit is connected to one end of the normally closed contact of contactor KM1, and the other end of the normally closed contact of contactor KM1 is connected to one end of the coil of contactor KM2; the other end of the coil of KM1 and the other end of the coil of KM2 are both connected to the power switch ZKK1 of the device; A thermal relay FR is also connected in the electrical circuit. The thermal relay FR is connected between the emergency stop button and the jump position detection branch and the closing position detection branch.

2. The anti-trip circuit tester according to claim 1, characterized in that: The multiple indicator lights are respectively a fault light, a power light, a closed position anti-trip test indicator light and an open position anti-trip test indicator light, wherein the fault light is connected in series with the control circuit switch ZKK2 to indicate the working status of the control circuit, the power light is connected in series with the device power switch ZKK1 to indicate the power status, the open position anti-trip test indicator light is connected in series with the anti-trip circuit trip test button to indicate the trip test status, and the closed position anti-trip test indicator light is connected in series with the anti-trip circuit closed position test button to indicate the closed position test status.

3. The anti-trip circuit tester according to claim 1, characterized in that: The operating panel is also provided with a device power supply monitoring voltmeter and an operating loop current check meter. The device power supply monitoring voltmeter is connected in parallel to both ends of the device power supply. One end of the operating loop current check meter is connected to the control loop switch ZKK2, and the other end is connected to the 133 terminal and the 103 terminal respectively.

4. A special anti-trip circuit tester according to any one of claims 1 to 3, characterized in that: The box body is also provided with a PLC controller fixed on the operation panel, and the PLC controller is electrically connected to the control circuit and the electrical circuit.

5. The anti-trip circuit special tester according to claim 4, characterized in that: A bottom plate is fixedly installed in the box, a fixed bracket is provided between the bottom plate and the operation panel, the components in the control circuit and the electrical circuit are installed on the bottom plate or the operation panel, and the circuit is connected between the operation panel and the bottom plate.

6. A special test method for anti-tripping circuit, characterized in that: The special tester for anti-tripping circuit based on claim 1 above also includes the following steps: Step 1, close the device power switch ZKK1 and the control circuit switch ZKK2 to start the special tester for anti-tripping circuit; Step 2, connect the terminals to be tested to the 101 terminals, 133 terminals and 103 terminals with debugging lines; Step 3, press the anti-tripping circuit jump position test button to perform a jump position test, and the open position anti-tripping test indicator light up; or, press the anti-tripping circuit closed position test button to perform a closed position test, and the closed position anti-tripping test indicator light up to complete the test.

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