Intelligent switch debugging system and testing method thereof

Abstract

The present invention discloses an intelligent switch debugging system and a test method thereof, comprising a control module, a signal processing module, an action module and a controlled module, wherein the controlled module is electrically connected to the action module, the action module is electrically connected to the signal processing module, the signal processing module is connected to the control module, and the signal processing module is built with a protection logic and a switch mechanical action verification module. The present invention solidifies the protection logic to be verified in the PLC program, and the operator only needs to click the "Logic Start" button on the touch screen to verify the protection logic and the switch mechanical action; and in terms of wiring, the measured voltage and current are no longer introduced into the switch box, but only need to be added to the terminal block corresponding to the debugging system, and the contactor can realize double-sided verification by adding only one side. The inconvenience of wiring inside the switch box and the situation of multiple wiring are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of intelligent switch debugging systems and relates to an intelligent switch debugging system and a testing method thereof. Background Art

[0002] The existing intelligent switches have the following problems:

[0003] 1) Smart switches are widely used

[0004] In 2020-2021, Pingtang Power Bureau installed and renovated switches to improve the power supply reliability of medium-voltage lines, eliminate existing weak lines, and irrationally segmented lines. The number of switches involved in the infrastructure project was 150 in 2020, and 100 were planned to be installed in 2021 to rectify 47 lines of our bureau. With the entry of a large number of switches, the debugging of switch protection functions, main bodies and auxiliary equipment has become an important task;

[0005] 2) Large debugging workload

[0006] In order to ensure that the switch can function well after installation, debugging is the key, and the protection logic and mechanical action of the switch should be fully debugged;

[0007] 3) Debugging and wiring are complicated

[0008] In the past, in addition to connecting the aviation plug, debugging of smart switches also required opening the switch box and connecting the three-phase measurement voltage, three-phase current and zero-sequence current. There were many wires and it was inconvenient to connect. There might also be miswiring, which greatly reduced the efficiency of debugging.

[0009] For example, the Y-time lockout logic on the A side is verified (the incoming call on the A side allows the switch to close normally, and after closing, the fault is detected within the Y time limit of 5 seconds and the switch is opened due to loss of pressure). The method of using the relay is: after connecting the A side line and setting the output of the relay, click the "test" button on the relay, wait for the X time limit of 7 seconds for the switch to close normally, and immediately press the "stop" button on the relay after the switch is closed. If the switch loses pressure within the Y time limit of 5 seconds after closing, the switch box will generate the A side Y time lockout signal to lock the switch. This achieves the purpose of the A side Y time lockout logic verification. If you want to further verify the logic of releasing the A side Y time lockout, you need to make other settings for the relay and increase the wiring inside the switch box (add B side wiring), which adds a lot of workload and time in one verification. Summary of the invention

[0010] The technical problem to be solved by the present invention is to provide an intelligent switch debugging system and a testing method thereof to solve the problems existing in the prior art.

[0011] The technical solution adopted by the present invention is: an intelligent switch debugging system, including a control module, a signal processing module, an action module (contactor group) and a controlled module, the controlled module is electrically connected to the action module, the action module is electrically connected to the signal processing module, the signal processing module is connected to the control module, and the signal processing module has built-in protection logic and switch mechanical action verification module.

[0012] Preferably, the signal processing module adopts PLC.

[0013] Preferably, the above-mentioned controlled module includes an A-side terminal block, a B-side terminal block and a current terminal block, and the A-side terminal block, the B-side terminal block and the current-side terminal block are all connected to the switch box through an aviation plug.

[0014] Preferably, the above-mentioned action module is a contactor group connected to an external power supply.

[0015] Preferably, the above-mentioned external power supply includes an external voltage terminal block and an external current terminal block, the action module includes a side A power contactor, a side B power contactor, a side A measuring contactor, a side B measuring contactor, a side A zero-sequence contactor, a side B zero-sequence contactor, a current short-circuit contactor and a current output contactor, the power ports of the side A power contactor, the side B power contactor, the side A measuring contactor and the side B measuring contactor are all connected to the external voltage terminal block, the control port is connected to the signal processing module, the power ports of the side A measuring contactor, the side B measuring contactor, the side A zero-sequence contactor, the side B zero-sequence contactor, the current short-circuit contactor and the current output contactor are connected to the external current terminal block, and the control port is connected to the signal processing module.

[0016] Preferably, the control module is a touch screen.

[0017] A testing method for an intelligent switch debugging system, the method comprising the following steps:

[0018] (1) Setting the time

[0019] X time limit, time limit Y before power-on delay closing 2, expressed as T60;

[0020] Y time limit, confirmation time limit after closing, expressed as T61;

[0021] Z time limit, power failure confirmation time limit, is expressed by T62;

[0022] Xl time limit, the time limit for delayed closing of the tie switch due to voltage loss on one side, is expressed by T63;

[0023] There is a delay in voltage on both sides. In the contact switch mode, there is a delay in voltage on both sides, using T64;

[0024] (2) Segment mode test: Definitions and meanings: Y0: A-side power supply, Y4: A-side measurement; Y1: B-side power supply, Y5: B-side measurement; Y10: A-side zero sequence, Y11: B-side zero sequence; X0: open indicates circuit breaker position, closed indicates circuit breaker position; including normal logic and blocking logic;

[0025] 3. Normal logic

[0026] ① Click the pressure button (M101) on the A side to start Y0 and Y4. After the T60 (X time limit) delay, the switch in the disconnected state is closed (X0). When X0 is closed, start Y1 and Y5 on the B side, and start the T61 (Y time limit) timing at the same time. If there is no pressure loss during the T61 timing period, the A side is closed normally. At this time, T61 and X0 pop-up windows: The touch screen displays: "A side is closed normally". Close the pop-up window and reset Y0, Y4, Y1, Y5, T60, and T61 at the same time;

[0027] Similarly: click the pressure button (M102) on the B side to start Y1 and Y5, and after the T60 (X time limit) delay, the switch closes (X0). When X0 is closed, start the A side Y0 and Y4, and start the T61 (Y time limit) timing. If there is no pressure loss during the T61 timing period, the B side closes normally and resets T60. At this time, T61 and X0 pop-up windows: the touch screen displays: "B side closes normally", close the pop-up window and reset Y0, Y4, Y1, Y5, T60, and T61 at the same time;

[0028] ② When the switch is in the closed position (X0), click the pressure-loss buttons on both sides (M103), the pressure on both sides of the switch is lost at the same time, Y0, Y4, Y1, and Y5 are reset, and the switch is disconnected after T62 (Z time limit) delay ( ), T62 and The pop-up window touch screen displays: "The circuit breaker is open normally due to pressure loss on both sides". Close the pop-up window and reset T60 and T61 at the same time.

[0029] 4. Locking logic

[0030] ①X time limit lock:

[0031] Click the A side pressure button (M101) to start Y0 and Y4. After T62 (Z time limit) is completed, reset Y0 and Y4. The pop-up window touch screen displays: "A side X time limit locked"; close the pop-up window and reset T62 at the same time;

[0032] Click the B side pressure button (M102) to start Y1 and Y5 and then after T60 (X time limit), The T60 pop-up window "The switch cannot be closed due to the X time limit lock on the A side!". Close the pop-up window and reset Y1, Y5, and T60 at the same time;

[0033] Click the A side pressure button (M101) again to start Y0 and Y4. After T60 (X time limit), the X0 and T60 pop-up window touch screen displays "A side X time limit lock released". Close the pop-up window and reset Y0, Y4, and T60 at the same time.

[0034] Similarly: click the pressure button (M102) on the B side to start Y1 and Y5. After T62 (Z time limit) is completed, reset Y1 and Y5. At this time, a locking signal will be generated, and the touch screen will display: "B side X time limit locked"; close the pop-up window and reset T62 at the same time;

[0035] Click the A side pressure button (M101) to start Y0 and Y4 and then after T60 (X time limit), The T60 pop-up window "The switch cannot be closed due to the X time limit lock on the B side!", close the pop-up window and reset Y0, Y4, and T60 at the same time;

[0036] Click the B side pressure button (M102) again to start Y1 and Y5. After T60 (X time limit), the X0 and T60 pop-up window touch screen displays "B side X time limit lock released". Close the pop-up window and reset Y1, Y5, and T60 at the same time.

[0037] ② Voltage time type - Y time limit blocking:

[0038] Click the A side pressure button (M101), after the A side is powered (Y0, Y4), start the T60 (X time limit) delay, the switch is closed (X0 is closed), and the B side Y1, Y5 are set. At this time, T62 (Z time limit) starts timing. After this timing is completed, both sides of the switch will lose pressure, reset T60, T62, Y0, Y4, Y1, Y5, and the switch will automatically open. The pop-up window on the touch screen with the falling edge of T62 displays "A side Y time limit lock";

[0039] Click the A side pressure button (M101) again to start Y0 and Y4. After T60 (X time limit), the circuit breaker will not close. The T60 pop-up window "The switch cannot be closed due to the Y time limit blocking on the A side!", close the pop-up window and reset Y0, Y4, and T60 at the same time;

[0040] Click the start button (M102) on side B to start Y1 and Y5 and delay T60 (X time limit). The Y time limit blocking on side A is released, and the pop-up window of switch X0 and T60 displays "Y time limit blocking on side A is released". Close the pop-up window and reset Y1, Y5, and T60 at the same time.

[0041] Similarly: click the pressure button on the B side (M102), after the B side is powered (Y1, Y5), start the T60 (X time limit) delay, close the switch in the disconnected state (X0), and set Y0 and Y4 on the A side. At this time, T62 (Z time limit) starts timing. After this timing is completed, both sides of the switch will lose pressure, reset T60, T62, Y0, Y4, Y1, Y5, and the closed switch will automatically open. At the falling edge of T62, a pop-up window on the touch screen displays "B side Y time limit locked".

[0042] Click the B side pressure button (M102) again to start Y1 and Y5. After T60 (X time limit), the circuit breaker will not close. The T60 pop-up window "The switch cannot be closed due to the Y time limit blocking on the B side!", close the pop-up window and reset Y1, Y5, and T60 at the same time;

[0043] Click the start button (M101) on side A to start Y0 and Y4 and delay T60 (X time limit), then the Y time limit block on side B is released, and the pop-up window of X0 and T60 displays "B side Y time limit block is released". Close the pop-up window and reset Y0, Y4, and T60 at the same time;

[0044] ③ Short-time gate lock:

[0045] Click the button on the A side to start Y0 and Y4. After the delay of T60 (X time limit), the switch is closed (X0). The B side is energized by the closing of the switch Y1 and Y5. At this time, T61 (Y time limit) starts timing. After the timing is completed, T60 and T61 are reset. The pop-up window on the touch screen with the falling edge of T60 or T61 will display “short-time trip lock”;

[0046] Similarly: long press the switch controller to release the lock, then click the pressure button on the B side to start Y1 and Y5. After the delay of T60 (X time limit), the switch is closed (X0). The A side is energized by the switch closing Y0 and Y4. At this time, T61 (Y time limit) starts timing. After the timing is completed, T60 and T61 are reset. The falling edge of X0 and T60 or the falling edge of T61 pops up on the touch screen "short-time opening lock";

[0047] ⑤ Close to zero pressure alarm / open and lock closing function:

[0048] Click the pressure button on the A side to start Y0 and Y4. After T60 (X time limit), the switch is closed (Y1 and Y5 on the B side are energized by closing the switch). The closing position X0 starts the zero sequence Y10 on the A side or the zero sequence Y11 on the B side, and the switch is opened and locked to close the switch. The touch screen with the Y10 or Y11 pop-up window displays: "Close to zero-sequence voltage lock"; close the pop-up window and reset T60 and Y0, Y1, Y4, Y5, Y10, and Y11 at the same time;

[0049] Similarly: click the pressure button on the B side to start Y1 and Y5. After T60 (X time limit), the switch is closed. Y0 and Y4 on the A side are energized by the closing. The closing position X0 starts the zero sequence Y10 on the A side or the zero sequence Y11 on the B side. The switch is opened and locked. The switch is energized and closed. The touch screen with the Y10 or Y11 pop-up window displays: "Close to zero-sequence voltage lock". Close the pop-up window and reset T60 and Y0, Y1, Y4, Y5, Y10, and Y11 at the same time;

[0050] ⑥ Voltage and current type - closing to zero voltage, overcurrent, zero current alarm / opening and locking closing function:

[0051] Enter this function module and immediately set Y14, then click the overcurrent trip and lock button (M101) to energize Y0 and Y4, and start T60 (X time limit) at the same time. After the time limit, the switch closes X0 (Y1 and Y5 on the B side are energized by closing the switch). After the switch is closed, X10 starts Y15, and then resets Y14. Reset Y1, Y5, When the Y15 pop-up window touch screen displays "Overcurrent trip lock and close", and the pop-up window is closed, Y14 is set and Y0, Y4, Y15, and T60 are reset.

[0052] It also includes step (3) contact mode:

[0053] 1. Closing due to one-side pressure loss:

[0054] Click the A side pressure loss closing button to set Y0, Y4, Y1, and Y5. After T64 (pressure delay on both sides), reset Y0 and Y4, and start T63 (X1 time limit) timing at the same time. When the timing is completed, the T63 and X0 pop-up window "Contact switch A side pressure loss closing is normal" will appear on the touch screen. When the pop-up window is closed, reset T63, T64, Y1, and Y5.

[0055] Similarly: click the B side pressure loss closing button, set Y0, Y4, Y1, Y5, after T64, reset Y1, Y5, and start T63 (X1 time limit) timing at the same time. When the timing is completed, the touch screen of the pop-up window "Contact switch B side pressure loss closing is normal" of T63 and X0 will pop up. When the pop-up window is closed, reset T63, T64, Y0, Y4;

[0056] 2. Residual pressure locking function:

[0057] Click the A side residual pressure lock button, set Y0, Y4, Y1, Y5, after T64, reset Y0, Y4, and start T62 (Z time limit) timing. After the timing is completed, set Y0, Y4 for 1 second (T65) and then reset. The falling edge of T65 is The pop-up window "A side residual pressure lock" appears on the touch screen. Close the pop-up window and reset Y1, Y5, T62, and T64 at the same time.

[0058] When the device is locked by residual pressure, click the residual pressure lock button on side A, set Y0, Y4, Y1, and Y5, and after T64 (pressure delay on both sides), T64 and A pop-up window "Residual pressure lock on side A is released" will appear on the touch screen; close the pop-up window and reset Y0, Y4, Y1, Y5, T62 and T64 at the same time;

[0059] Similarly: click the residual pressure lock button on the B side, set Y0, Y4, Y1, and Y5, after T64 (, reset Y1 and Y5, and start T62 (Z time limit) timing. After the timing is completed, set Y1 and Y5 for 1 second (T65) and then reset. The falling edge of T65 is The pop-up window "B side residual pressure lock" appears on the touch screen. Close the pop-up window and reset Y0, Y4, T62, and T64 at the same time.

[0060] When the device is locked by residual pressure, click the residual pressure lock button on the B side, set Y0, Y4, Y1, and Y5, and after T64, T64 and A pop-up window "B side residual pressure lock released" appears on the touch screen. Close the pop-up window and reset Y0, Y4, Y1, Y5, T62, and T64 at the same time.

[0061] Beneficial effects of the present invention: Compared with the prior art, the present invention solidifies the protection logic to be verified in the PLC program, and the operator only needs to click the "Logic Start" button on the touch screen to verify the protection logic and the mechanical action of the switch; and in terms of wiring, the measured voltage and current are no longer introduced into the switch box, but only need to be added to the terminal block corresponding to the debugging system, and only one side of the quantity needs to be added to realize the double-side verification by the contactor. This avoids the inconvenience of wiring inside the switch box and the situation of multiple wiring. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 It is a schematic diagram of the principle structure of the present invention;

[0063] Figure 2 It is the SFC branch design diagram of PLC. DETAILED DESCRIPTION

[0064] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0065] Example 1: Figure 1-Figure 2 As shown, an intelligent switch debugging system includes a control module, a signal processing module, an action module (contactor group) and a controlled module, the controlled module is electrically connected to the action module, the action module is electrically connected to the signal processing module, the signal processing module is connected to the control module, and the signal processing module has a built-in protection logic and a switch mechanical action verification module.

[0066] The control module is a touch screen, with the touch screen as the core. The operator can click buttons on the touch screen to perform corresponding logic checks.

[0067] The signal processing module uses PLC, with PLC as the core, and realizes the action by writing the corresponding PLC logic program. PLC interacts with the touch screen in real time, reads the instructions issued by the operator, and realizes visual control.

[0068] The action module is a contactor group, which is connected to an external power supply. The external power supply includes an external voltage terminal block and an external current terminal block. The action module includes a power contactor on the A side, a power contactor on the B side, a measuring contactor on the A side, a measuring contactor on the B side, a zero-sequence contactor on the A side, a zero-sequence contactor on the B side, a current short-circuit contactor and a current output contactor. The power ports of the power contactor on the A side, the power contactor on the B side, the measuring contactor on the A side and the measuring contactor on the B side are all connected to the external voltage terminal block, and the control port is connected to the signal processing module. The power ports of the measuring contactor on the A side, the measuring contactor on the B side, the zero-sequence contactor on the A side, the zero-sequence contactor on the B side, the current short-circuit contactor and the current output contactor are connected to the external current terminal block, and the control port is connected to the signal processing module; the PLC program can control the action of the action module and give voltage and current signals. The purpose of setting 8 contactors is to use the opening and closing of the contactors to simulate the situation of the intelligent switch gaining and losing power and whether there is zero-sequence overcurrent, as follows:

[0069] The power contactor on the A side and the power contactor on the B side are used to simulate the power supply conditions of the lines on both sides of the intelligent switch;

[0070] The A-side measuring contactor and the B-side measuring contactor simulate the voltage and current measurement values ​​collected by the voltage and current transformers on both sides of the intelligent switch;

[0071] The zero-sequence contactor on the A side and the zero-sequence contactor on the B side are used to simulate the zero-sequence current detected after the intelligent switch is closed;

[0072] The current shorting contactor and the current opening contactor are designed to prevent overcurrent after the smart switch is closed.

[0073] The controlled module includes the A-side terminal block, the B-side terminal block and the current terminal block, which are all connected to the switch box through aviation plugs. The controlled module is the intelligent switch box and the switch body, which are connected to the contactor of the debugging platform through aviation plugs. The action of the action module gives the correct logical combination, which is transmitted to the intelligent switch box through the aviation plug to achieve the purpose of verifying whether the switch box can send the correct action signal and make the switch act.

[0074] Implementation process of protection logic and switch mechanical action verification module:

[0075] 1) About time setting

[0076]

[0077] 2) Segmentation mode of software modules

[0078] Symbol meaning: Y0: A-side power supply, Y4: A-side measurement; Y1: B-side power supply, Y5: B-side measurement;

[0079] Y10: zero sequence on the A side, Y11: zero sequence on the B side;

[0080] X0: Open means the circuit breaker is in open position, and closed means the circuit breaker is in open position.

[0081] 5. Normal Logic

[0082] ① Click the pressure button (M101) on the A side to start Y0 and Y4. After the T60 (X time limit) delay, the switch in the disconnected state is closed (X0). When X0 (circuit breaker closing position) is closed, start Y1 and Y5 on the B side, and start the T61 (Y time limit) timing at the same time. If there is no pressure loss during the T61 timing period, the A side is closed normally. At this time, T61 and X0 pop-up windows: The touch screen displays: "A side is closed normally" (the pop-up window can be manually closed to return to the interface; close button M201), close the pop-up window and reset Y0, Y4, Y1, Y5, T60, and T61 at the same time.

[0083] Similarly: click the pressure button (M102) on the B side to start Y1 and Y5, and after the delay of T60 (X time limit), the switch is closed (X0). When X0 (circuit breaker closed position) is closed, start Y0 and Y4 on the A side, and start T61 (Y time limit) timing at the same time. If there is no pressure loss during the T61 timing period, the B side is closed normally and T60 is reset at the same time. At this time, T61 and X0 pop-up windows: The touch screen displays: "B side closed normally" (you can manually close the pop-up window and return to the interface; close button M201). Close the pop-up window and reset Y0, Y4, Y1, Y5, T60, and T61 at the same time.

[0084] ② When the switch is in the closed position (X0), click the pressure-loss buttons (M103) on both sides, and the pressure on both sides of the switch will be lost at the same time (reset Y0, Y4, Y1, Y5), and the switch will be disconnected after T62 (Z time limit) delay. T62 and The pop-up window touch screen displays: "Due to pressure loss on both sides, the circuit breaker is open normally" (you can manually close the pop-up window and return to the interface; close button M201). Closing the pop-up window will reset T60 and T61 at the same time.

[0085] 6. Locking logic

[0086] ①X time limit lock:

[0087] Click the A side pressure button (M101) to start Y0 and Y4. After T62 (Z time limit) is completed, reset Y0 and Y4. The pop-up window touch screen displays: "A side X time limit locked" (you can manually close the pop-up window to return to the interface; close button M201); close the pop-up window and reset T62 at the same time.

[0088] Click the B side pressure button (M102) to start Y1 and Y5 and then after T60 (X time limit), The T60 pop-up window "The switch cannot be closed due to the X time limit lock on the A side!". Close the pop-up window and reset Y1, Y5, and T60 at the same time.

[0089] Click the A side pressure button (M101) again to start Y0 and Y4. After T60 (X time limit), the X0 and T60 pop-up window touch screen displays "A side X time limit lock released". Close the pop-up window and reset Y0, Y4, and T60 at the same time.

[0090] Similarly: click the pressure button (M102) on the B side to start Y1 and Y5. After the T62 (Z time limit) timing is completed, reset Y1 and Y5. At this time, a locking signal will be generated (the touch screen displays: "B side X time limit locked" (you can manually close the pop-up window and return to the interface; close button M201)); close the pop-up window and reset T62 at the same time.

[0091] Click the A side pressure button (M101) to start Y0 and Y4 and then after T60 (X time limit), The T60 pop-up window "The switch cannot be closed due to the X time limit lock on the B side!". Close the pop-up window and reset Y0, Y4, and T60 at the same time.

[0092] Click the B side pressure button (M102) again to start Y1 and Y5. After T60 (X time limit), the X0 and T60 pop-up window touch screen displays "B side X time limit lock released". Close the pop-up window and reset Y1, Y5, and T60 at the same time.

[0093] ② Voltage time type - Y time limit blocking:

[0094] Click the A side pressure button (M101), after the A side is powered (Y0, Y4), start the T60 (X time limit) delay, the switch is closed (X0 is closed), and the B side Y1, Y5 are set. At this time, T62 (Z time limit) starts timing. After this timing is completed, both sides of the switch will lose pressure (reset T60, T62, Y0, Y4, Y1, Y5), and the switch will automatically open. With the falling edge of T62, a pop-up window on the touch screen displays "A side Y time limit locked".

[0095] Click the A side pressure button (M101) again to start Y0 and Y4. After T60 (X time limit), the circuit breaker will not close. The T60 pop-up window shows "The switch cannot be closed because the Y time limit on the A side is locked!". Close the pop-up window and reset Y0, Y4, and T60 at the same time.

[0096] Click the start button (M102) on the B side to start Y1 and Y5 and delay T60 (X time limit), then the A side Y time limit block is released, and the switch is closed. The pop-up window of X0 and T60 displays "A side Y time limit block is released". Close the pop-up window and reset Y1, Y5, and T60 at the same time.

[0097] Similarly: click the pressure button on the B side (M102), after the B side is powered (Y1, Y5), start the T60 (X time limit) delay, the switch in the disconnected state is closed (X0), and the Y0 and Y4 on the A side are set. At this time, T62 (Z time limit) starts timing. After this timing is completed, both sides of the switch will lose pressure (reset T60, T62, Y0, Y4, Y1, Y5), and the closed switch will automatically open. At the falling edge of T62, a pop-up window on the touch screen displays "B side Y time limit locked".

[0098] Click the B side pressure button (M102) again to start Y1 and Y5. After T60 (X time limit), the circuit breaker will not close. The T60 pop-up window "The switch cannot be closed due to the Y time limit blocking on the B side!". Close the pop-up window and reset Y1, Y5, and T60 at the same time.

[0099] Click the start button (M101) on side A to start Y0 and Y4 and delay T60 (X time limit), then the Y time limit block on side B is released, and the pop-up window of X0 and T60 displays "B side Y time limit block is released". Close the pop-up window and reset Y0, Y4, and T60 at the same time.

[0100] ③ Short-time gate lock:

[0101] Click the button on the A side to start Y0 and Y4. After the delay of T60 (X time limit), the switch is closed (X0). The B side is energized by the closing of the switch Y1 and Y5. At this time, T61 (Y time limit) starts timing. After the timing is completed, T60 and T61 are reset. With the falling edge of T60 or T61, a pop-up window “Short-time opening and closing” will appear on the touch screen.

[0102] Similarly: long press the switch controller to release the lock, then click the pressure button on the B side to start Y1 and Y5. After the delay of T60 (X time limit), the switch is closed (X0). Due to the closing of the switch, Y0 and Y4 on the A side are energized. At this time, T61 (Y time limit) starts timing. After the timing is completed, T60 and T61 are reset. The falling edge of X0 and T60 or the falling edge of T61 will pop up on the touch screen to display "short-time opening lock".

[0103] ⑤ Close to zero pressure alarm / open and lock closing function:

[0104] Click the pressure button on the A side to start Y0 and Y4. After T60 (X time limit), the switch is closed (Y1 and Y5 on the B side are energized by closing the switch). The closing position X0 starts the zero sequence Y10 on the A side or the zero sequence Y11 on the B side, and the switch is opened and locked to close the switch. The Y10 or Y11 pop-up window on the touch screen displays: "Close to zero-sequence voltage lock". Close the pop-up window and reset T60 and Y0, Y1, Y4, Y5, Y10, and Y11 at the same time.

[0105] Similarly: click the pressure button on the B side to start Y1 and Y5. After T60 (X time limit), the switch is closed (Y0 and Y4 on the A side are energized by closing the switch). The closing position X0 starts the zero sequence Y10 on the A side or the zero sequence Y11 on the B side. The switch is opened and locked. The Y10 or Y11 pop-up window on the touch screen displays: "Close to zero-sequence voltage lock". Close the pop-up window and reset T60 and Y0, Y1, Y4, Y5, Y10, and Y11 at the same time.

[0106] ⑥ Voltage and current type - closing to zero voltage, overcurrent, zero current alarm / opening and locking closing function:

[0107] Enter this screen and immediately set Y14, then click the overcurrent trip and lock button (M101) to energize Y0 and Y4, and start T60 (X time limit) at the same time. After the time limit, the switch closes X0 (Y1 and Y5 on the B side are energized by closing the switch). After the switch is closed, X10 starts Y15, and then resets Y14. Reset Y1, Y5, The Y15 pop-up window touch screen displays "Overcurrent trip lock and close". When the pop-up window is closed, Y14 is set and Y0, Y4, Y15 and T60 are reset.

[0108] 3. Contact Mode

[0109] 3. Closing in case of one-side pressure loss:

[0110] Click the A side pressure loss closing button, set Y0, Y4, Y1, Y5, after T64 (double-side pressure delay), reset Y0, Y4, and start T63 (Xl time limit) timing at the same time, and the timing is completed when T63 and X0 pop-up window "Contact switch A side pressure loss closing is normal" appears on the touch screen. When the pop-up window is closed, reset T63, T64, Y1, Y5.

[0111] Similarly: click the B side pressure loss closing button, set Y0, Y4, Y1, Y5, after T64 (pressure delay on both sides), reset Y1, Y5, and start T63 (X1 time limit) timing at the same time. After the timing is completed, the T63 and X0 pop-up window on the touch screen "Contact switch B side pressure loss closing is normal". When the pop-up window is closed, reset T63, T64, Y0, Y4.

[0112] 4. Residual pressure locking function:

[0113] Click the A side residual pressure lock button, set Y0, Y4, Y1, Y5, after T64 (double-side pressure delay), reset Y0, Y4, and start T62 (Z time limit) timing. After the timing is completed, set Y0, Y4 for 1 second (T65) and then reset. The falling edge of T65 is A pop-up window will appear on the touch screen stating "Residual pressure on side A is locked". Close the pop-up window and reset Y1, Y5, T62, and T64 at the same time.

[0114] When the device is locked by residual pressure, click the residual pressure lock button on side A, set Y0, Y4, Y1, and Y5, and after T64 (pressure delay on both sides), T64 and A pop-up window "A side residual pressure lock released" appears on the touch screen.

[0115] Close the pop-up window and reset Y0, Y4, Y1, Y5, T62, and T64 at the same time.

[0116] Similarly: click the residual pressure lock button on the B side, set Y0, Y4, Y1, and Y5, and after T64 (pressure delay on both sides), reset Y1 and Y5, and start T62 (Z time limit) timing. After the timing is completed, set Y1 and Y5 for 1 second (T65) and then reset. The falling edge of T65 is A pop-up window will appear on the touch screen stating "Residual pressure on side B is locked". Close the pop-up window and reset Y0, Y4, T62, and T64 at the same time.

[0117] When the device is locked by residual pressure, click the residual pressure lock button on the B side, set Y0, Y4, Y1, and Y5, and after T64 (pressure delay on both sides), T64 and A pop-up window "B side residual pressure lock released" appears on the touch screen.

[0118] Close the pop-up window and reset Y0, Y4, Y1, Y5, T62, and T64 at the same time.

[0119] For example, the test process is as follows: connect the action module to the switch box with three aviation plugs, and add the measured value on the A side to the corresponding terminal block of the debugging system; start the PLC on the debugging system, set the X time limit to 7 seconds and the Y time limit to 5 seconds on the touch screen, click the "Enter Segmentation Mode" button of the protection logic and switch mechanical action verification module, and then click the "Enter A side Y time limit lock" button after entering, and finally click the start button to start the logic verification, and the logic of releasing the A side Y time limit lock can be verified without adding the B side wiring.

[0120] Problems that can be solved by the intelligent switch debugging system and its testing method:

[0121] (1) The intelligent switch debugging system reduces the complexity of debugging wiring and overcomes the disadvantage of inaccurate locking signals generated by manually operated relay protection devices;

[0122] (2) Transform logic checks that are difficult or impossible to perform into simple click checks, which not only expands the scope of the logic checks but also reduces the difficulty.

[0123] (3) Through rigorous testing of the “voltage-time” feeder automation switch, the distribution network switch can be transformed from waiting for a fault to handle the fault to cooperating with the substation to quickly isolate the fault, thus reducing the workload of the distribution network staff in patrolling the line, improving the reliability of the distribution network power supply, and ensuring continuous power supply to customers;

[0124] (4) Through precise debugging, the risk of multiple voltage-time type distribution terminal logic action errors causing the expansion of the fault range, inaccurate fault interval judgment, reclosing failure caused by slow switch opening speed, and distribution terminal burning caused by large switch closing current can be reduced.

[0125] The advantages of intelligent switch debugging system are as follows:

[0126] (1) Compared with the debugging of relay protection tester, there is no need to wire inside the intelligent switch box which already has many lines. Only the aviation plug needs to be connected to the switch box, and one side of the measurement quantity needs to be connected to the debugging system to realize debugging, so the wiring is simpler;

[0127] (2) Compared with the relay protection tester which can only test part of the logic, the intelligent switch debugging system has solidified verification steps and can perform full inspection of the project. And the operation only requires clicking the buttons on the touch screen to perform the logic verification of the intelligent switch one by one;

[0128] (3) The mechanical action of the contactor is intuitive, so that the set logic can be clearly displayed, which is conducive to the operator to reconfirm the correctness of the given logic;

[0129] (4) The PLC program can be modified according to the protection situation and will not become invalid due to the addition or change of protection logic, which has a certain degree of adaptability.

[0130] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A testing method for an intelligent switch debugging system, Features: It includes a control module, a signal processing module, an action module and a controlled module, the controlled module is electrically connected to the action module, the action module is electrically connected to the signal processing module, the signal processing module is connected to the control module, and the signal processing module has a built-in protection logic and a switch mechanical action verification module; a test method for an intelligent switch debugging system includes the following steps: (1) Setting the time X time limit, time limit Y before power-on delay closing, expressed as T60; Y time limit, confirmation time limit after closing, expressed as T61; Z time limit, power failure confirmation time limit, expressed as T62; Xl time limit, the time limit for delayed closing of the tie switch due to voltage loss on one side, expressed as T63; There is pressure delay on both sides. In contact mode, there is pressure delay on both sides, using T64; (2) Segment mode test: Definition of symbols: Y0: A-side power supply, Y4: A-side measurement; Y1: B-side power supply, Y5: B-side measurement; Y10: A-side zero sequence, Y11: B-side zero sequence; Indicates the open position of the circuit breaker, X0 indicates the closed position of the circuit breaker, including normal logic and blocking logic; 1. Normal logic ① Click the pressure button M101 on the A side to start Y0 and Y4. After the T60 delay, the switch in the disconnected state is closed. When the switch is closed, start Y1 and Y5 on the B side, and start T61 timing at the same time. If there is no pressure loss during the T61 timing period, the A side is closed normally. At this time, T61 and X0 pop-up windows: the touch screen displays: "A side is closed normally". Close the pop-up window and reset Y0, Y4, Y1, Y5, T60, and T61 at the same time; Similarly: click the pressure button M102 on the B side to start Y1 and Y5, and the switch is closed after the T60 delay. When the switch is closed, start Y0 and Y4 on the A side, and start T61 timing at the same time. If there is no pressure loss during the T61 timing period, the B side is closed normally and T60 is reset at the same time. At this time, T61 and X0 pop-up windows: the touch screen displays: "B side closed normally", close the pop-up window and reset Y0, Y4, Y1, Y5, T60, and T61 at the same time; ②When the switch is in the closed position, click the pressure-loss button M103 on both sides, the pressure on both sides of the switch will be lost at the same time, Y0, Y4, Y1, and Y5 will be reset, and the switch will be disconnected after T62 delay. Pop-up window: The touch screen displays: "The circuit breaker is open normally due to pressure loss on both sides". Close the pop-up window and reset T60 and T61 at the same time.

2. Locking logic ①X time limit lock: Click the M101 button on the A side to start Y0 and Y4. After T62 timing is completed, Y0 and Y4 are reset. T62 and Pop-up window: The touch screen displays: "A side X time limit locked"; close the pop-up window and reset T62 at the same time; Click the button M102 on the B side to start Y1 and Y5 through T60. The T60 pop-up window "The switch cannot be closed due to the X time limit lock on the A side!", close the pop-up window and reset Y1, Y5, and T60 at the same time; Click the A side pressure button M101 again to start Y0 and Y4. After T60, X0 and T60 pop-up windows appear: "A side X time limit lock released" is displayed on the touch screen. Close the pop-up window and reset Y0, Y4 and T60 at the same time. Similarly: click the button M102 on the B side to start Y1 and Y5. After T62 is completed, reset Y1 and Y5. At this time, a locking signal will be generated, and the touch screen will display: "B side X time limit locking"; close the pop-up window and reset T62 at the same time; Click the M101 button on the A side to start Y0 and Y4 through T60. The T60 pop-up window "The switch cannot be closed due to the X time limit lock on the B side!", close the pop-up window and reset Y0, Y4, and T60 at the same time; Click the button M102 on the B side again to start Y1 and Y5. After T60, the pop-up window of X0 and T60 will display "B side X time limit lock released". Close the pop-up window and reset Y1, Y5 and T60 at the same time. ② Voltage time type - Y time limit blocking: Click the pressure button M101 on the A side. After the A side is powered on and Y0 and Y4 are started, T60 delay is started, the switch is closed, and Y1 and Y5 on the B side are set. At this time, T62 starts timing. After this timing is completed, both sides of the switch will lose pressure, reset T60, T62, Y0, Y4, Y1, and Y5, and the switch will automatically open. Pop-up window with falling edge of T62: Touch screen displays "A side Y time limit locked"; Click the A side pressure button M101 again to start Y0 and Y4. After T60, the circuit breaker will not close. The T60 pop-up window "The switch cannot be closed due to the Y time limit blocking on the A side!", close the pop-up window and reset Y0, Y4, and T60 at the same time; Click the start button M102 on the B side to start Y1 and Y5 and delay T60. The time limit blocking of the A side Y is released, and the switch X0 and T60 pop-up window are displayed: "The time limit blocking of the A side Y is released" is displayed on the touch screen. Close the pop-up window and reset Y1, Y5, and T60 at the same time. Similarly: click the pressure button M102 on the B side, after the B side is powered on and starts Y1 and Y5, start the T60 delay, close the switch in the disconnected state, set Y0 and Y4 on the A side, and then start T62 timing. After this timing is completed, both sides of the switch will lose pressure, reset T60, T62, Y0, Y4, Y1, and Y5, and the closed switch will automatically open. Pop-up window with T62 falling edge: Touch screen displays "B side Y time limit lock", Click the button M102 on the B side again to start Y1 and Y5. After T60, the circuit breaker will not close. The T60 pop-up window "The switch cannot be closed due to the Y time limit blocking on the B side!", close the pop-up window and reset Y1, Y5, and T60 at the same time; Click the start button M101 on side A to start Y0 and Y4 and delay T60, then the Y time limit block on side B is released, and a pop-up window of X0 and T60 appears: "B side Y time limit block is released" is displayed on the touch screen, close the pop-up window and reset Y0, Y4 and T60 at the same time; ③ Short-time gate lock: Click the button on the A side to start Y0 and Y4. After the T60 delay, the switch is closed. The B side is energized by the switch closing Y1 and Y5. At this time, T61 starts timing. After the timing is completed, T60 and T61 are reset. Pop-up window with the falling edge of T60 or T61: "Short-time opening lock" is displayed on the touch screen; Similarly: long press the switch controller to release the lock, then click the pressure button on the B side to start Y1 and Y5. After the T60 delay, the switch is closed. The A side is energized by the switch closing Y0 and Y4. At this time, T61 starts timing. After the timing is completed, T60 and T61 are reset. The window pops up with the falling edge of X0 and T60 or the falling edge of T61: "Short-time opening lock" is displayed on the touch screen; ⑤ Closing to zero-sequence voltage alarm / opening and locking closing function: Click the pressure button on the A side to start Y0 and Y4. After T60, the switch is closed. Y1 and Y5 on the B side are energized by the closing of the switch. The switch is closed to position X0 to start the zero sequence Y10 on the A side or the zero sequence Y11 on the B side. The switch is opened and locked. With the pop-up window of Y10 or Y11: the touch screen displays: "Close to zero-sequence voltage lock"; close the pop-up window, and reset T60 and Y0, Y1, Y4, Y5, Y10, Y11 at the same time; Similarly: click the pressure button on the B side to start Y1 and Y5. After T60, the switch is closed. Y0 and Y4 on the A side are energized by the closing of the switch. The switch is closed to position X0 to start the zero sequence Y10 on the A side or the zero sequence Y11 on the B side. The switch is opened and locked. With the pop-up window of Y10 or Y11: the touch screen displays: "Close to zero-sequence voltage lock", close the pop-up window, and reset T60 and Y0, Y1, Y4, Y5, Y10, Y11 at the same time; ⑥ Voltage and current type - close to zero sequence voltage, overcurrent, zero current alarm / open and lock closing function: Enter this function module and immediately set Y14, then click the overcurrent trip and lock button M101, Y0 and Y4 are energized, and the switch X0 is closed after the T60 time limit is started. Y1 and Y5 on the B side are energized due to the closing of the switch. After the switch is closed, Y15 is started, and then Y14 is reset, and the X0 switch is reset. Y1 and Y5 are de-energized due to the opening of the X0 switch. With the Y15 pop-up window: the touch screen displays: "Overcurrent trip lock closing". When the pop-up window is closed, Y14 is set and Y0, Y4, Y15 and T60 are reset.

2. A testing method for an intelligent switch debugging system according to claim 1, Features: The signal processing module adopts PLC.

3. A testing method for an intelligent switch debugging system according to claim 1, Features: The controlled module includes an A-side terminal block, a B-side terminal block and a current terminal block, and the A-side terminal block, the B-side terminal block and the current-side terminal block are all connected to the switch box through an aviation plug.

4. A testing method for an intelligent switch debugging system according to claim 1, Features: The action module is a contactor group connected to an external power supply.

5. The testing method of the intelligent switch debugging system according to claim 1, Features: The external power supply includes an external voltage terminal block and an external current terminal block, the action module includes a side A power contactor, a side B power contactor, a side A measuring contactor, a side B measuring contactor, a side A zero-sequence contactor, a side B zero-sequence contactor, a current short-circuit contactor and a current output contactor, the power ports of the side A power contactor, the side B power contactor, the side A measuring contactor and the side B measuring contactor are all connected to the external voltage terminal block, the control port is connected to the signal processing module, the power ports of the side A measuring contactor, the side B measuring contactor, the side A zero-sequence contactor, the side B zero-sequence contactor, the current short-circuit contactor and the current output contactor are connected to the external current terminal block, and the control port is connected to the signal processing module.

6. A testing method for an intelligent switch debugging system according to claim 1, Features: The control module is a touch screen.

7. A testing method for an intelligent switch debugging system according to claim 1, Features: The method further comprises step (3) contact mode:

1. Closing due to one-side pressure loss: Click the A side pressure loss closing button to set Y0, Y4, Y1, and Y5. After T64, reset Y0 and Y4, and start T63 timing at the same time. After the timing is completed, T63 and X0 pop-up window: the touch screen displays "Tie switch A side pressure loss closing is normal". When the pop-up window is closed, reset T63, T64, Y1, and Y5. Similarly: click the B side pressure loss closing button, set Y0, Y4, Y1, Y5, after T64, reset Y1, Y5, and start T63 timing at the same time. After the timing is completed, T63 and X0 pop-up window: the touch screen displays "Contact switch B side pressure loss closing is normal", and when the pop-up window is closed, reset T63, T64, Y0, Y4; 2. Residual pressure locking function: Click the A side residual pressure lock button, set Y0, Y4, Y1, Y5, after T64, reset Y0, Y4, and start T62 timing. After the timing is completed, set Y0, Y4 for 1 second, that is, reset again after T65. The falling edge of T65 and Pop-up window: The touch screen displays "A side residual pressure locked", close the pop-up window, and reset Y1, Y5, T62, and T64 at the same time; When the device is locked by residual pressure, click the residual pressure lock button on the A side, set Y0, Y4, Y1, and Y5, and after T64, T64 and Pop-up window: The touch screen displays "Residual pressure lock on side A is released"; close the pop-up window and reset Y0, Y4, Y1, Y5, T62, and T64 at the same time; Similarly: click the residual pressure lock button on the B side, set Y0, Y4, Y1, and Y5, reset Y1 and Y5 after T64, and start T62 timing at the same time. After the timing is completed, set Y1 and Y5 for 1 second, that is, reset again after T65. The falling edge of T65 is Pop-up window: The touch screen displays "B side residual pressure locked", close the pop-up window, and reset Y0, Y4, T62, and T64 at the same time; When the device is locked by residual pressure, click the residual pressure lock button on the B side, set Y0, Y4, Y1, and Y5, and after T64, T64 and Pop-up window: The touch screen displays "B side residual pressure lock released". Close the pop-up window and reset Y0, Y4, Y1, Y5, T62, and T64 at the same time.

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