CN102023271B - Spare power automatic switching logic test method for verifying automatic switching modes of high voltage side buscouple switch - Google Patents

Abstract

The invention relates to the technical field of inspection of substation equipment, and discloses a logic test method for checking the automatic switching mode of the bus tie switch on the high-voltage side. The initial state of the experiment: the state where the simulated circuit breaker modules 1DL to 4DL are set to be closed: the test state : Push the experimental switch AN3 to the disconnected position to make the analog transformer module 3PT act: no AC power; detect the logic action of the self-injection device for analog circuit breaker modules 1DL and 5DL, and make the analog transformer module 3PT act: with AC power; The self-injection device of the test equipment can be added to the operation. The invention can simulate the standby automatic switching function of the bus connection of the transmission line in the standby automatic switching, can conveniently test the protection setting value of the standby automatic switching protection device, and has convenient operation and reliable results. It can meet the inspection work of the automatic switching device of the bridge line equipment in the power system, greatly provides the test flexibility, and improves the production efficiency.

Description

A backup self-transition logic test method for verifying the self-transition mode of the bus tie switch on the high-voltage side

technical field

The invention relates to the technical field of substation equipment inspection, and is especially suitable for checking the automatic switching mode of the bus-tie switch on the high-voltage side for checking the logic function of the bus-tie backup switch of the standby self-switching device when the bus-tie switch of the transmission line is in standby. Prepare self-injection logic test method.

Background technique

With the application of new technologies, social life is increasingly dependent on power supply, and the reliability of power system power supply has become an important indicator to measure power quality. In order to improve the reliability of power supply, most 110KV substations often adopt the power supply mode of the inner bridge connection mode and the bus tie switch of two transmission lines as backup, that is, the power supply mode of two transmission lines running and the bus tie switch as backup. Backup power automatic switching device is widely used. However, due to the fact that the 110KV substation transmission line will be completely shut down, there are many parameters in the acquisition system when the standby automatic switching device is working, the action involves a wide range of circuit breakers, and the actual risk of transmission experiments with switches is relatively high. At present, it is more complicated to verify the automatic switching device that adopts the backup switching function of the bus tie of the transmission line.

Line bus tie auto-injection: when running, two lines run. The position of the bus tie circuit breaker. One line has a section of high-voltage side pressure busbar, as shown in Figure 1.

If line 1 fails, causing the bus voltage on the high voltage side of the substation brought by line 1 to disappear, the backup self-injection device will trip the circuit breaker 1DL connected to line 1 and close the circuit breaker 5DL.

Contents of the invention

In order to solve the problems existing in the prior art, the present invention provides a logic test method for standby automatic switching to verify the automatic switching mode of the bus tie switch on the high voltage side.

In order to realize the above-mentioned purpose of the invention, the present invention adopts following technical scheme:

A backup self-switching logic test method for verifying the automatic switching mode of the bus tie switch on the high-voltage side, the steps are as follows:

The first step: tester test line access:

1. Insert one side of the aviation plug of the test cable attached to the tester into the input "operation" jacks of the analog circuit breaker modules 1DL, 3DL, 5DL of the tester respectively, and the other side will simulate the circuit breaker modules 1DL, 3DL, "DL1", "DL3" and "DL33" of 5DL are respectively connected to the "common terminal", "signal terminal" and "signal terminal" of the operating terminal of the high-voltage side circuit breaker of the 1# main transformer of the standby automatic switching device; One side of the aviation plug of the test cable is inserted into the output "signal" jack of the simulated circuit breaker module 1DL, 3DL, 5DL, and the other side is connected to the "801I end" and "802I end" of the simulated circuit breaker module 1DL, 3DL, 5DL. ", "803I terminal" are respectively connected to the "common terminal", "signal terminal" and "signal terminal" of the signal terminal of the high-voltage side circuit breaker of the 1# main transformer of the standby automatic switching device;

The analog circuit breaker module 1DL of the tester corresponds to the circuit breaker on the high voltage side of the 1# main transformer, the analog circuit breaker module 3DL corresponds to the circuit breaker on the high voltage side of the 2# main transformer, and the analog circuit breaker module 5DL corresponds to the bus tie circuit breaker on the high voltage side.

The second step: the initial state of the experiment:

Turn the power switch of the simulated circuit breaker modules 1DL to 5DL of the tester to the "Device Power" position, use the DC power provided by the tester during the test, and set the DC circuit breaker "ZLKK" and AC circuit breaker on the tester to Push "JLKK" to the conduction position; push the experimental switches "AN1", "AN2", "AN3" and "AN4" to the conduction position; simulate the circuit breaker module 1DL, the simulated circuit breaker module 2DL, and the simulated circuit breaker module 3DL and analog circuit breaker module 4DL are adjusted to the closing position;

1. Set the manual operation analog circuit breaker module 1DL to the closed state:

Press the closing button HC of the analog circuit breaker module 1DL, and the DC positive power is transmitted to the connection relay "1DL-SW" through the closing button HC and the normally closed contact 3-2 of the relay 1DL-SW in the analog circuit breaker module 1DL. The 1-terminal contact point of the positive pole of the coil; the 6-terminal contact point in the relay 1DL-SW is connected to the negative pole of the relay "1DL-SW" action coil to form a DC circuit; the relay "1DL-SW" action, the switch contacts of the relay are turned on and off: The normally closed contact 3-2 of the SW is disconnected; the normally open contact of the 4-5 terminal is conducted; the normally open contact of the 8-9 terminal is conducted;

The DC positive power is transmitted to the terminal 1 of the relay "1DL-KⅠ" of the analog circuit breaker module 1DL and the relay "1DL-KⅡ" through the open circuit breaker "ZLKK" and the 4-5 terminal contact of the relay "1DL-SW". The terminal 1 of the positive pole of the coil; the negative pole of the action coil of the relay "1DL-KⅠ" and the relay "1DL-KⅡ" carries a DC negative power, and the relay "1DL-KⅠ" and the relay "1DL-KⅡ" flip when the power is turned on:

The normally open contact of the a1-a2 end of the relay 1DL-KⅠ is turned on, and the DC positive current carried by the a1 end of the relay 1DL-KⅠ is connected to the red light D1, and the red light D1 turns from off to bright; at the same time, the green light D2 turns from on to off ; The normally open contacts of the b1-b2 end of the relay 1DL-KⅠ are turned on; the b1 end is connected to the experimental switch "AN1" through the terminal "1DL-GY1", and the b2 end is connected to the "1DL-GY2" terminal; On, the experimental switch "AN1", the conduction terminals "1DL-GY1" and "1DL-GY2" in the analog circuit breaker module 1DL are transmitted to the connection terminal "2DL-GY1" in the analog circuit breaker module 2DL;

The relay 1DL-KⅡ acts, the normally open contacts of the terminals a1-a2 of the relay 1DL-KⅡ are turned on, and the terminals a1 and a2 are respectively connected to the terminals 1DL-801Ⅰ and 1DL-802Ⅰ of the standby automatic switching device, and the connecting line of the standby automatic switching device "1DL-801Ⅰ" and "1DL-802Ⅰ" conduction;

At the same time, the normally closed contact between the terminals a1-a3 of the relay 1DL-KⅡ is disconnected, and the terminals 1DL-803Ⅰ and 1DL-801Ⅰ of the standby automatic switching device connected to the terminal a3 are disconnected;

At the same time, the normally open contact between the terminals b1-b2 of the relay 1DL-KⅡ is turned on, and the connection line "1DL-801Ⅱ" and "1DL-802Ⅱ" of the standby automatic switching device are turned on;

At the same time, the normally closed contact between the terminals b1-b3 of the relay 1DL-KⅡ is disconnected, and the connection line "1DL-801Ⅱ" and "1DL-803Ⅱ" of the standby automatic switching device are disconnected;

2. Set the manual operation analog circuit breaker module 2DL to the closed state:

Press the closing button HC of the analog circuit breaker module 2DL, and the DC positive power is transmitted to the positive pole of the action coil of the connecting relay 2DL-SW through the closing button HC and the relay 2DL-SW normally closed contact 3-2 in the analog circuit breaker module 2DL. The 1-terminal contact of the relay 2DL-SW connects the 6-terminal contact of the relay 2DL-SW to the negative pole of the action coil of the relay 1DL-SW to form a DC circuit; Terminal 3-2 is disconnected; the normally open contact at terminal 4-5 is turned on; the normally open contact at terminal 8-9 is turned on;

The positive direct current is transmitted to terminal 1 of the relay 2DL-KⅠ and relay 2DL-KⅡ of the analog circuit breaker module 2DL through the circuit breaker "ZLKK" and the 4-5 terminal contact of the relay 2DL-SW in the analog circuit breaker module 2DL; Relay 2DL-KⅠ and relay 2DL-KⅡ action coil negative pole with DC negative, energized relay 2DL-KⅠ and relay 2DL-KⅡ flip:

The normally open contact of the a1-a2 end of the relay 2DL-KⅠ is turned on, and the DC positive current carried by the a1 end of the relay 2DL-KⅠ is connected to the red light D1, and the red light D1 turns from off to bright; at the same time, the green light D2 turns from on to off ; The normally open contact of the b1-b2 end of the relay 2DL-KⅠ is turned on; the b1 end is connected to the "1DL-GY2" in the analog circuit breaker module 1DL through the terminal 2DL-GY1, and the b2 end is connected through the terminal 2DL-GY2, the experimental switch " AN3" is transmitted to the terminal 5DL-GY1 in the analog circuit breaker module 5DL; the DC positive power transmitted by the relay "1DL-GY2" terminal in the analog circuit breaker module 1DL passes through the conduction terminal "2DL-GY1" in the analog circuit breaker module 2DL ", "2DL-GY2" and experimental switch "AN3" are transmitted to "5DL-GY1" in the analog circuit breaker module 5DL, and the circuit is smooth;

3. Set the manual operation analog circuit breaker module 3DL to close state:

Press the closing button HC of the analog circuit breaker module 3DL, and the DC positive power is transmitted to the connection relay "3DL-SW through the closing button HC and the double-position relay 3DL-SW normally closed contact 3-2 in the analog circuit breaker module 3DL. 1-terminal contact point of the positive pole of the action coil; the 6-terminal contact point of the relay 3DL-SW is connected to the negative pole of the action coil of the relay "3DL-SW" to form a DC circuit; the two-position relay "3DL-SW" acts, and each switch contact of the relay is turned on and off : The normally closed contact 3-2 of the relay 3DL-SW is disconnected; the normally open contact of the 4-5 terminal is conducted; the normally open contact of the 8-9 terminal is conducted;

The DC positive power is transmitted to the positive coil of the intermediate relay "3DL-KⅠ" and intermediate relay "3DL-KⅡ" of the analog circuit breaker module 3DL through the air switch "ZLKK" and the conduction contacts of terminals 4-5 in the relay "3DL-SW". The terminal 1 of the relay "3DL-KⅠ" and the relay "3DL-KⅡ" action coil negative with DC negative power, the relay "3DL-KⅠ" and the relay "3DL-KⅡ" flip:

The normally open contacts of the a1-a2 terminals of the intermediate relay 3DL-KⅠ are turned on, and the DC positive current carried by the a1 terminal of the relay 3DL-KⅠ is connected to the red light D1, and the red light D1 turns from off to bright; at the same time, the green light D2 turns from on to off; the normally open contacts of the b1-b2 terminals of the relay 3DL-KⅠ are turned on; the b1 terminal is connected to the experimental switch "AN2" through the terminal "3DL-GY1", and the b2 terminal is connected to "3DL-GY2"; The circuit breaker, experimental switch "AN2", and the conduction terminal "3DL-GY1" and "3DL-GY2" in the analog circuit breaker module 3DL are transmitted to the terminal "4DL-GY1" in the analog circuit breaker module 4DL;

The intermediate relay 3DL-KⅡ acts, the normally open contacts of the terminals a1-a2 of the relay 3DL-KⅡ are turned on, and the terminals a1 and a2 are respectively connected to the terminals 3DL-801Ⅰ and 3DL-802Ⅰ of the standby automatic switching device, and the connecting line of the standby automatic switching device "3DL-801Ⅰ" and "3DL-802Ⅰ" conduction;

At the same time, the normally closed contact between the terminals a1-a3 of the relay 3DL-KⅡ is disconnected, and the terminals 3DL-803Ⅰ and 3DL-801Ⅰ of the standby automatic switching device connected to the terminal a3 are disconnected;

At the same time, the normally open contact between the terminals b1-b2 of the relay 3DL-KⅡ is conducted, and the connection line "3DL-801Ⅱ" and "3DL-802Ⅱ" of the tester and the automatic switching device are connected;

At the same time, the normally closed contact between the terminals b1-b3 of the relay 3DL-KⅡ is disconnected, and the connection line "3DL-801Ⅱ" and "3DL-803Ⅱ" between the tester and the automatic switching device are disconnected;

4. Set the manual operation analog circuit breaker module 4DL to the closed state:

Press the closing button HC of the analog circuit breaker module 4DL, and the DC positive power is transmitted to the positive pole of the action coil of the connecting relay 4DL-SW through the closing button HC and the relay 4DL-SW normally closed contact 3-2 in the analog circuit breaker module 4DL. The 1-terminal contact point of the relay 4DL-SW connects the 6-terminal contact point of the relay 4DL-SW to the negative pole of the action coil of the relay 4DL-SW to form a DC circuit; Terminal 3-2 is disconnected; the normally open contact at terminal 4-5 is turned on; the normally open contact at terminal 8-9 is turned on;

The DC positive power is transmitted to the coil positive terminals of the relay 4DL-KⅠ and relay 4DL-KⅡ of the analog circuit breaker module 4DL through the air switch "ZLKK" and the 4-5 terminal conducting contact of the relay 4DL-SW in the analog circuit breaker module 4DL 1; Relay 4DL-KⅠ and relay 4DL-KⅡ action coil negative terminal 2 with DC negative power, energized relay 4DL-KⅠ and relay 4DL-KⅡ flip:

The normally open contact of the a1-a2 terminal of the relay 4DL-KⅠ is turned on, and the DC positive current carried by the a1 terminal of the relay 4DL-KⅠ is connected to the red light D1, and the red light D1 turns from off to bright; at the same time, the green light D2 turns from on to off ; The normally open contact of the b1-b2 end of the relay 4DL-KⅠ is turned on; the b1 end is connected to the "3DL-GY2" in the analog circuit breaker module 3DL through the terminal 4DL-GY1, and the b2 end is connected through the terminal 4DL-GY2, the experimental switch " AN4" is transmitted to the terminal 5DL-GY2 in the analog circuit breaker module 5DL; the DC positive power transmitted by the relay "3DL-GY2" terminal in the analog circuit breaker module 3DL passes through the conduction terminal "4DL-GY1" in the analog circuit breaker module 4DL ", "4DL-GY2" and experimental switch "AN4" are transmitted to "5DL-GY2" in the analog circuit breaker module 5DL, and the circuit is smooth;

5. Simulate the action of the transformer module

1) Analog transformer module "1PT": DC positive electricity enters the coil of relay "1PT-I" and relay "1PT-II" of analog transformer module "1PT" through circuit breaker "ZLKK" and experimental switch "AN1" The positive pole constitutes a DC circuit, the intermediate relays "1PT-I" and "1PT-II" of the analog transformer module "1PT" act, and the on-off status of each contact of the relay is reversed; the normally open contact between a1-a2 of the relay 1PT-I point conduction, the yellow light "1PT-D3" turns from off to on; The normally open contact between "a1-a2" of Ⅱ is conducted, and the voltage of phase B is transmitted to the standby automatic switching device through the test line; the normally open contact between "b1-b2" of "1PT-Ⅱ" is conducted, and the voltage of phase C is transmitted through The test line is transmitted to the standby self-injection device;

2) Analog transformer module "2PT": DC positive electricity enters the coil of the relay "2PT-I" and relay "2PT-II" of the analog transformer module "2PT" through the circuit breaker "ZLKK" and the experimental switch "AN2" Positive pole; when the negative poles of the two relay coils are long, there is DC negative electricity to form a DC circuit, and the intermediate relays "2PT-I" and "2PT-II" of the simulated transformer module "2PT" act, and the on-off status of each contact of the relay is reversed; "2PT The normally open contact between "a1-a2" of -I is turned on, and the yellow light "2PT-D3" changes from off to bright; the normally open contact between "b1-b2" of "2PT-I" is turned on, and the voltage of phase A is The test line is transmitted to the standby automatic switching device; the normally open contact between "a1-a2 of 2PT-II" is turned on, and the phase B voltage is transmitted to the standby automatic switching device through the test line; the "b1-b2 of 2PT-Ⅱ" The normally open contacts between are turned on, and the C-phase voltage is transmitted to the standby self-injection device through the test line;

3), Simulated transformer module "3PT": DC positive electricity passes through air switch "ZLKK", experimental switch "AN1", "1DL-GY1" and "1DL-GY2" conduction contacts in simulated circuit breaker module 1DL, simulated The conductive contacts of "2DL-GY1" and "2DL-GY2" in the circuit breaker module 2DL, and the experimental switch "AN3" enter the coil positive poles of the analog transformer module "3PT" relay "3PT-I" and relay "3PT-II" ;The two relay coil negative poles have a DC negative current to form a DC circuit when the negative poles of the two relay coils are long, and the intermediate relays "3PT-I" and "3PT-II" of the simulated transformer module "3PT" act, and the on-off status of each contact of the relay is reversed; the relay "3PT The normally open contact between "a1-a2" of -I conducts, and the yellow light "3PT-D3" changes from off to bright; the normally open contact between b1-b2 of relay "3PT-I" conducts, and the voltage of phase A It is transmitted to the standby automatic switching device through the test line; the normally open contact between "a1-a2 of 3PT-Ⅱ" is turned on, and the B-phase voltage is transmitted to the standby automatic switching device through the test line; "b1-b2 of 3PT-Ⅱ" The normally open contacts between them are turned on, and the phase C voltage is transmitted to the standby self-injection device through the test line;

4), Simulate the transformer module "4PT": DC positive electricity passes through the circuit breaker "ZLKK", the experimental switch "AN2", the conduction contacts of "3DL-GY1" and "3DL-GY2" in the simulated circuit breaker module 3DL, simulated The conductive contacts of "4DL-GY1" and "4DL-GY2" in the circuit breaker module 4DL, and the experimental switch "AN4" enter the coils of the relay "4PT-I" and relay "4PT-II" of the analog transformer module "4PT". Positive pole; the negative poles of the two relay coils carry DC negative electricity for a long time, forming a DC circuit, simulating the action of the intermediate relays "4PT-I" and "4PT-II" of the transformer module "4PT", and the on-off status of each contact of the relay is reversed; " The normally open contact between "a1-a2" of 4PT-I conducts, and the yellow light "4PT-D3" changes from off to bright; the normally open contact between "b1-b2" of "4PT-I" conducts, and the voltage of phase A It is transmitted to the standby automatic switching device through the test line; the normally open contact between "a1-a2 of 4PT-Ⅱ" is turned on, and the B-phase voltage is transmitted to the standby automatic switching device through the test line; "b1-b2 of 4PT-Ⅱ" The normally open contacts between them are turned on, and the phase C voltage is transmitted to the standby self-injection device through the test line;

Step 3: Test status:

1. Push the experimental switch "AN3" to the off position, and the positive electricity of the experimental switch "AN3" disappears through the contact between "5DL-GY1" and "5DL-GY2" in the simulated circuit breaker module 5DL. , The positive electricity disappears from the experimental switch "AN4" to "4DL-GY2" in the simulated circuit breaker module 4DL;

2. Action of the analog transformer module "3PT": the DC positive channel is disconnected, the analog transformer module "3PT" has no DC positive input, and the intermediate relays "3PT-I" and "3PT-" of the analog transformer module "3PT" Ⅱ" reset, the on-off status of each contact of the relay is reversed; the yellow light "3PT-D3" changes from on to off;

The normally open contact between "b1-b2 of 3PT-I" is disconnected, and the output of phase A voltage stops;

The normally open contact between "a1-a2 of 3PT-Ⅱ" is disconnected, and the output of phase B voltage stops;

The normally open contact between "b1-b2 of 3PT-Ⅱ" is disconnected, and the output of phase C voltage stops;

Step 4: Detect the logical action process of the standby automatic switching device:

1. The detection equipment automatic switching device is divided into analog circuit breaker module 1DL;

The standby self-injection device sends a DC positive signal to the tester through the test line "1DL33", and the DC positive power is transmitted to the contact of the relay "1DL-SW terminal 9" in the analog circuit breaker module 1DL, and the relay "1DL-SW" closed by the action The 9-8 normally open contacts are transmitted to the connection relay "1DL-SW" with 7 contacts on the positive pole of the reset coil, and 12 contacts on the negative pole of the reset coil with DC negative electricity to form a DC circuit, which simulates the reset of the two-position relay "1DL-SW" in the circuit breaker module 1DL. , the on-off status of each contact of the relay is reversed; the relay "1DL-SW" in the analog circuit breaker module 1DL loses the DC positive reset; the normally open contact between "4-5 of 1DL-SW" is disconnected; "1DL-SW The normally open contact between 8-9" is disconnected, and the relays "1DL-KⅠ" and "1DL-KⅡ" are reset; the red light "1DL-D1" turns from on to off; the green light "1DL-D2" turns from off to on ;The normally open contact between "a1-a2 of 1DL-KⅡ" is disconnected, and the connection line "1DL-801Ⅰ" and "1DL-802Ⅰ" of the standby automatic switching device are disconnected; between a1-a3 of "1DL-KⅡ" The normally closed contact is closed, the connecting line "1DL-801Ⅰ" and "1DL-803Ⅰ" of the standby automatic switching device are connected; "1DL-801Ⅱ" and "1DL-802Ⅱ" are disconnected; the normally closed contact between b1-b3 of "1DL-KⅡ" is closed, and the connection line "1DL-801Ⅱ" and "1DL-803Ⅱ" of the standby self-injection device are connected ;

2. Detect the working status of the standby automatic switching device and the simulated circuit breaker module 5DL;

The standby self-injection device sends a DC positive signal to the tester through the test line "5DL3", and the DC positive power is transmitted to the connection through the normally closed contact between the 3-2 contacts of the relay "5DL-SW" in the analog circuit breaker module 5DL. 1 contact of the positive pole of the action coil of the relay "5DL-SW", and 6 contacts of the negative pole of the action coil have DC negative electricity, forming a DC circuit, simulating the action of the two-position relay "5DL-SW" in the circuit breaker module 5DL, and the on-off status of each contact of the relay is reversed ;The normally closed contact between "2-3 of 5DL-SW" is disconnected; the normally open contact between "4-5 of 5DL-SW" is turned on; the normally open between "5DL-SW:8-9" contact conduction;

The DC positive power is transmitted to the terminal of the intermediate relay "5DL-KⅠ" and "5DL-KⅡ" of the analog circuit breaker module 5DL connected to the positive pole of the coil through the conducting contacts of the air switch "ZLKK" and "4-5 of 5DL-SW" 1", the 2 contacts of the negative pole of the coil carry DC negative electricity, forming a DC circuit, simulating the action of the intermediate relays "5DL-KⅠ" and "5DL-KⅡ" of the circuit breaker module 5DL, and the on-off status of each contact of the relay is reversed;

The normally open contact between a1-a2 of the relay "5DL-KⅠ" conducts, the red light "5DL-D1" changes from off to bright; the green light "5DL-D2" changes from bright to off; "5DL-KⅠ's b1-b2 "The normally open contact between "is turned on, and the terminals "3DL-GY1" and "3DL-GY2" are turned on; the positive DC current passes through the circuit breaker, the experimental switch "AN2", and "3DL-GY1" in the analog circuit breaker module 3DL Conducting contact with "3DL-GY2", "4DL-GY1" and "4DL-GY2" conducting contact in analog circuit breaker module 4DL, "AN4", "5DL-GY1" and "5DL-GY1" in analog circuit breaker module 5L 5DL-GY2" conduction contact is transferred to "AN3";

The relay "5DL-KⅡ" acts, the normally open contact between a1-a2 of the relay "5DL-KⅡ" conducts, and the connection line "5DL-801Ⅰ" and "5DL-802Ⅰ" of the tester and the automatic switching device are connected ;The normally closed contact between "a1-a3 of 5DL-KⅡ" is disconnected, and the connection line "5DL-801Ⅰ" and "5DL-803Ⅰ" between the tester and the automatic switching device are disconnected; "b1-a3 of 5DL-KⅡ" The normally open contact between b2" is conducting, the connection line "5DL-801Ⅱ" and "5DL-802Ⅱ" between the tester and the automatic switching device are conducting; the normally closed contact between "5DL-KⅡ b1-b3" Disconnect, disconnect the connection line "5DL-801Ⅱ" and "5DL-803Ⅱ" between the tester and the automatic switching device;

3. Simulate the action state of the transformer module:

Simulated transformer module "3PT": DC positive current passes through air switch "ZLKK", experimental switch "AN2", conductive contact of "3DL-GY1" and "3DL-GY2" in simulated circuit breaker module 3DL, simulated circuit breaker The conducting contacts of "4DL-GY1" and "4DL-GY2" in module 4DL, the conducting contacts of "5DL-GY1" and "5DL-GY2" in the simulated circuit breaker module 5DL, and the experimental switch "AN4" enter the simulation The positive pole of the relay "3PT-I" of the transformer module "3PT" and the positive coil of the relay "3PT-II"; the negative poles of the two relay coils carry DC negative electricity for a long time, forming a DC circuit, simulating the intermediate relay of the transformer module "3PT" 3PT-I" and "3PT-II" act, the on-off status of each contact of the relay is reversed; the normally open contact between a1-a2 of "3PT-I" conducts, and the yellow light "3PT-D3" turns from off to on ; The normally open contact between "b1-b2 of 3PT-I" is conducting, and the phase A voltage is transmitted to the standby self-injection device through the test line; the normally open contact between "a1-a2 of 3PT-II" is conducting, The phase B voltage is transmitted to the standby automatic switching device through the test line; the normally open contact between "3PT-II b1-b2" is turned on, and the C phase voltage is transmitted to the standby automatic switching device through the test line;

Step 5: The logic function of the detected standby automatic switching device is correct and meets the requirements, and the tested standby automatic switching device is put into operation.

The present invention adopts above-mentioned technical scheme, has following advantages compared with prior art:

1. It avoids complicated wiring, makes the wiring of the backup self-injection verification device simple and clear, and can effectively avoid the greater risk of safety in the process of disconnecting the wiring.

2. There is a special control program, which can simulate the function of the bus connection of the transmission line in the standby and automatic switching.

3. Through the control part, it is convenient to test the protection setting value of the automatic switching protection device, which is easy to operate and reliable in result.

4. It can meet the inspection work of the automatic switching device of the bridge line in the power system, which greatly provides the test flexibility and improves the production efficiency.

Description of drawings

Figure 1 is the self-injection circuit diagram of the bus tie switch on the high voltage side;

Figure 2 is a block diagram of the working principle of the portable self-input calibrator;

Figure 3 is a circuit diagram of the working principle of the analog circuit breaker DL module;

Figure 4 is a circuit diagram of the working principle of the analog circuit breaker PT module;

Figure 5 is a panel diagram of the transmission and transformation circuit for simulating the primary system pipe network:

Detailed ways

As shown in Figures 1, 2, 3, 4, and 5: a logic test method for checking the automatic switching mode of the bus tie switch on the high-voltage side. The steps are as follows:

The first step: tester test line access:

Insert the aviation plug side of the tester test cable into the "operation" and "signal" jacks of each analog circuit breaker module. On the other side, connect "DL1", "DL3" and "DL33" of the analog circuit breaker module 1DL to the "common terminal", "combined signal terminal" and "opening terminal" of the 1# incoming circuit breaker operation terminal of the standby automatic switching device respectively. "Signal terminal"; "801Ⅰ", "802Ⅰ", "803Ⅰ" are respectively connected to the "common terminal", "signal terminal" and "signal terminal" of the signal terminal of the 1# incoming circuit breaker of the standby automatic switching device. The other two short circuit breaker modules are the same as above, and the corresponding relationship is that the analog circuit breaker module 3DL corresponds to the 2# incoming line circuit breaker, and the analog circuit breaker module 5DL corresponds to the line bus tie circuit breaker.

The simulated circuit breaker module 2DL and the simulated circuit breaker module 4DL are not connected to the standby automatic switching device.

The second step: the initial state of the experiment:

Turn the power switching handle to the "device power" position, and use the DC power provided by the tester during the test. And push the DC circuit breaker "ZLKK" and AC circuit breaker "JLKK" on the device to the conduction position.

Push the experimental switches "AN1", "AN2", "AN3", "AN4" to the conduction position.

The experiment needs to adjust the simulated circuit breaker module 1DL, the simulated circuit breaker module 2DL, the simulated circuit breaker module 3DL, and the simulated circuit breaker module 4DL to the closing position.

1. Manually operate the simulated circuit breaker module 1DL to close;

Press the closing button "1DL-HC" of the simulated circuit breaker module 1DL, and the DC positive current passes through the button "1DL-HC" to the "1DL-SW: 3" contact of the simulated circuit breaker module 1DL. The "1DL-SW: 3" contact and the "1DL-SW: 2" contact in the analog circuit breaker module 1DL are normally closed contacts, and the DC positive current passes through and is transmitted to the "1DL-SW: 1" in the analog circuit breaker module 1DL. ” contact, which is connected to the positive pole of the action coil of the relay “1DL-SW”. The "1DL-SW: 6" contact in the simulated circuit breaker module 1DL has DC negative electricity, and the contact is connected to the negative pole of the action coil of the relay "1DL-SW". Constitute a DC circuit, simulate the action of the two-position relay "1DL-SW" in the circuit breaker module 1DL, and reverse the on-off status of each contact of the relay. The normally closed contact between "1DL-SW: 2" and "1DL-SW: 3" is disconnected; the normally open contact between "1DL-SW: 4" and "1DL-SW: 5" is connected; "1DL The normally open contact between -SW: 8" and "1DL-SW: 9" is conducting.

The normally open contact between "1DL-SW: 4" and "1DL-SW: 5" in the simulated circuit breaker module 1DL conducts, and the DC positive current passes through the circuit breaker "ZLKK" and "1DL-SW: 4" and "1DL The contact between -SW: 5" is transmitted to the terminal "1DL-KⅠ: 1" of the intermediate relay "1DL-KⅠ" of the analog circuit breaker module 1DL and the terminal "1DL-KⅡ: 1" of "1DL-KⅡ".

The "1DL-KI: 1" terminal in the analog circuit breaker module 1DL is connected to the positive pole of the relay "1DL-KI" coil. The "1DL-KI: 2" contact in the simulated circuit breaker module 1DL has DC negative electricity, and the contact is connected to the negative pole of the action coil of the relay "1DL-KI". Constitute a DC circuit, simulate the action of the intermediate relay "1DL-KI" in the circuit breaker module 1DL, and reverse the on-off status of each contact of the relay. The normally open contact between "1DL-KⅠ: a1" and "1DL-KⅠ: a2" conducts, and the DC positive electricity carried by "1DL-KI: a1" connects to the red light "1DL-D1", forming a negative DC current. circuit, the red light "1DL-D1" turns from off to on; the normally closed contact between "1DL-KⅠ:a1" and "1DL-KⅠ:a3" is disconnected, and "1DL-KⅠ:a3" loses DC positive power, The circuit where the green light "1DL-D2" is located is broken, the green light "1DL-D2" changes from on to off; Open, experimental switch "AN1", contact between "1DL-GY1" and "1DL-GY2" in the analog circuit breaker module 1DL, and transmit to "2DL-GY1" in the analog circuit breaker module 2DL.

The "1DL-KⅡ:1" terminal in the analog circuit breaker module 1DL is connected to the positive pole of the relay "1DL-KⅡ" coil. The "1DL-KⅡ:2" contact in the simulated circuit breaker module 1DL has DC negative electricity, and the contact is connected to the negative pole of the action coil of the relay "1DL-KⅡ". Constitute a DC circuit, simulate the action of the intermediate relay "1DL-KⅡ" in the circuit breaker module 1DL, and reverse the on-off status of each contact of the relay. The normally open contact between "1DL-KⅡ: a1" and "1DL-KⅡ: a2" is conducting, and the connection line "1DL-801Ⅰ" and "1DL-802Ⅰ" connecting the tester and the standby automatic switching device are conducting; "1DL- The normally closed contact between KⅡ: a1" and "1DL-KⅡ: a3" is disconnected, and the connection line "1DL-801Ⅰ" and "1DL-803Ⅰ" between the tester and the standby automatic switching device are disconnected; "1DL-KⅡ: b1 " and "1DL-KⅡ: b2" are normally open contacts, and the connection line "1DL-801Ⅱ" and "1DL-802Ⅱ" between the tester and the standby self-injection device are connected; "1DL-KⅡ: b1" and " 1DL-KⅡ: The normally closed contact between b3" is disconnected, and the connection line "1DL-801Ⅱ" and "1DL-803Ⅱ" between the tester and the standby automatic switching device are disconnected.

2. Manually operate the simulated circuit breaker module 2DL to close;

Press the closing button "2DL-HC" of the simulated circuit breaker module 2DL, and the DC positive current passes through the button "2DL-HC" to the "2DL-SW: 3" contact of the simulated circuit breaker module 2DL. The "2DL-SW: 3" contact and the "2DL-SW: 2" contact in the analog circuit breaker module 2DL are normally closed contacts, and the DC positive current passes through and is transmitted to the "2DL-SW: 1" in the analog circuit breaker module 2DL. ” contact, which is connected to the positive pole of the action coil of the relay “2DL-SW”. The "2DL-SW: 6" contact in the simulated circuit breaker module 2DL has DC negative power, and the contact is connected to the negative pole of the action coil of the relay "2DL-SW". Constitute a DC circuit, simulate the action of the two-position relay "2DL-SW" in the circuit breaker module 2DL, and reverse the on-off status of each contact of the relay. The normally closed contact between "2DL-SW: 2" and "2DL-SW: 3" is disconnected; the normally open contact between "2DL-SW: 4" and "2DL-SW: 5" is connected; "2DL The normally open contact between -SW: 8" and "2DL-SW: 9" is conducting.

The normally open contact between "2DL-SW: 4" and "2DL-SW: 5" in the simulated circuit breaker module 2DL conducts, and the positive DC current passes through the circuit breaker "ZLKK" and "2DL-SW: 4" and "2DL The contact between -SW: 5" is transmitted to the terminal "2DL-KⅠ: 1" of the intermediate relay "2DL-KⅠ" of the analog circuit breaker module 2DL and the terminal "2DL-KⅡ: 1" of "2DL-KⅡ".

The "2DL-KI: 1" terminal in the analog circuit breaker module 2DL is connected to the positive pole of the relay "2DL-KI" coil. The "2DL-KI: 2" contact in the simulated circuit breaker module 2DL has DC negative electricity, and the contact is connected to the negative pole of the action coil of the relay "2DL-KI". Constitute a DC circuit, simulate the action of the intermediate relay "2DL-KI" in the circuit breaker module 2DL, and flip the contacts of the relay on and off. The normally open contact between "2DL-KⅠ: a1" and "2DL-KⅠ: a2" conducts, and the DC positive electricity carried by "2DL-KI: a1" connects to the red light "2DL-D1", forming a negative DC current. circuit, the red light "2DL-D1" turns from off to on; the normally closed contact between "2DL-KⅠ:a1" and "2DL-KⅠ:a3" is disconnected, and "2DL-KⅠ:a3" loses DC positive power, The circuit where the green light "2DL-D2" is located is broken, and the green light "2DL-D2" changes from on to off; The "1DL-GY2" terminal in 1DL passes through the contact between "2DL-GY1" and "2DL-GY2" in the analog circuit breaker module 2DL, and the experimental switch "AN3", to the "5DL-GY1" in the analog circuit breaker module 5DL. The circuit is smooth.

3. Manually operate the simulated circuit breaker module 3DL to close;

Press the closing button "3DL-HC" of the simulated circuit breaker module 3DL, and the DC positive current passes through the button "3DL-HC" to the "3DL-SW: 3" contact of the simulated circuit breaker module 3DL. The "3DL-SW: 3" contact and the "3DL-SW: 2" contact in the analog circuit breaker module 3DL are normally closed contacts, and the positive DC current passes through and is transmitted to the "3DL-SW: 1" in the analog circuit breaker module 3DL. ” contact, which is connected to the positive pole of the action coil of the relay “3DL-SW”. The "3DL-SW: 6" contact in the simulated circuit breaker module 3DL has DC negative electricity, and the contact is connected to the negative pole of the action coil of the relay "3DL-SW". Constitute a DC circuit, simulate the action of the two-position relay "3DL-SW" in the circuit breaker module 3DL, and reverse the on-off status of each contact of the relay. The normally closed contact between "3DL-SW: 2" and "3DL-SW: 3" is disconnected; the normally open contact between "3DL-SW: 4" and "3DL-SW: 5" is connected; "3DL The normally open contact between -SW: 8" and "3DL-SW: 9" is conducting.

The normally open contact between "3DL-SW: 4" and "3DL-SW: 5" in the simulated circuit breaker module 3DL conducts, and the DC positive current passes through the circuit breaker "ZLKK" and "3DL-SW: 4" and "3DL The contact between -SW: 5" is transmitted to the terminal "3DL-KⅠ: 1" of the intermediate relay "3DL-KⅠ" of the analog circuit breaker module 3DL and the terminal "3DL-KⅡ: 1" of "3DL-KⅡ".

The "3DL-KI: 1" terminal in the simulated circuit breaker module 3DL is connected to the positive pole of the relay "3DL-KI" coil. The "3DL-KI: 2" contact in the analog circuit breaker module 3DL has DC negative electricity, and the contact is connected to the negative pole of the action coil of the relay "3DL-KI". Constitute a DC circuit, simulate the action of the intermediate relay "3DL-KI" in the circuit breaker module 3DL, and reverse the on-off status of each contact of the relay. The normally open contact between "3DL-KⅠ: a1" and "3DL-KⅠ: a2" conducts, and the DC positive electricity carried by "3DL-KI: a1" connects to the red light "3DL-D1", forming a negative DC current. circuit, the red light "3DL-D1" turns from off to on; the normally closed contact between "3DL-KⅠ:a1" and "3DL-KⅠ:a3" is disconnected, and "3DL-KⅠ:a3" loses DC positive power, The circuit where the green light "3DL-D2" is located is broken, and the green light "3DL-D2" changes from on to off; Open, experimental switch "AN2", contact between "3DL-GY1" and "3DL-GY2" in the analog circuit breaker module 3DL, and transmit to "4DL-GY1" in the analog circuit breaker module 4DL.

The "3DL-KⅡ:1" terminal in the analog circuit breaker module 3DL is connected to the positive pole of the relay "3DL-KⅡ" coil. The “3DL-KⅡ: 2” contact in the simulated circuit breaker module 3DL has DC negative electricity, and the contact is connected to the negative pole of the action coil of the relay “3DL-KⅡ”. Constitute a DC circuit, simulate the action of the intermediate relay "3DL-KⅡ" in the circuit breaker module 3DL, and reverse the on-off status of each contact of the relay. The normally open contact between "3DL-KⅡ:a1" and "3DL-KⅡ:a2" is conducting, and the connection line "3DL-801Ⅰ" and "3DL-802Ⅰ" connecting the tester and the standby automatic switching device are conducting; "3DL- The normally closed contact between KⅡ: a1" and "3DL-KⅡ: a3" is disconnected, and the connection line "3DL-801Ⅰ" and "3DL-803Ⅰ" between the tester and the standby automatic switching device are disconnected; "3DL-KⅡ: b1 " and "3DL-KⅡ: b2" are normally open contacts, and the connection line "3DL-801Ⅱ" and "3DL-802Ⅱ" between the tester and the standby self-injection device are connected; "3DL-KⅡ: b1" and " 3DL-KⅡ: The normally closed contact between b3" is disconnected, and the connection line "3DL-801Ⅱ" and "3DL-803Ⅱ" between the tester and the standby automatic switching device are disconnected.

4. Manually operate the simulated circuit breaker module 4DL to close;

Press the closing button "4DL-HC" of the simulated circuit breaker module 4DL, and the DC positive current passes through the button "4DL-HC" to the "4DL-SW: 3" contact of the simulated circuit breaker module 4DL. The "4DL-SW: 3" contact and the "4DL-SW: 2" contact in the analog circuit breaker module 4DL are normally closed contacts, and the positive DC current passes through and is transmitted to the "4DL-SW: 1" in the analog circuit breaker module 4DL. ” contact, which is connected to the positive pole of the action coil of the relay “4DL-SW”. The "4DL-SW: 6" contact in the simulated circuit breaker module 4DL has DC negative electricity, and the contact is connected to the negative pole of the action coil of the relay "4DL-SW". Constitute a DC circuit, simulate the action of the two-position relay "4DL-SW" in the circuit breaker module 4DL, and reverse the on-off status of each contact of the relay. The normally closed contact between "4DL-SW: 2" and "4DL-SW: 3" is disconnected; the normally open contact between "4DL-SW: 4" and "4DL-SW: 5" is connected; "4DL The normally open contact between -SW: 8" and "4DL-SW: 9" is conducting.

The normally open contact between "4DL-SW: 4" and "4DL-SW: 5" in the simulated circuit breaker module 4DL conducts, and the DC positive current passes through the circuit breaker "ZLKK" and "4DL-SW: 4" and "4DL The contact between -SW: 5" is transmitted to the terminal "4DL-KⅠ: 1" of the intermediate relay "4DL-KⅠ" of the analog circuit breaker module 4DL and the terminal "4DL-KⅡ: 1" of "4DL-KⅡ".

The "4DL-KⅠ:1" terminal in the analog circuit breaker module 4DL is connected to the positive pole of the relay "4DL-KI" coil. The "4DL-KI: 2" contact in the simulated circuit breaker module 4DL has DC negative electricity, and the contact is connected to the negative pole of the action coil of the relay "4DL-KI". Constitute a DC circuit, simulate the action of the intermediate relay "4DL-KⅠ" in the circuit breaker module 4DL, and flip the contacts of the relay on and off. The normally open contact between "4DL-KⅠ: a1" and "4DL-KⅠ: a2" conducts, and the DC positive electricity carried by "4DL-KI: a1" connects to the red light "4DL-D1", forming a negative DC current. circuit, the red light "4DL-D1" turns from off to on; the normally closed contact between "4DL-KⅠ:a1" and "4DL-KⅠ:a3" is disconnected, and "4DL-KⅠ:a3" loses DC positive power, The circuit where the green light "4DL-D2" is located is broken, and the green light "4DL-D2" turns from on to off; The "3DL-GY2" terminal in the 3DL passes through the contact between "4DL-GY1" and "4DL-GY2" in the analog circuit breaker module 4DL, and the experimental switch "AN4", to the "5DL-GY2" in the analog circuit breaker module 5DL. The circuit is smooth.

5. Simulate the action of the transformer module:

Analog transformer module "1PT": DC positive electricity enters the terminal "1PT-YCDY" of the analog transformer module "1PT" through the circuit breaker "ZLKK" and the experimental switch "AN1", which is connected to the positive pole of the coil of the relay "1PT-I" And relay "1PT-Ⅱ" coil positive. The negative poles of the two relay coils carry DC negative electricity for a long time, forming a DC circuit, simulating the action of the intermediate relays 1PT-I and "1PT-II" in the transformer module "1PT", and the on-off status of each contact of the relay is reversed. "1PT-I : a1” and “1PT-I: a2” are connected normally open contacts, and the DC positive current carried by “1PT-I: a1” is connected to the yellow light “1PT-D3”, forming a circuit with the DC negative power, and the yellow light "1PT-D3" changes from off to bright; the normally open contact between "1PT-Ⅰ:b1" and "1PT-Ⅰ:b2" is turned on, and the voltage of phase A is transmitted to the standby automatic switching device through the test line; "1PT- The normally open contact between Ⅱ: a1" and "1PT-Ⅱ: a2" conducts, and the phase B voltage is transmitted to the standby automatic switching device through the test line; the connection between "1PT-Ⅱ: b1" and "1PT-Ⅱ: b2" The normally open contacts between the two are turned on, and the C-phase voltage is transmitted to the standby self-injection device through the test line.

Analog transformer module "2PT": DC positive electricity enters the terminal "2PT-YCDY" of the analog transformer module "2PT" through the circuit breaker "ZLKK" and the experimental switch "AN2", which is connected to the positive pole of the relay "2PT-I" coil And relay "2PT-Ⅱ" coil positive. The negative poles of the two relay coils carry negative DC electricity for a long time, forming a DC circuit, simulating the action of the intermediate relays 2PT-I and "2PT-II" in the transformer module "2PT", and the on-off status of each contact of the relay is reversed. "2PT-I : a1” and “2PT-I: a2” are connected normally open contacts, and the DC positive current carried by “2PT-I: a1” is connected to the yellow light “2PT-D3”, forming a circuit with the DC negative power, and the yellow light "2PT-D3" changes from off to bright; the normally open contact between "2PT-Ⅰ:b1" and "2PT-Ⅰ:b2" is turned on, and the voltage of phase A is transmitted to the standby self-injection device through the test line; "2PT- The normally open contact between Ⅱ: a1" and "2PT-Ⅱ: a2" conducts, and the phase B voltage is transmitted to the standby automatic switching device through the test line; the connection between "2PT-Ⅱ: b1" and "2PT-Ⅱ: b2" The normally open contacts between the two are turned on, and the C-phase voltage is transmitted to the standby self-injection device through the test line.

Simulated transformer module "3PT": positive direct current passes through air switch "ZLKK", experimental switch "AN1", contact between "1DL-GY1" and "1DL-GY2" in simulated circuit breaker module 1DL, simulated circuit breaker module The contact between "2DL-GY1" and "2DL-GY2" in 2DL, the experimental switch "AN3" enters the terminal "3PT-YCDY" of the analog transformer module "3PT", which is connected to the positive pole of the relay "3PT-I" coil And relay "3PT-Ⅱ" coil positive. The negative poles of the two relay coils carry negative DC electricity for a long time, forming a DC circuit, simulating the action of the intermediate relays 3PT-I and "3PT-II" in the transformer module "3PT", and the on-off status of each contact of the relay is reversed. "3PT-I : a1" and "3PT-I: a2" are connected normally open contacts, and the DC positive current carried by "3PT-I: a1" is connected to the yellow light "3PT-D3", forming a loop with the DC negative power, and the yellow light "3PT-D3" changes from off to bright; the normally open contact between "3PT-I: b1" and "3PT-I: b2" is turned on, and the phase A voltage is transmitted to the standby self-injection device through the test line; "3PT- The normally open contact between Ⅱ: a1" and "3PT-Ⅱ: a2" is conducting, and the phase B voltage is transmitted to the standby automatic switching device through the test line; the connection between "3PT-Ⅱ: b1" and "3PT-Ⅱ: b2" The normally open contacts between the two are turned on, and the C-phase voltage is transmitted to the standby self-injection device through the test line.

Simulated transformer module "4PT": DC positive electricity passes through air switch "ZLKK", experimental switch "AN2", contact between "3DL-GY1" and "3DL-GY2" in simulated circuit breaker module 3DL, simulated circuit breaker module The contact between "4DL-GY1" and "4DL-GY2" in 4DL, the experimental switch "AN4" enters the terminal "4PT-YCDY" of the analog transformer module "4PT", which is connected to the positive pole of the relay "4PT-I" coil And relay "4PT-Ⅱ" coil positive. The negative poles of the two relay coils carry negative DC electricity for a long time, forming a DC circuit, simulating the action of the intermediate relays 4PT-I and "4PT-II" in the transformer module "4PT", and the on-off status of each contact of the relay is reversed. "4PT-I : a1” and “4PT-I: a2” are connected normally open contacts, and the DC positive current carried by “4PT-I: a1” is connected to the yellow light “4PT-D3”, forming a circuit with the DC negative power, and the yellow light "4PT-D3" changes from off to bright; the normally open contact between "4PT-Ⅰ:b1" and "4PT-Ⅰ:b2" is turned on, and the voltage of phase A is transmitted to the standby automatic switching device through the test line; "4PT- The normally open contact between Ⅱ: a1" and "4PT-Ⅱ: a2" is conducting, and the phase B voltage is transmitted to the standby automatic switching device through the test line; the connection between "4PT-Ⅱ: b1" and "4PT-Ⅱ: b2" The normally open contacts between the two are turned on, and the C-phase voltage is transmitted to the standby self-injection device through the test line.

Step 3: Test status:

Push the experimental switch "AN3" to the off position. The positive electricity of the experimental switch "AN3" disappears through the contacts of "5DL-GY1" in the simulated circuit breaker module 5DL.

Simulated transformer module "3PT": DC positive current channel is disconnected, terminal "3PT-YCDY" of simulated transformer module "3PT" has no DC positive power input, intermediate relay 3PT-I" and "3PT-Ⅱ" resets, and the on-off status of each contact of the relay is reversed. The normally open contact between "3PT-Ⅰ: a1" and "3PT-Ⅰ: a2" is disconnected, and the yellow light "3PT-D3" has no DC positive Electric input, the yellow light "3PT-D3" changes from on to off; the normally open contact between "3PT-Ⅰ:b1" and "3PT-Ⅰ:b2" is disconnected, and the output of phase A voltage stops; "3PT-Ⅱ: The normally open contact between a1" and "3PT-Ⅱ: a2" is disconnected, and the B-phase voltage stops outputting; the normally open contact between "3PT-Ⅱ: b1" and "3PT-Ⅱ: b2" is disconnected, C Phase voltage output stops.

Step 4: Prepare the action process of the self-injection device:

1. The analog circuit breaker module 1DL for the standby automatic switching device;

The standby self-injection device sends a DC positive signal to the tester through the test line "1DL33", and the DC positive signal is transmitted to the "1DL-SW: 9" contact in the analog circuit breaker module 1DL. The "1DL-SW: 9" contact and the "1DL-SW: 8" contact in the analog circuit breaker module 1DL are normally open contacts. When the relay is activated, it is closed, and the positive DC current passes through, and is transmitted to the analog circuit breaker module 1DL. 1DL-SW: 7” contact, which is connected to the positive pole of the return coil of the relay “1DL-SW”. The "1DL-SW: 12" contact in the simulated circuit breaker module 1DL has DC negative power, and the contact is connected to the negative pole of the return coil of the relay "1DL-SW". Constitute a DC circuit, simulate the reset of the two-position relay "1DL-SW" in the circuit breaker module 1DL, and reverse the on-off status of each contact of the relay. The normally closed contact between "1DL-SW: 2" and "1DL-SW: 3" is closed; the normally open contact between "1DL-SW: 4" and "1DL-SW: 5" is open; "1DL-SW: 5" The normally open contact between SW: 8" and "1DL-SW: 9" is broken.

The normally open contact between "1DL-SW: 4" and "1DL-SW: 5" in the simulated circuit breaker module 1DL is disconnected, and the terminal "1DL-KⅠ" of the intermediate relay "1DL-KⅠ" of the simulated circuit breaker module 1DL: 1" and "1DL-KⅡ" terminal "1DL-KⅡ: 1" loses positive DC power, the relay resets, and the on-off status of each contact of the relay is reversed. The normally open contact between "1DL-KⅠ:a1" and "1DL-KⅠ:a2" is disconnected, "1DL-KⅠ:a2" loses DC positive power, and the circuit where the red light "1DL-D1" is located is broken, and the red light " 1DL-D1" turns from on to off; the normally closed contact between "1DL-KⅠ: a1" and "1DL-KⅠ: a3" is closed, and the positive DC current is connected to the green light "1DL-D2", forming a negative current with DC circuit, the green light "1DL-D2" turns from off to on; the normally open contact between "1DL-KⅠ:b1" and "1DL-KI:b2" is disconnected. The normally open contact between "1DL-KⅡ: a1" and "1DL-KⅡ: a2" is disconnected, and the connection line "1DL-801Ⅰ" and "1DL-802Ⅰ" between the tester and the standby automatic switching device are disconnected; "1DL- The normally closed contact between KⅡ: a1" and "1DL-KⅡ: a3" is closed, and the connection line "1DL-801Ⅰ" and "1DL-803Ⅰ" between the tester and the standby automatic switching device are connected; "1DL-KⅡ: b1" The normally open contact between "1DL-KⅡ:b2" and "1DL-KⅡ:b2" is disconnected, and the connection line "1DL-801Ⅱ" and "1DL-802Ⅱ" between the tester and the standby automatic switching device are disconnected; "1DL-KⅡ:b1" and "1DL -KⅡ: The normally closed contact between b3" is closed, and the connection line "1DL-801Ⅱ" and "1DL-803Ⅱ" between the tester and the automatic switching device are connected.

2. Standby automatic switching device and analog circuit breaker module 5DL;

The standby self-injection device sends a DC positive signal to the tester through the test line "5DL3", and the DC positive signal is transmitted to the "5DL-SW: 3" contact in the analog circuit breaker module 5DL. The "5DL-SW: 3" contact and the "5DL-SW: 2" contact in the analog circuit breaker module 5DL are normally closed contacts, and the positive DC current passes through and is transmitted to the "5DL-SW: 1" in the analog circuit breaker module 5DL. ” contact, which is connected to the positive pole of the action coil of the relay “5DL-SW”. The "5DL-SW: 6" contact in the simulated circuit breaker module 5DL has DC negative power, and the contact is connected to the negative pole of the action coil of the relay "5DL-SW". Constitute a DC circuit, simulate the action of the two-position relay "5DL-SW" in the circuit breaker module 5DL, and reverse the on-off status of each contact of the relay. The normally closed contact between "5DL-SW: 2" and "5DL-SW: 3" is disconnected; the normally open contact between "5DL-SW: 4" and "5DL-SW: 5" is connected; "5DL The normally open contact between -SW: 8" and "5DL-SW: 9" is conducting.

The normally open contact between "5DL-SW: 4" and "5DL-SW: 5" in the simulated circuit breaker module 5DL conducts, and the DC positive current passes through the circuit breaker "ZLKK" and "5DL-SW: 4" and "5DL The contact between -SW: 5" is transmitted to the terminal "5DL-KⅠ: 1" of the intermediate relay "5DL-KⅠ" of the analog circuit breaker module 5DL and the terminal "5DL-KⅡ: 1" of "5DL-KⅡ".

The "5DL-KI: 1" terminal in the analog circuit breaker module 5DL is connected to the positive pole of the relay "5DL-KI" coil. The “5DL-KI: 2” contact in the simulated circuit breaker module 5DL has DC negative electricity, and the contact is connected to the negative pole of the action coil of the relay “5DL-KI”. Constitute a DC circuit, simulate the action of the intermediate relay "5DL-KI" in the circuit breaker module 5DL, and reverse the on-off status of each contact of the relay. The normally open contact between "5DL-KⅠ: a1" and "5DL-KⅠ: a2" conducts, and the DC positive electricity carried by "5DL-KI: a1" connects to the red light "5DL-D1", forming a negative DC current. circuit, the red light "5DL-D1" turns from off to on; the normally closed contact between "5DL-KⅠ:a1" and "5DL-KⅠ:a3" is disconnected, and "5DL-KⅠ:a3" loses DC positive power, The circuit where the green light "5DL-D2" is located is broken, and the green light "5DL-D2" changes from on to off; Open, experimental switch "AN2", contact between "3DL-GY1" and "3DL-GY2" in the simulated circuit breaker module 3DL, contact between "4DL-GY1" and "4DL-GY2" in the simulated circuit breaker module 4DL point, "AN4", the contact between "5DL-GY1" and "5DL-GY2" in the analog circuit breaker module 5L, and transmit to "AN3".

The "5DL-KⅡ:1" terminal in the simulated circuit breaker module 5DL is connected to the positive pole of the relay "5DL-KⅡ" coil. The "5DL-KⅡ: 2" contact in the simulated circuit breaker module 5DL carries negative DC power, connects the negative pole of the action coil of the relay "5DL-KⅡ" to form a DC circuit, and simulates the action of the intermediate relay "5DL-KⅡ" of the circuit breaker module 5DL. Click on and off to flip. The normally open contact between "5DL-KⅡ: a1" and "5DL-KⅡ: a2" is conducting, and the connection line "5DL-801Ⅰ" and "5DL-802Ⅰ" connecting the tester and the standby automatic switching device are conducting; "5DL- KⅡ: a1" and "5DL-KⅡ: a3" normally closed contacts are disconnected, and the connection line "5DL-801Ⅰ" and "5DL-803Ⅰ" between the tester and the standby automatic switching device are disconnected; "5DL-KⅡ: b1" and The normally open contact between "5DL-KⅡ: b2" is conducting, and the connection line "5DL-801Ⅱ" and "5DL-802Ⅱ" between the tester and the standby automatic switching device are conducting; "5DL-KⅡ: b1" and "5DL- KⅡ: The normally closed contact between b3" is disconnected, and the connection line "5DL-801Ⅱ" and "5DL-803Ⅱ" between the tester and the standby automatic switching device are disconnected.

3. Simulate the action of the transformer module:

Simulated transformer module "3PT": positive direct current passes through air switch "ZLKK", experimental switch "AN2", contact between "3DL-GY1" and "3DL-GY2" in simulated circuit breaker module 3DL, simulated circuit breaker module The contact between "4DL-GY1" and "4DL-GY2" in 4DL, the experimental switch "AN4", and the contact between "5DL-GY1" and "5DL-GY2" in the analog circuit breaker module 5DL enter the analog transformer module The terminal "3PT-YCDY" of "3PT" is connected to the positive pole of the coil of the relay "3PT-I" and the positive pole of the coil of the relay "3PT-II". The negative poles of the two relay coils carry negative DC electricity for a long time, forming a DC circuit, simulating the action of the intermediate relays 3PT-I and "3PT-II" in the transformer module "3PT", and the on-off status of each contact of the relay is reversed. "3PT-I : a1" and "3PT-I: a2" are connected normally open contacts, and the DC positive current carried by "3PT-I: a1" is connected to the yellow light "3PT-D3", forming a loop with the DC negative power, and the yellow light "3PT-D3" changes from off to bright; the normally open contact between "3PT-I: b1" and "3PT-I: b2" is turned on, and the phase A voltage is transmitted to the standby self-injection device through the test line; "3PT- The normally open contact between Ⅱ: a1" and "3PT-Ⅱ: a2" is conducting, and the phase B voltage is transmitted to the standby automatic switching device through the test line; the connection between "3PT-Ⅱ: b1" and "3PT-Ⅱ: b2" The normally open contacts between the two are turned on, and the C-phase voltage is transmitted to the standby self-injection device through the test line.

Step 5: The self-switching logic function of the tested equipment meets the requirements correctly, and it can be put into operation.

Claims (1)

1. A kind of self-switching logical test method for checking the high-voltage side bus tie switch automatic switching mode, is characterized in that: its steps are as follows: The first step: tester test line access: Insert one side of the aviation plug of the test cable attached to the tester into the input "operation" jack of the simulated circuit breaker module 1DL, 3DL, 5DL of the tester, and the other side will simulate the input "operation" of the circuit breaker module 1DL, 3DL, 5DL "DL1", "DL3", and "DL33" are respectively connected to the "common terminal", "signal terminal" and "signal terminal" of the operating terminal of the 1# main transformer high-voltage side circuit breaker of the standby automatic switching device; the attached test line One side of the aviation plug of the cable is inserted into the output "signal" jack of the analog circuit breaker module 1DL, 3DL, 5DL, and the other side is connected to the "801I end", "802I end" and "802I end" of the analog circuit breaker module 1DL, 3DL, 5DL The "803I terminal" is respectively connected to the "common terminal", "signal terminal" and "signal terminal" of the signal terminal of the circuit breaker on the high voltage side of the 1# main transformer of the standby automatic switching device; so that the analog circuit breaker module 1DL of the tester corresponds to 1 #Main transformer high voltage side circuit breaker, analog circuit breaker module 3DL corresponds to 2# main transformer high voltage side circuit breaker, analog circuit breaker module 5DL corresponds to high voltage side line bus tie circuit breaker; The second step: the initial state of the experiment: Turn the power switch of the simulated circuit breaker modules 1DL to 5DL of the tester to the "Device Power" position, use the DC power provided by the tester during the test, and set the DC circuit breaker "ZLKK" and AC circuit breaker on the tester to Push "JLKK" to the conduction position; push the experimental switches "AN1", "AN2", "AN3" and "AN4" to the conduction position; simulate the circuit breaker module 1DL, the simulated circuit breaker module 2DL, and the simulated circuit breaker module 3DL and analog circuit breaker module 4DL are adjusted to the closing position; 1) Set the manual operation analog circuit breaker module 1DL to the closed state: Press the closing button HC of the analog circuit breaker module 1DL, and the DC positive power is transmitted to the connection relay "1DL-SW" through the closing button HC and the normally closed contact 3-2 of the relay 1DL-SW in the analog circuit breaker module 1DL. The 1-terminal contact point of the positive pole of the coil; the 6-terminal contact point in the relay 1DL-SW is connected to the negative pole of the relay "1DL-SW" action coil to form a DC circuit; the relay "1DL-SW" action, the switch contacts of the relay are turned on and off: The normally closed contact 3-2 of the SW is disconnected; the normally open contact of the 4-5 terminal is conducted; the normally open contact of the 8-9 terminal is conducted; The DC positive power is transmitted to the terminal 1 of the relay "1DL-KⅠ" of the analog circuit breaker module 1DL and the relay "1DL-KⅡ" through the open circuit breaker "ZLKK" and the 4-5 terminal contact of the relay "1DL-SW". The terminal 1 of the positive pole of the coil; the negative pole of the action coil of the relay "1DL-KⅠ" and the relay "1DL-KⅡ" carries a DC negative power, and the relay "1DL-KⅠ" and the relay "1DL-KⅡ" flip when the power is turned on: The normally open contact of the a1-a2 end of the relay 1DL-KⅠ is turned on, and the DC positive current carried by the a1 end of the relay 1DL-KⅠ is connected to the red light D1, and the red light D1 turns from off to bright; at the same time, the green light D2 turns from on to off ; The normally open contacts of the b1-b2 end of the relay 1DL-KⅠ are turned on; the b1 end is connected to the experimental switch "AN1" through the terminal "1DL-GY1", and the b2 end is connected to the "1DL-GY2" terminal; On, the experimental switch "AN1", the conduction terminals "1DL-GY1" and "1DL-GY2" in the analog circuit breaker module 1DL are transmitted to the connection terminal "2DL-GY1" in the analog circuit breaker module 2DL; The relay 1DL-KⅡ acts, the normally open contacts of the terminals a1-a2 of the relay 1DL-KⅡ are turned on, and the terminals a1 and a2 are respectively connected to the terminals 1DL-801Ⅰ and 1DL-802Ⅰ of the standby automatic switching device, and the connecting line of the standby automatic switching device "1DL-801Ⅰ" and "1DL-802Ⅰ" conduction; At the same time, the normally closed contact between the terminals a1-a3 of the relay 1DL-KⅡ is disconnected, and the terminals 1DL-803Ⅰ and 1DL-801Ⅰ of the standby automatic switching device connected to the terminal a3 are disconnected; At the same time, the normally open contact between the terminals b1-b2 of the relay 1DL-KⅡ is turned on, and the connection line "1DL-801Ⅱ" and "1DL-802Ⅱ" of the standby automatic switching device are turned on; At the same time, the normally closed contact between the terminals b1-b3 of the relay 1DL-KⅡ is disconnected, and the connection line "1DL-801Ⅱ" and "1DL-803Ⅱ" of the standby automatic switching device are disconnected; 2). Set the manual operation analog circuit breaker module 2DL to be closed: Press the closing button HC of the analog circuit breaker module 2DL, and the DC positive power is transmitted to the positive pole of the action coil of the connecting relay 2DL-SW through the closing button HC and the relay 2DL-SW normally closed contact 3-2 in the analog circuit breaker module 2DL. The 1-terminal contact of the relay 2DL-SW connects the 6-terminal contact of the relay 2DL-SW to the negative pole of the action coil of the relay 1DL-SW to form a DC circuit; Terminal 3-2 is disconnected; the normally open contact at terminal 4-5 is turned on; the normally open contact at terminal 8-9 is turned on; The positive direct current is transmitted to terminal 1 of the relay 2DL-KⅠ and relay 2DL-KⅡ of the analog circuit breaker module 2DL through the circuit breaker "ZLKK" and the 4-5 terminal contact of the relay 2DL-SW in the analog circuit breaker module 2DL; Relay 2DL-KⅠ and relay 2DL-KⅡ action coil negative pole with DC negative, energized relay 2DL-KⅠ and relay 2DL-KⅡ flip: The normally open contact of the a1-a2 end of the relay 2DL-KⅠ is turned on, and the DC positive current carried by the a1 end of the relay 2DL-KⅠ is connected to the red light D1, and the red light D1 turns from off to bright; at the same time, the green light D2 turns from on to off ; The normally open contact of the b1-b2 end of the relay 2DL-KⅠ is turned on; the b1 end is connected to the "1DL-GY2" in the analog circuit breaker module 1DL through the terminal 2DL-GY1, and the b2 end is connected through the terminal 2DL-GY2, the experimental switch " AN3" is transmitted to the terminal 5DL-GY1 in the analog circuit breaker module 5DL; the DC positive power transmitted by the relay "1DL-GY2" terminal in the analog circuit breaker module 1DL passes through the conduction terminal "2DL-GY1" in the analog circuit breaker module 2DL ", "2DL-GY2" and experimental switch "AN3" are transmitted to "5DL-GY1" in the analog circuit breaker module 5DL, and the circuit is smooth; 3). Set the manual operation analog circuit breaker module 3DL to be closed: Press the closing button HC of the analog circuit breaker module 3DL, and the DC positive power is transmitted to the connection relay "3DL-SW through the closing button HC and the double-position relay 3DL-SW normally closed contact 3-2 in the analog circuit breaker module 3DL. 1-terminal contact point of the positive pole of the action coil; the 6-terminal contact point of the relay 3DL-SW is connected to the negative pole of the action coil of the relay "3DL-SW" to form a DC circuit; the two-position relay "3DL-SW" acts, and each switch contact of the relay is turned on and off : The normally closed contact 3-2 of the relay 3DL-SW is disconnected; the normally open contact of the 4-5 terminal is conducted; the normally open contact of the 8-9 terminal is conducted; The DC positive power is transmitted to the positive coil of the intermediate relay "3DL-KⅠ" and intermediate relay "3DL-KⅡ" of the analog circuit breaker module 3DL through the air switch "ZLKK" and the conduction contacts of terminals 4-5 in the relay "3DL-SW". The terminal 1 of the relay "3DL-KⅠ" and the relay "3DL-KⅡ" action coil negative with DC negative power, the relay "3DL-KⅠ" and the relay "3DL-KⅡ" flip: The normally open contacts of the a1-a2 terminals of the intermediate relay 3DL-KⅠ are turned on, and the DC positive current carried by the a1 terminal of the relay 3DL-KⅠ is connected to the red light D1, and the red light D1 turns from off to bright; at the same time, the green light D2 turns from on to off; the normally open contacts of the b1-b2 terminals of the relay 3DL-KⅠ are turned on; the b1 terminal is connected to the experimental switch "AN2" through the terminal "3DL-GY1", and the b2 terminal is connected to "3DL-GY2"; The circuit breaker, experimental switch "AN2", and the conduction terminal "3DL-GY1" and "3DL-GY2" in the analog circuit breaker module 3DL are transmitted to the terminal "4DL-GY1" in the analog circuit breaker module 4DL; The intermediate relay 3DL-KⅡ acts, the normally open contacts of the terminals a1-a2 of the relay 3DL-KⅡ are turned on, and the terminals a1 and a2 are respectively connected to the terminals 3DL-801Ⅰ and 3DL-802Ⅰ of the standby automatic switching device, and the connecting line of the standby automatic switching device "3DL-801Ⅰ" and "3DL-802Ⅰ" conduction; At the same time, the normally closed contact between the terminals a1-a3 of the relay 3DL-KⅡ is disconnected, and the terminals 3DL-803Ⅰ and 3DL-801Ⅰ of the standby automatic switching device connected to the terminal a3 are disconnected; At the same time, the normally open contact between the terminals b1-b2 of the relay 3DL-KⅡ is conducted, and the connection line "3DL-801Ⅱ" and "3DL-802Ⅱ" of the tester and the automatic switching device are connected; At the same time, the normally closed contact between the terminals b1-b3 of the relay 3DL-KⅡ is disconnected, and the connection line "3DL-801Ⅱ" and "3DL-803Ⅱ" between the tester and the automatic switching device are disconnected; 4) Set the manual operation analog circuit breaker module 4DL to the closed state: Press the closing button HC of the analog circuit breaker module 4DL, and the DC positive power is transmitted to the positive pole of the action coil of the connecting relay 4DL-SW through the closing button HC and the relay 4DL-SW normally closed contact 3-2 in the analog circuit breaker module 4DL. The 1-terminal contact point of the relay 4DL-SW connects the 6-terminal contact point of the relay 4DL-SW to the negative pole of the action coil of the relay 4DL-SW to form a DC circuit; Terminal 3-2 is disconnected; the normally open contact at terminal 4-5 is turned on; the normally open contact at terminal 8-9 is turned on; The DC positive power is transmitted to the coil positive terminals of the relay 4DL-KⅠ and relay 4DL-KⅡ of the analog circuit breaker module 4DL through the air switch "ZLKK" and the 4-5 terminal conducting contact of the relay 4DL-SW in the analog circuit breaker module 4DL 1; Relay 4DL-KⅠ and relay 4DL-KⅡ action coil negative terminal 2 with DC negative power, energized relay 4DL-KⅠ and relay 4DL-KⅡ flip: The normally open contact of the a1-a2 terminal of the relay 4DL-KⅠ is turned on, and the DC positive current carried by the a1 terminal of the relay 4DL-KⅠ is connected to the red light D1, and the red light D1 turns from off to bright; at the same time, the green light D2 turns from on to off ; The normally open contact of the b1-b2 end of the relay 4DL-KⅠ is turned on; the b1 end is connected to the "3DL-GY2" in the analog circuit breaker module 3DL through the terminal 4DL-GY1, and the b2 end is connected through the terminal 4DL-GY2, the experimental switch " AN4" is transmitted to the terminal 5DL-GY2 in the analog circuit breaker module 5DL; the DC positive power transmitted by the relay "3DL-GY2" terminal in the analog circuit breaker module 3DL passes through the conduction terminal "4DL-GY1" in the analog circuit breaker module 4DL ", "4DL-GY2" and experimental switch "AN4" are transmitted to "5DL-GY2" in the analog circuit breaker module 5DL, and the circuit is smooth; 5) Simulate the action of the transformer module (1) Analog transformer module "1PT": DC positive electricity enters the relay "1PT-I" and relay "1PT-II" of the analog transformer module "1PT" through the circuit breaker "ZLKK" and the experimental switch "AN1". The positive pole of the coil constitutes a DC circuit, the intermediate relays "1PT-I" and "1PT-II" of the simulated transformer module "1PT" act, and the on-off status of each contact of the relay is reversed; the a1-a2 of the relay 1PT-I is normally open The contact is turned on, and the yellow light "1PT-D3" turns from off to on; the normally open contact between b1-b2 of "1PT-I" is turned on, and the phase A voltage is transmitted to the standby self-injection device through the test line; "1PT The normally open contact between "a1-a2" of -Ⅱ is conductive, and the voltage of phase B is transmitted to the standby automatic switching device through the test line; the normally open contact between "b1-b2" of "1PT-Ⅱ" is conductive, and the voltage of phase C It is transmitted to the standby self-injection device through the test line; (2) Analog transformer module "2PT": DC positive electricity enters the relay "2PT-I" and relay "2PT-II" of the analog transformer module "2PT" through the circuit breaker "ZLKK" and the experimental switch "AN2". The positive pole of the coil; when the negative pole of the two relay coils is long, there is a DC negative current to form a DC circuit, and the intermediate relays "2PT-I" and "2PT-II" of the simulated transformer module "2PT" act, and the on-off status of each contact of the relay is reversed; " The normally open contact between "a1-a2" of 2PT-I conducts, and the yellow light "2PT-D3" changes from off to bright; the normally open contact between "b1-b2" of "2PT-I" conducts, and the voltage of phase A It is transmitted to the standby automatic switching device through the test line; the normally open contact between "a1-a2 of 2PT-Ⅱ" is turned on, and the B-phase voltage is transmitted to the standby automatic switching device through the test line; "b1-b2 of 2PT-Ⅱ" The normally open contacts between them are turned on, and the phase C voltage is transmitted to the standby self-injection device through the test line; (3) Simulated transformer module "3PT": DC positive electricity passes through the circuit breaker "ZLKK", the experimental switch "AN1", the conduction contacts of "1DL-GY1" and "1DL-GY2" in the simulated circuit breaker module 1DL, The conductive contacts of "2DL-GY1" and "2DL-GY2" in the analog circuit breaker module 2DL, and the experimental switch "AN3" enter the coils of the analog transformer module "3PT" relay "3PT-I" and relay "3PT-II" Positive pole; the negative pole of the two relay coils is long with DC negative electricity to form a DC circuit, and the intermediate relays "3PT-I" and "3PT-II" of the simulated transformer module "3PT" act, and the on-off status of each contact of the relay is reversed; the relay " The normally open contact between a1-a2 of 3PT-I is conducting, and the yellow light "3PT-D3" turns from off to on; the normally open contact between b1-b2 of relay "3PT-I" is conducting, and the phase A The voltage is transmitted to the standby automatic switching device through the test line; the normally open contact between "a1-a2 of 3PT-Ⅱ" is turned on, and the B-phase voltage is transmitted to the standby automatic switching device through the test line; "b1-b2 of 3PT-Ⅱ "The normally open contact between "is turned on, and the C-phase voltage is transmitted to the standby self-injection device through the test line; (4) Simulated transformer module "4PT": DC positive electricity passes through the circuit breaker "ZLKK", the experimental switch "AN2", the conduction contacts of "3DL-GY1" and "3DL-GY2" in the simulated circuit breaker module 3DL, The conductive contacts of "4DL-GY1" and "4DL-GY2" in the simulated circuit breaker module 4DL, and the experimental switch "AN4" enter the relay "4PT-I" and relay "4PT-II" of the simulated transformer module "4PT". The positive pole of the coil; the negative pole of the two relay coils has a DC negative power for a long time, forming a DC circuit, simulating the action of the intermediate relays "4PT-I" and "4PT-II" of the transformer module "4PT", and the on-off status of each contact of the relay is reversed; The normally open contact between "a1-a2 of 4PT-I" conducts, and the yellow light "4PT-D3" changes from off to bright; the normally open contact between "b1-b2 of 4PT-I" conducts, and the phase A The voltage is transmitted to the standby automatic switching device through the test line; the normally open contact between "a1-a2 of 4PT-II" is conducted, and the B-phase voltage is transmitted to the standby automatic switching device through the test line; "b1-b2 of 4PT-Ⅱ "The normally open contact between "is turned on, and the C-phase voltage is transmitted to the standby self-injection device through the test line; Step 3: Test status: 1) Push the experimental switch "AN3" to the off position, and the positive electricity of the experimental switch "AN3" disappears after passing through the contacts of "5DL-GY1" and "5DL-GY2" in the simulated circuit breaker module 5DL; the experimental switch "AN4" ” until the positive electricity of “4DL-GY2” in the simulated circuit breaker module 4DL disappears; 2) The action of the analog transformer module "3PT": the DC positive channel is disconnected, the analog transformer module "3PT" has no DC positive input, and the intermediate relays "3PT-I" and "3PT" of the analog transformer module "3PT" -Ⅱ" reset, the on-off status of each contact of the relay is reversed; the yellow light "3PT-D3" changes from on to off; The normally open contact between "b1-b2 of 3PT-I" is disconnected, and the output of phase A voltage stops; The normally open contact between "a1-a2 of 3PT-Ⅱ" is disconnected, and the output of phase B voltage stops; The normally open contact between "b1-b2 of 3PT-Ⅱ" is disconnected, and the output of phase C voltage stops; Step 4: Detect the logical action process of the standby automatic switching device: 1) The analog circuit breaker module 1DL for the automatic switch-on device of the detection equipment; The standby self-injection device sends a DC positive signal to the tester through the test line "1DL33", and the DC positive power is transmitted to the contact of the relay "1DL-SW terminal 9" in the analog circuit breaker module 1DL, and the relay "1DL-SW" closed by the action The 9-8 normally open contacts are transmitted to the connection relay "1DL-SW" with 7 contacts on the positive pole of the reset coil, and 12 contacts on the negative pole of the reset coil with DC negative electricity to form a DC circuit, which simulates the reset of the two-position relay "1DL-SW" in the circuit breaker module 1DL. , the on-off status of each contact of the relay is reversed; the relay "1DL-SW" in the analog circuit breaker module 1DL loses the DC positive reset; the normally open contact between "4-5 of 1DL-SW" is disconnected; "1DL-SW The normally open contact between 8-9" is disconnected, and the relays "1DL-KⅠ" and "1DL-KⅡ" are reset; the red light "1DL-D1" turns from on to off; the green light "1DL-D2" turns from off to on ; The normally open contact between "a1-a2 of 1DL-KⅡ" is disconnected, and the connecting line "1DL-801Ⅰ" and "1DL-802Ⅰ" of the standby automatic switching device are disconnected; between a1-a3 of "1DL-KⅡ" The normally closed contact is closed, the connecting line "1DL-801Ⅰ" and "1DL-803Ⅰ" of the standby automatic switching device are connected; "1DL-801Ⅱ" and "1DL-802Ⅱ" are disconnected; the normally closed contact between b1-b3 of "1DL-KⅡ" is closed, and the connection line "1DL-801Ⅱ" and "1DL-803Ⅱ" of the standby self-injection device are connected ; 2) Detect the working status of the standby automatic switching device and the simulated circuit breaker module 5DL; The standby self-injection device sends a DC positive signal to the tester through the test line "5DL3", and the DC positive power is transmitted to the connection through the normally closed contact between the 3-2 contacts of the relay "5DL-SW" in the analog circuit breaker module 5DL. 1 contact of the positive pole of the action coil of the relay "5DL-SW", and 6 contacts of the negative pole of the action coil have DC negative electricity, forming a DC circuit, simulating the action of the two-position relay "5DL-SW" in the circuit breaker module 5DL, and the on-off status of each contact of the relay is reversed ;The normally closed contact between "2-3 of 5DL-SW" is disconnected; the normally open contact between "4-5 of 5DL-SW" is turned on; the normally open between "5DL-SW:8-9" contact conduction; The DC positive power is transmitted to the terminal of the intermediate relay "5DL-KⅠ" and "5DL-KⅡ" of the analog circuit breaker module 5DL connected to the positive pole of the coil through the conducting contacts of the air switch "ZLKK" and "4-5 of 5DL-SW" 1", the 2 contacts of the negative pole of the coil carry DC negative electricity, forming a DC circuit, simulating the action of the intermediate relays "5DL-KⅠ" and "5DL-KⅡ" of the circuit breaker module 5DL, and the on-off status of each contact of the relay is reversed; The normally open contact between a1-a2 of the relay "5DL-KⅠ" conducts, the red light "5DL-D1" changes from off to bright; the green light "5DL-D2" changes from bright to off; "5DL-KⅠ's b1-b2 "The normally open contact between "is turned on, and the terminals "3DL-GY1" and "3DL-GY2" are turned on; the positive DC current passes through the circuit breaker, the experimental switch "AN2", and "3DL-GY1" in the analog circuit breaker module 3DL Conducting contact with "3DL-GY2", "4DL-GY1" and "4DL-GY2" conducting contact in analog circuit breaker module 4DL, "AN4", "5DL-GY1" and "5DL-GY1" in analog circuit breaker module 5L 5DL-GY2" conduction contact is transferred to "AN3"; The relay "5DL-KⅡ" acts, the normally open contact between a1-a2 of the relay "5DL-KⅡ" conducts, and the connection line "5DL-801Ⅰ" and "5DL-802Ⅰ" of the tester and the automatic switching device are connected ;The normally closed contact between "a1-a3 of 5DL-KⅡ" is disconnected, and the connection line "5DL-801Ⅰ" and "5DL-803Ⅰ" between the tester and the automatic switching device are disconnected; "b1-a3 of 5DL-KⅡ" The normally open contact between b2" is conducting, the connection line "5DL-801Ⅱ" and "5DL-802Ⅱ" between the tester and the automatic switching device are conducting; the normally closed contact between "5DL-KⅡ b1-b3" Disconnect, disconnect the connection line "5DL-801Ⅱ" and "5DL-803Ⅱ" between the tester and the automatic switching device; 3) Simulate the action state of the transformer module: Simulated transformer module "3PT": DC positive current passes through air switch "ZLKK", experimental switch "AN2", conductive contact of "3DL-GY1" and "3DL-GY2" in simulated circuit breaker module 3DL, simulated circuit breaker The conducting contacts of "4DL-GY1" and "4DL-GY2" in module 4DL, the conducting contacts of "5DL-GY1" and "5DL-GY2" in the simulated circuit breaker module 5DL, and the experimental switch "AN4" enter the simulation The positive pole of the relay "3PT-I" of the transformer module "3PT" and the positive coil of the relay "3PT-II"; the negative poles of the two relay coils carry DC negative electricity for a long time, forming a DC circuit, simulating the intermediate relay of the transformer module "3PT" 3PT-I" and "3PT-II" act, the on-off status of each contact of the relay is reversed; the normally open contact between a1-a2 of "3PT-I" conducts, and the yellow light "3PT-D3" turns from off to on ; The normally open contact between "b1-b2 of 3PT-I" is conducting, and the phase A voltage is transmitted to the standby self-injection device through the test line; the normally open contact between "a1-a2 of 3PT-II" is conducting, The phase B voltage is transmitted to the standby automatic switching device through the test line; the normally open contact between "3PT-II b1-b2" is turned on, and the C phase voltage is transmitted to the standby automatic switching device through the test line; Step 5: The logic function of the detected standby automatic switching is correct and meets the requirements, and the tested standby automatic switching device can be put into operation.

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