CN104252807A - Common electric leakage fault simulator of low-voltage lines - Google Patents
Common electric leakage fault simulator of low-voltage lines Download PDFInfo
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- CN104252807A CN104252807A CN201310667394.1A CN201310667394A CN104252807A CN 104252807 A CN104252807 A CN 104252807A CN 201310667394 A CN201310667394 A CN 201310667394A CN 104252807 A CN104252807 A CN 104252807A
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Abstract
The invention relates to a common electric leakage fault simulator of low-voltage lines. The common electric leakage fault simulator comprises a power supply bus, a phase-line over-the-ground simulation circuit, a null-line over-the-ground simulation circuit, a null-line multiple-grounding simulation circuit, an outgoing line hybrid-junction simulation circuit, a null-line non-threading joint simulation circuit, a null-line reverse-threading probe simulation circuit and a signal lamp indication circuit.
Description
Technical field
The present invention relates to the common leak current fault analogue means of a kind of low-voltage circuit, for giveing exercise training to new employee.
Background technology
At present, in electric power system, often can there is leak current fault, need the timely market exclusion fault of rural power personnel; After field staff shows up, first need failure judgement type, then according to corresponding fault type, rapidly removing faults; But because supply line is complicated, add that many rural power personnel often do not have contacted a large amount of field failure, therefore it requires a great deal of time and carries out determination and analysis to fault type, reduces first-aid repair efficiency.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency; there is provided a kind of low-voltage circuit common leak current fault analogue means; this device coordinates practice-training teaching; realize system, the normalized training to rural power employee low-voltage circuit leak current fault troubleshooting technical ability; improving employee skill level, by realizing fast finding, process leak current fault, shortening power off time; promote good service level, ensure the installation of Aftercurrent protecting equipment, operation ratio.
The object of the present invention is achieved like this: the common leak current fault analogue means of a kind of low-voltage circuit, described device include power bus, phase line over the ground mimic channel, zero line over the ground mimic channel, zero line multiple grounding mimic channel, outlet hybrid junction mimic channel, zero line non-cross-under connector analog circuit, zero line are counter wears probe mimic channel and signal lamp indicating circuit;
Described phase line is over the ground on the three-phase firewire of mimic channel and the zero line three-phase firewire that accesses power bus respectively and zero line, phase line over the ground the three-phase firewire of mimic channel and zero line through the probe of zero-sequence transformer, the three-phase firewire of described phase line mimic channel is over the ground serially connected with a contactor 1KM, and in three-phase firewire one is connected with a load between live wire and zero line, the loaded live wire of this connection is ground connection after the normally open contact and rheostat of relay 1KA;
Described zero line is over the ground on the three-phase firewire of mimic channel and the zero line three-phase firewire that accesses power bus respectively and zero line, zero line over the ground the three-phase firewire of mimic channel and zero line through the probe of zero-sequence transformer, the three-phase firewire of described zero line mimic channel is over the ground serially connected with a contactor 2KM, and in three-phase firewire one is connected with a load between live wire and zero line, this zero line is ground connection after the normally open contact and rheostat of relay 2KA;
On the three-phase firewire that the three-phase firewire of described zero line multiple grounding mimic channel and zero line access power bus respectively and zero line, the three-phase firewire of zero line multiple grounding mimic channel and zero line pass the probe of zero-sequence transformer, the three-phase firewire of described zero line multiple grounding mimic channel is serially connected with a contactor 3KM, and in three-phase firewire one is connected with a load, this zero line ground connection after the normally open contact of relay 3KA between live wire and zero line;
On the three-phase firewire that the three-phase firewire of described outlet hybrid junction mimic channel and zero line access power bus respectively and zero line, the three-phase firewire of outlet hybrid junction mimic channel and zero line pass the probe of zero-sequence transformer, the three-phase firewire of described outlet hybrid junction mimic channel is serially connected with a contactor 4KM, and a live wire in three-phase firewire ground connection after the relay 3KA of the normally open contact of relay 4KA, load and zero line multiple grounding mimic channel;
On the three-phase firewire that the three-phase firewire of described zero line non-cross-under connector analog circuit and zero line access power bus respectively and zero line, the three-phase firewire of zero line non-cross-under connector analog circuit passes the probe of zero-sequence transformer, the three-phase firewire of described zero line non-cross-under connector analog circuit is serially connected with a contactor 5KM, and in three-phase firewire one is connected with the normally open contact of a load and relay 5KA between live wire and zero line;
Described zero line is counter to be worn on three-phase firewire and zero line that the three-phase firewire of probe mimic channel and zero line access power bus respectively, the anti-probe of three-phase firewire through zero-sequence transformer wearing probe mimic channel of zero line, the anti-zero line wearing probe mimic channel of described zero line passes back through the probe of zero-sequence transformer, the three-phase firewire that described zero line is counter wears probe mimic channel is serially connected with a contactor 6KM, and in three-phase firewire one is connected with the normally open contact of a load and relay 6KA between live wire and zero line;
Described signal lamp indicating circuit includes the power lead and a ground wire be connected with the zero line on power bus that are connected with the live wire on power bus, is connected with phase line indicating circuit, zero line indicating circuit, zero line multiple grounding indicating circuit, outlet hybrid junction indicating circuit, zero line non-cross-under head indicating circuit and zero line is counter wears probe indicating circuit over the ground over the ground between described power lead and ground wire;
Above-mentioned phase line over the ground indicating circuit includes the major loop of relay 1KA, the major loop of this relay 1KA is connected with button 1SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 1KM is connected with red led 1RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 1KM is connected with green indicating lamp 1GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 1KA, the normally closed interlock of contactor 1KM access between power lead and ground wire after connecting with yellow look pilot lamp 1YE;
Above-mentioned zero line over the ground indicating circuit contains the major loop of relay 2KA, the major loop of this relay 2KA is connected with button 2SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 2KM is connected with red led 2RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 2KM is connected with green indicating lamp 2GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 2KA, the normally closed interlock of contactor 2KM access between power lead and ground wire after connecting with yellow look pilot lamp 2YE;
Above-mentioned zero line multiple grounding indicating circuit includes the major loop of relay 3KA, the major loop of this relay 3KA is connected with button 3SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 3KM is connected with red led 3RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 3KM is connected with green indicating lamp 3GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 3KA, the normally closed interlock of contactor 3KM access between power lead and ground wire after connecting with yellow look pilot lamp 3YE;
Above-mentioned outlet hybrid junction indicating circuit contains the major loop of relay 4KA, the major loop of this relay 4KA is connected with button 4SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 4KM is connected with red led 4RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 4KM is connected with green indicating lamp 4GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 4KA, the normally closed interlock of contactor 4KM access between power lead and ground wire after connecting with yellow look pilot lamp 4YE;
Above-mentioned zero line non-cross-under head indicating circuit includes the major loop of relay 5KA, the major loop of this relay 5KA is connected with button 5SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 5KM is connected with red led 5RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 5KM is connected with green indicating lamp 5GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 5KA, the normally closed interlock of contactor 5KM access between power lead and ground wire after connecting with yellow look pilot lamp 5YE;
The anti-major loop worn probe indicating circuit and contain relay 6KA of above-mentioned zero line, the major loop of this relay 6KA is connected with button 6SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 6KM is connected with red led 6RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 6KM is connected with green indicating lamp 6GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 6KA, the normally closed interlock of contactor 2KM access between power lead and ground wire after connecting with yellow look pilot lamp 6YE.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention, by all kinds of fault of simulation, can allow rural power personnel train targetedly, thus improves the efficiency of its fault type detection, reduces time during actual repairing.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of the common leak current fault analogue means of low-voltage circuit of the present invention.
Fig. 2 is the circuit block diagram of the signal lamp indicating circuit of the common leak current fault analogue means of low-voltage circuit of the present invention.
Embodiment
See Fig. 1, the common leak current fault analogue means of a kind of low-voltage circuit that the present invention relates to, described device include power bus, phase line over the ground mimic channel, zero line over the ground mimic channel, zero line multiple grounding mimic channel, outlet hybrid junction mimic channel, zero line non-cross-under connector analog circuit, zero line are counter wears probe mimic channel and signal lamp indicating circuit;
Described phase line is over the ground on the three-phase firewire of mimic channel and the zero line three-phase firewire that accesses power bus respectively and zero line, phase line over the ground the three-phase firewire of mimic channel and zero line through the probe of zero-sequence transformer, the three-phase firewire of described phase line mimic channel is over the ground serially connected with a contactor 1KM, and in three-phase firewire one is connected with a load between live wire and zero line, the loaded live wire of this connection is ground connection after the normally open contact and rheostat of relay 1KA;
Described zero line is over the ground on the three-phase firewire of mimic channel and the zero line three-phase firewire that accesses power bus respectively and zero line, zero line over the ground the three-phase firewire of mimic channel and zero line through the probe of zero-sequence transformer, the three-phase firewire of described zero line mimic channel is over the ground serially connected with a contactor 2KM, and in three-phase firewire one is connected with a load between live wire and zero line, this zero line is ground connection after the normally open contact and rheostat of relay 2KA;
On the three-phase firewire that the three-phase firewire of described zero line multiple grounding mimic channel and zero line access power bus respectively and zero line, the three-phase firewire of zero line multiple grounding mimic channel and zero line pass the probe of zero-sequence transformer, the three-phase firewire of described zero line multiple grounding mimic channel is serially connected with a contactor 3KM, and in three-phase firewire one is connected with a load, this zero line ground connection after the normally open contact of relay 3KA between live wire and zero line;
On the three-phase firewire that the three-phase firewire of described outlet hybrid junction mimic channel and zero line access power bus respectively and zero line, the three-phase firewire of outlet hybrid junction mimic channel and zero line pass the probe of zero-sequence transformer, the three-phase firewire of described outlet hybrid junction mimic channel is serially connected with a contactor 4KM, and a live wire in three-phase firewire ground connection after the relay 3KA of the normally open contact of relay 4KA, load and zero line multiple grounding mimic channel;
On the three-phase firewire that the three-phase firewire of described zero line non-cross-under connector analog circuit and zero line access power bus respectively and zero line, the three-phase firewire of zero line non-cross-under connector analog circuit passes the probe of zero-sequence transformer, the three-phase firewire of described zero line non-cross-under connector analog circuit is serially connected with a contactor 5KM, and in three-phase firewire one is connected with the normally open contact of a load and relay 5KA between live wire and zero line;
Described zero line is counter to be worn on three-phase firewire and zero line that the three-phase firewire of probe mimic channel and zero line access power bus respectively, the anti-probe of three-phase firewire through zero-sequence transformer wearing probe mimic channel of zero line, the anti-zero line wearing probe mimic channel of described zero line passes back through the probe of zero-sequence transformer, the three-phase firewire that described zero line is counter wears probe mimic channel is serially connected with a contactor 6KM, and in three-phase firewire one is connected with the normally open contact of a load and relay 6KA between live wire and zero line;
Described signal lamp indicating circuit includes the power lead and a ground wire be connected with the zero line on power bus that are connected with the live wire on power bus, is connected with phase line indicating circuit, zero line indicating circuit, zero line multiple grounding indicating circuit, outlet hybrid junction indicating circuit, zero line non-cross-under head indicating circuit and zero line is counter wears probe indicating circuit over the ground over the ground between described power lead and ground wire;
Above-mentioned phase line over the ground indicating circuit includes the major loop of relay 1KA, the major loop of this relay 1KA is connected with button 1SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 1KM is connected with red led 1RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 1KM is connected with green indicating lamp 1GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 1KA, the normally closed interlock of contactor 1KM access between power lead and ground wire after connecting with yellow look pilot lamp 1YE;
Above-mentioned zero line over the ground indicating circuit contains the major loop of relay 2KA, the major loop of this relay 2KA is connected with button 2SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 2KM is connected with red led 2RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 2KM is connected with green indicating lamp 2GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 2KA, the normally closed interlock of contactor 2KM access between power lead and ground wire after connecting with yellow look pilot lamp 2YE;
Above-mentioned zero line multiple grounding indicating circuit includes the major loop of relay 3KA, the major loop of this relay 3KA is connected with button 3SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 3KM is connected with red led 3RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 3KM is connected with green indicating lamp 3GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 3KA, the normally closed interlock of contactor 3KM access between power lead and ground wire after connecting with yellow look pilot lamp 3YE;
Above-mentioned outlet hybrid junction indicating circuit contains the major loop of relay 4KA, the major loop of this relay 4KA is connected with button 4SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 4KM is connected with red led 4RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 4KM is connected with green indicating lamp 4GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 4KA, the normally closed interlock of contactor 4KM access between power lead and ground wire after connecting with yellow look pilot lamp 4YE;
Above-mentioned zero line non-cross-under head indicating circuit includes the major loop of relay 5KA, the major loop of this relay 5KA is connected with button 5SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 5KM is connected with red led 5RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 5KM is connected with green indicating lamp 5GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 5KA, the normally closed interlock of contactor 5KM access between power lead and ground wire after connecting with yellow look pilot lamp 5YE;
The anti-major loop worn probe indicating circuit and contain relay 6KA of above-mentioned zero line, the major loop of this relay 6KA is connected with button 6SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 6KM is connected with red led 6RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 6KM is connected with green indicating lamp 6GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 6KA, the normally closed interlock of contactor 2KM access between power lead and ground wire after connecting with yellow look pilot lamp 6YE;
Principle of work of the present invention is---
1, phase line fault simulation over the ground: close contactor 1KM, now the normally open contact of contactor 1KM closes, and red led 1RD lights, and represents that combined floodgate completes; Open contactor 1KM, now the normally open contact of contactor 1KM stays open state, and green indicating lamp 1GN lights, and represents out of service; When pressing the button 1SA, relay 1KA obtains electric, the normally open contact of relay 1KA is closed, now simulated failure situation, thus yellow indicator lamp 1YE is lighted;
2, zero line fault simulation over the ground: close contactor 2KM, now the normally open contact of contactor 2KM closes, and red led 2RD lights, and represents that combined floodgate completes; Open contactor 2KM, now the normally open contact of contactor 2KM stays open state, and green indicating lamp 2GN lights, and represents out of service; When pressing the button 2SA, relay 2KA obtains electric, the normally open contact of relay 2KA is closed, now simulated failure situation, thus yellow indicator lamp 2YE is lighted;
3, zero line multiple grounding fault simulation: close contactor 3KM, now the normally open contact of contactor 3KM closes, and red led 3RD lights, and represents that combined floodgate completes; Open contactor 3KM, now the normally open contact of contactor 3KM stays open state, and green indicating lamp 3GN lights, and represents out of service; When pressing the button 3SA, relay 3KA obtains electric, the normally open contact of relay 3KA is closed, now simulated failure situation, thus yellow indicator lamp 3YE is lighted;
4, occur hybrid junction fault simulation: close contactor 4KM, now the normally open contact of contactor 4KM closes, and red led 4RD lights, and represents that combined floodgate completes; Open contactor 4KM, now the normally open contact of contactor 4KM stays open state, and green indicating lamp 4GN lights, and represents out of service; When pressing the button 4SA, relay 4KA obtains electric, the normally open contact of relay 4KA is closed, now simulated failure situation, thus yellow indicator lamp 4YE is lighted;
5, zero line does not wear probe failure simulation: close contactor 5KM, and now the normally open contact of contactor 5KM closes, and red led 5RD lights, and represents that combined floodgate completes; Open contactor 5KM, now the normally open contact of contactor 5KM stays open state, and green indicating lamp 5GN lights, and represents out of service; When pressing the button 5SA, relay 5KA obtains electric, the normally open contact of relay 5KA is closed, now simulated failure situation, thus yellow indicator lamp 5YE is lighted;
6, zero line is counter wears probe failure simulation: close contactor 6KM, and now the normally open contact of contactor 6KM closes, and red led 6RD lights, and represents that combined floodgate completes; Open contactor 6KM, now the normally open contact of contactor 6KM stays open state, and green indicating lamp 6GN lights, and represents out of service; When pressing the button 6SA, relay 6KA obtains electric, the normally open contact of relay 6KA is closed, now simulated failure situation, thus yellow indicator lamp 6YE is lighted.
Claims (1)
1. the common leak current fault analogue means of low-voltage circuit, is characterized in that: described device include power bus, phase line over the ground mimic channel, zero line over the ground mimic channel, zero line multiple grounding mimic channel, outlet hybrid junction mimic channel, zero line non-cross-under connector analog circuit, zero line are counter wears probe mimic channel and signal lamp indicating circuit;
Described phase line is over the ground on the three-phase firewire of mimic channel and the zero line three-phase firewire that accesses power bus respectively and zero line, phase line over the ground the three-phase firewire of mimic channel and zero line through the probe of zero-sequence transformer, the three-phase firewire of described phase line mimic channel is over the ground serially connected with a contactor 1KM, and in three-phase firewire one is connected with a load between live wire and zero line, the loaded live wire of this connection is ground connection after the normally open contact and rheostat of relay 1KA;
Described zero line is over the ground on the three-phase firewire of mimic channel and the zero line three-phase firewire that accesses power bus respectively and zero line, zero line over the ground the three-phase firewire of mimic channel and zero line through the probe of zero-sequence transformer, the three-phase firewire of described zero line mimic channel is over the ground serially connected with a contactor 2KM, and in three-phase firewire one is connected with a load between live wire and zero line, this zero line is ground connection after the normally open contact and rheostat of relay 2KA;
On the three-phase firewire that the three-phase firewire of described zero line multiple grounding mimic channel and zero line access power bus respectively and zero line, the three-phase firewire of zero line multiple grounding mimic channel and zero line pass the probe of zero-sequence transformer, the three-phase firewire of described zero line multiple grounding mimic channel is serially connected with a contactor 3KM, and in three-phase firewire one is connected with a load, this zero line ground connection after the normally open contact of relay 3KA between live wire and zero line;
On the three-phase firewire that the three-phase firewire of described outlet hybrid junction mimic channel and zero line access power bus respectively and zero line, the three-phase firewire of outlet hybrid junction mimic channel and zero line pass the probe of zero-sequence transformer, the three-phase firewire of described outlet hybrid junction mimic channel is serially connected with a contactor 4KM, and a live wire in three-phase firewire ground connection after the relay 3KA of the normally open contact of relay 4KA, load and zero line multiple grounding mimic channel;
On the three-phase firewire that the three-phase firewire of described zero line non-cross-under connector analog circuit and zero line access power bus respectively and zero line, the three-phase firewire of zero line non-cross-under connector analog circuit passes the probe of zero-sequence transformer, the three-phase firewire of described zero line non-cross-under connector analog circuit is serially connected with a contactor 5KM, and in three-phase firewire one is connected with the normally open contact of a load and relay 5KA between live wire and zero line;
Described zero line is counter to be worn on three-phase firewire and zero line that the three-phase firewire of probe mimic channel and zero line access power bus respectively, the anti-probe of three-phase firewire through zero-sequence transformer wearing probe mimic channel of zero line, the anti-zero line wearing probe mimic channel of described zero line passes back through the probe of zero-sequence transformer, the three-phase firewire that described zero line is counter wears probe mimic channel is serially connected with a contactor 6KM, and in three-phase firewire one is connected with the normally open contact of a load and relay 6KA between live wire and zero line;
Described signal lamp indicating circuit includes the power lead and a ground wire be connected with the zero line on power bus that are connected with the live wire on power bus, is connected with phase line indicating circuit, zero line indicating circuit, zero line multiple grounding indicating circuit, outlet hybrid junction indicating circuit, zero line non-cross-under head indicating circuit and zero line is counter wears probe indicating circuit over the ground over the ground between described power lead and ground wire;
Above-mentioned phase line over the ground indicating circuit includes the major loop of relay 1KA, the major loop of this relay 1KA is connected with button 1SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 1KM is connected with red led 1RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 1KM is connected with green indicating lamp 1GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 1KA, the normally closed interlock of contactor 1KM access between power lead and ground wire after connecting with yellow look pilot lamp 1YE;
Above-mentioned zero line over the ground indicating circuit contains the major loop of relay 2KA, the major loop of this relay 2KA is connected with button 2SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 2KM is connected with red led 2RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 2KM is connected with green indicating lamp 2GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 2KA, the normally closed interlock of contactor 2KM access between power lead and ground wire after connecting with yellow look pilot lamp 2YE;
Above-mentioned zero line multiple grounding indicating circuit includes the major loop of relay 3KA, the major loop of this relay 3KA is connected with button 3SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 3KM is connected with red led 3RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 3KM is connected with green indicating lamp 3GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 3KA, the normally closed interlock of contactor 3KM access between power lead and ground wire after connecting with yellow look pilot lamp 3YE;
Above-mentioned outlet hybrid junction indicating circuit contains the major loop of relay 4KA, the major loop of this relay 4KA is connected with button 4SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 4KM is connected with red led 4RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 4KM is connected with green indicating lamp 4GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 4KA, the normally closed interlock of contactor 4KM access between power lead and ground wire after connecting with yellow look pilot lamp 4YE;
Above-mentioned zero line non-cross-under head indicating circuit includes the major loop of relay 5KA, the major loop of this relay 5KA is connected with button 5SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 5KM is connected with red led 5RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 5KM is connected with green indicating lamp 5GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 5KA, the normally closed interlock of contactor 5KM access between power lead and ground wire after connecting with yellow look pilot lamp 5YE;
The anti-major loop worn probe indicating circuit and contain relay 6KA of above-mentioned zero line, the major loop of this relay 6KA is connected with button 6SA and is accessed between power lead and ground wire afterwards, the normally open contact of described contactor 6KM is connected with red led 6RD and is accessed between power lead and ground wire afterwards, the normally closed interlock of described contactor 6KM is connected with green indicating lamp 6GN and is accessed between power lead and ground wire afterwards, and the normally open contact of described relay 6KA, the normally closed interlock of contactor 2KM access between power lead and ground wire after connecting with yellow look pilot lamp 6YE.
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| CN106960619A (en) * | 2016-12-30 | 2017-07-18 | 绍兴电力设备成套公司 | Integrate electrical practice training and the training set and application method of low-voltage collecting meter reading failure |
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| CN103345872A (en) * | 2013-07-16 | 2013-10-09 | 南京丹迪克科技开发有限公司 | Residual current action protecting system practical training device |
| CN203659298U (en) * | 2013-12-11 | 2014-06-18 | 江苏省电力公司江阴市供电公司 | Low voltage line common leakage fault simulation device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104575203A (en) * | 2015-01-06 | 2015-04-29 | 国家电网公司 | Three-level residual current operated protection simulated practice training system |
| CN106960619A (en) * | 2016-12-30 | 2017-07-18 | 绍兴电力设备成套公司 | Integrate electrical practice training and the training set and application method of low-voltage collecting meter reading failure |
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