CN104459232A

CN104459232A - Simple analog circuit breaker

Info

Publication number: CN104459232A
Application number: CN201410661193.5A
Authority: CN
Inventors: 张绍新; 刘哲; 王小保; 李晓阁; 孔良; 彭刚; 陈海杰
Original assignee: STATE GRID HENAN LUANCHUAN COUNTY POWER SUPPLY Co; State Grid Corp of China SGCC
Current assignee: STATE GRID HENAN LUANCHUAN COUNTY POWER SUPPLY Co; State Grid Corp of China SGCC
Priority date: 2014-11-19
Filing date: 2014-11-19
Publication date: 2015-03-25

Abstract

A simple analog circuit breaker relates to an analog circuit breaker, including a control power supply, a closing control circuit and a tripping control circuit connected to the control power supply, the normally closed contact HWJ1 of the closing position relay in the closing control circuit and the The coil HJ of the closing relay is connected in series, the normally closed contact TWJ1 of the tripping position relay in the trip control circuit is connected in series with the coil TJ of the tripping relay, the normally closed contact TJ1 of the tripping relay, the normally open contact HWJ2 of the parallel closing position relay and The normally open contact HJ2 of the closing relay and the coil HWJ of the closing position relay are connected in series in sequence, the normally closed contact HJ1 of the closing relay, the normally open contact TWJ2 of the trip position relay in parallel and the normally open contact TJ2 of the tripping relay The coils TWJ of the trip position relay are connected in series in sequence; the present invention can simulate the tripping and closing of the circuit breaker during the whole group test of the relay protection device, which can reduce the number of switching operations and avoid damage to the contacts of the high-voltage circuit breaker, which is beneficial to equipment reliable operation.

Description

A kind of easy mimic-disconnecting switch

[technical field]

The present invention relates to a kind of mimic-disconnecting switch, especially relate to a kind of easy mimic-disconnecting switch.

[background technology]

Known, when new clothes isolating switch puts into operation, commissioning staff needs to test to operation circuit, protective device and aut.eq., debug, at this moment often will operating breaker continually; Be familiar with equipment, learning manipulation operations staff and also need repeatedly deciliter isolating switch, and isolating switch repeatedly a point credit union cause contact to damage, shorten isolating switch serviceable life, and easily burn divide-shut brake coil, the normal power supply after impact puts into operation; When isolating switch is debugged, isolating switch scene must set a watch on, and guard must keep in communication unobstructed with commissioning staff, processes in time so that isolating switch has during exception, to ensure personal device security, contacts the time and efforts of at substantial so frequently.

[summary of the invention]

In order to overcome the deficiency in background technology, the invention discloses a kind of easy mimic-disconnecting switch, reaching the breaker tripping and closing of energy mimic-disconnecting switch, reduce switch motion number of times, avoid the damage of High Voltage Circuit Breaker Contacts, and extend the object in isolating switch serviceable life.

In order to realize described goal of the invention, the present invention adopts following technical scheme:

A kind of easy mimic-disconnecting switch, comprise control power supply, the shutting-brake control loop be connected with control power supply, tripping operation control loop, shutting-brake control instruction loop and tripping operation control instruction loop, in described shutting-brake control loop, the normally closed contact HWJ1 of closing operation position relay connects with the coil HJ of closing relay, in described tripping operation control loop, the normally closed contact TWJ1 of tripping position relay connects with tripping relay coil TJ, the normally closed contact TJ1 of tripping relay, the normally opened contact HWJ2 of closing operation position relay in parallel and closing relay normally opened contact HJ2, the coil HWJ of closing operation position relay connects successively, the normally closed contact HJ1 of closing relay, the normally opened contact TWJ2 of the tripping position relay in parallel and normally opened contact TJ2 of tripping relay, the coil TWJ of tripping position relay connects successively, in shutting-brake control instruction loop, combined floodgate warning light HD connects with the normally opened contact HWJ2 of closing operation position relay, tripping operation controls in instruction loop, tripping operation warning light LD connects with the normally opened contact TWJ2 of tripping position relay.

Owing to have employed technique scheme, the present invention has following beneficial effect:

1, mimic-disconnecting switch of the present invention is when the operate learning of the total group test of protective relaying device and operations staff; the breaker tripping and closing of energy mimic-disconnecting switch, can reduce switch motion number of times, avoid the damage of High Voltage Circuit Breaker Contacts; extend isolating switch serviceable life, be conducive to the reliability service of equipment.

2, the present invention is when operating actual isolating switch, the a few thing relevant with isolating switch will be forced to stop, thus affect the normal work of other staff, after employing mimic-disconnecting switch of the present invention, during debugging actual isolating switch need not deciliter, the work of other staff can not be affected.

[accompanying drawing explanation]

Fig. 1 is schematic diagram of the present invention;

[embodiment]

By explanation the present invention that the following examples can be detailed, disclose object of the present invention and be intended to protect all technological improvements in the scope of the invention.

Easy mimic-disconnecting switch by reference to the accompanying drawings described in 1, comprise control power supply, the shutting-brake control loop be connected with control power supply, tripping operation control loop, shutting-brake control instruction loop and tripping operation control instruction loop, in described shutting-brake control loop, the normally closed contact HWJ1 of closing operation position relay connects with the coil HJ of closing relay, in described tripping operation control loop, the normally closed contact TWJ1 of tripping position relay connects with tripping relay coil TJ, the normally closed contact TJ1 of tripping relay, the normally opened contact HWJ2 of closing operation position relay in parallel and closing relay normally opened contact HJ2, the coil HWJ of closing operation position relay connects successively, the normally closed contact HJ1 of closing relay, the normally opened contact TWJ2 of the tripping position relay in parallel and normally opened contact TJ2 of tripping relay, the coil TWJ of tripping position relay connects successively, in shutting-brake control instruction loop, combined floodgate warning light HD connects with the normally opened contact HWJ2 of closing operation position relay, tripping operation controls in instruction loop, tripping operation warning light LD connects with the normally opened contact TWJ2 of tripping position relay.

Execute easy mimic-disconnecting switch of the present invention, in use, control plant-grid connection 220 volts of direct supplys, when closing a floodgate, the instantaneous band of closing circuit 110 volts of positive electricity, closing relay coil HJ action, closing relay normally opened contact HJ2 closes, closing operation position relay HWJ action, closing operation position relay normally closed contact HJ1 disconnects, and prevents tripping position relay TWJ action; After tripping position relay TWJ action, the normally opened contact HWJ2 of tripping position relay closes, and HD is charged, when red; The normally opened contact HWJ2 of closing operation position relay closes, and HWJ is charged for self-sustaining closing operation position relay, and after closing operation position relay HWJ action, normally closed contact disconnects, closing relay HJ dead electricity, realistic isolating switch self shutting-brake control loop characteristic;

When tripped, the instantaneous band of trip(ping) circuit 110 volts of positive electricity, tripping relay TJ action, the normally opened contact TJ2 of tripping relay closes, tripping position relay TWJ action, and the normally closed contact TJ1 of tripping relay disconnects, closing operation position relay HWJ dead electricity, the normally opened contact HWJ2 power-off of closing operation position relay, HD power-off, red light does not work, after the coil TWJ action of tripping position relay, the normally opened contact TWJ2 of tripping position relay closes, and LD is charged, green light; The normally opened contact TWJ2 of tripping position relay closes, self-sustaining tripping position relay TWJ is always charged, and after tripping position relay TWJ action, tripping position relay normally closed contact TWJ1 disconnects, the coil TJ dead electricity of tripping relay, realistic isolating switch self tripping operation control loop characteristic.

Part not in the detailed description of the invention is prior art.

Claims

1. A simple analog circuit breaker, comprising a control power supply, a closing control circuit connected to the control power supply, a tripping control circuit, a closing control indicating circuit and a tripping control indicating circuit, characterized in that: the closing control In the circuit, the normally closed contact HWJ1 of the closing position relay is connected in series with the coil HJ of the closing relay. The closed contact TJ1, the normally open contact HWJ2 of the closing position relay in parallel, the normally open contact HJ2 of the closing relay, and the coil HWJ of the closing position relay are connected in series in sequence, the normally closed contact HJ1 of the closing relay, and the parallel tripping The normally open contact TWJ2 of the position relay is connected in series with the normally open contact TJ2 of the trip relay and the coil TWJ of the trip position relay. In series connection, in the trip control indication circuit, the trip indicator light LD is connected in series with the normally open contact TWJ2 of the trip position relay.