CN-121983824-A - Short circuit device of power system

CN121983824ACN 121983824 ACN121983824 ACN 121983824ACN-121983824-A

Abstract

The disclosure provides a short circuit device of a power system, which comprises a base, a first wiring terminal, a second wiring terminal and a switch unit, wherein the first wiring terminal and the second wiring terminal are respectively arranged on the base, the switch unit is arranged in the base, and is connected in series between the first wiring terminal and the second wiring terminal, wherein the switch unit is used for conducting a passage between the first wiring terminal and the second wiring terminal when a trigger signal is input, and disconnecting the passage between the first wiring terminal and the second wiring terminal when the trigger signal stops input, or continuously conducting the passage between the first wiring terminal and the second wiring terminal after the trigger signal is input, and continuously disconnecting the passage between the first wiring terminal and the second wiring terminal after the trigger signal is input again. In the short circuit device of the power system, accidents such as false tripping caused by false operation are greatly reduced, and then safe and stable operation of normal operation equipment and a power grid is ensured.

Inventors

Luo Zhengpan
AN WENFENG
YANG XUERONG
Yang Haojia
LI LEI
DONG ZHILEI
Cai chuo

Assignees

华能澜沧江水电股份有限公司

Dates

Publication Date: 20260505
Application Date: 20260109

Claims (10)

1. A power system shorting device, comprising: the base, the first wiring terminal, the second wiring terminal and the switch unit; the first wiring terminal and the second wiring terminal are respectively arranged on the base; The switch unit is arranged in the base and is connected in series between the first wiring terminal and the second wiring terminal; The switch unit is used for conducting a passage between the first wiring terminal and the second wiring terminal when a trigger signal is input, and disconnecting the passage between the first wiring terminal and the second wiring terminal when the trigger signal is stopped from being input, or continuously conducting the passage between the first wiring terminal and the second wiring terminal after the trigger signal is input, and continuously disconnecting the passage between the first wiring terminal and the second wiring terminal after the trigger signal is input again.
2. The electrical power system shorting device of claim 1, wherein said switching unit comprises: The first switch is arranged in the base and is connected in series between the first wiring terminal and the second wiring terminal; The first switch is used for conducting a passage between the first wiring terminal and the second wiring terminal when a trigger signal is input, and disconnecting the passage between the first wiring terminal and the second wiring terminal when the trigger signal stops input.
3. The electrical power system shorting device of claim 2, wherein said first switch comprises: The self-resetting button is arranged in the base, and a normally open contact of the self-resetting button is connected in series between the first wiring terminal and the second wiring terminal; When the button of the self-resetting button is triggered, the normally open contact of the self-resetting button is conducted, and when the button of the self-resetting button is stopped being triggered, the normally open contact of the self-resetting button is disconnected.
4. The electrical power system shorting device of claim 2, wherein said switching unit comprises: the second switch is arranged in the base and is connected in series between the first wiring terminal and the second wiring terminal; The second switch is used for continuously conducting the passage between the first wiring terminal and the second wiring terminal after the trigger signal is input, and continuously disconnecting the passage between the first wiring terminal and the second wiring terminal after the trigger signal is input again.
5. The electrical power system shorting device of claim 4, wherein said second switch comprises: the self-locking button is arranged in the base, and a normally open contact of the self-locking button is connected in series between the first wiring terminal and the second wiring terminal; after the button of the self-locking button is triggered, the normally open contact of the self-locking button is continuously conducted, and after the button of the self-locking button is triggered again, the normally open contact of the self-locking button is continuously disconnected.
6. The electrical power system shorting device of claim 4, wherein said device further comprises: The trigger unit is rotatably arranged on the base, the trigger end of the trigger unit is used for outputting the trigger signal, and the first switch and the second switch are distributed at intervals along the circumferential direction of the trigger unit; The trigger end of the trigger unit is used for rotating to the first switch and outputting the trigger signal to the first switch, or stopping outputting the trigger signal to the first switch; and the device is used for rotating to the second switch and outputting the trigger signal to the second switch, or stopping outputting the trigger signal to the second switch.
7. The electrical power system shorting device of claim 6, wherein the trigger unit comprises: The rotary seat, the trigger button and the trigger connecting rod; The rotary seat is rotatably arranged on the base, and the first switch and the second switch are distributed at intervals along the circumferential direction of the rotary seat; the trigger button is arranged on the rotating seat, and the trigger connecting rod is arranged on a contact of the trigger button and positioned in the base; when the trigger connecting rod rotates to the first switch, the trigger button is used for driving the trigger connecting rod to trigger the first switch or driving the trigger connecting rod to stop triggering the first switch; when the trigger connecting rod rotates to the second switch, the trigger button is used for driving the trigger connecting rod to trigger the second switch or driving the trigger connecting rod to stop triggering the second switch.
8. The electrical power system shorting device of claim 1, wherein said device further comprises: The indicator lamp is arranged on the base, and is connected in series between the switch unit and the first wiring terminal or between the switch unit and the second wiring terminal.
9. The electrical power system shorting device according to claim 1, wherein said base is provided with a viewing window and said switch unit is located within a viewing area of said viewing window.
10. The electrical system shorting device of claim 1, wherein the first connection terminal is an in-line connection terminal and/or the second connection terminal is an in-line connection terminal.

Description

Short circuit device of power system Technical Field The disclosure relates to the technical field of electric power safety tools, in particular to a short-circuiting device of an electric power system. Background For the power system, to ensure the safety and reliability of long-term operation, periodic maintenance, preventive test and post-fault repair of various electrical equipment are fundamental and crucial works. The maintenance operation not only comprises the maintenance of primary main equipment such as transformers, circuit breakers and the like, but also relates to the careful inspection of secondary circuits such as relay protection, monitoring control and the like. After the equipment of the power system is overhauled, equipment transmission test is often required to be carried out by manually shorting signals, but more misoperation exists in a manual control mode, accidents such as false tripping are easy to cause, and the safe and stable operation of normal operation equipment and a power grid is seriously affected. Disclosure of Invention The present disclosure aims to solve, at least to some extent, one of the technical problems in the related art. To this end, it is an object of the present disclosure to provide a power system shorting device. In order to achieve the purpose, the disclosure provides a short circuit device of an electric power system, which comprises a base, a first wiring terminal, a second wiring terminal and a switch unit, wherein the first wiring terminal and the second wiring terminal are respectively arranged on the base, the switch unit is arranged in the base and is connected in series between the first wiring terminal and the second wiring terminal, the switch unit is used for conducting a passage between the first wiring terminal and the second wiring terminal when a trigger signal is input, and disconnecting the passage between the first wiring terminal and the second wiring terminal when the trigger signal stops input, or continuously conducting the passage between the first wiring terminal and the second wiring terminal after the trigger signal is input, and continuously disconnecting the passage between the first wiring terminal and the second wiring terminal after the trigger signal is input again. Optionally, the switch unit comprises a first switch, wherein the first switch is arranged in the base and is connected in series between the first wiring terminal and the second wiring terminal, the first switch is used for conducting a passage between the first wiring terminal and the second wiring terminal when a trigger signal is input, and disconnecting the passage between the first wiring terminal and the second wiring terminal when the trigger signal stops input. Optionally, the first switch comprises a self-resetting button, wherein the self-resetting button is arranged in the base, a normally open contact of the self-resetting button is connected between the first wiring terminal and the second wiring terminal in series, and when the button of the self-resetting button is triggered, the normally open contact of the self-resetting button is conducted, and when the button of the self-resetting button is stopped being triggered, the normally open contact of the self-resetting button is disconnected. Optionally, the switch unit comprises a second switch, wherein the second switch is arranged in the base and is connected in series between the first wiring terminal and the second wiring terminal, the second switch is used for continuously conducting a passage between the first wiring terminal and the second wiring terminal after a trigger signal is input, and continuously disconnecting the passage between the first wiring terminal and the second wiring terminal after the trigger signal is input again. Optionally, the second switch comprises a self-locking button, wherein the self-locking button is arranged in the base, and a normally open contact of the self-locking button is connected in series between the first wiring terminal and the second wiring terminal, wherein after the button of the self-locking button is triggered, the normally open contact of the self-locking button is continuously conducted, and after the button of the self-locking button is triggered again, the normally open contact of the self-locking button is continuously disconnected. Optionally, the device further comprises a trigger unit, wherein the trigger unit is rotatably arranged on the base, trigger ends of the trigger unit are used for outputting the trigger signals, the first switch and the second switch are distributed at intervals along the circumferential direction of the trigger unit, the trigger ends of the trigger unit are used for rotating to the first switch and outputting the trigger signals to the first switch or stopping outputting the trigger signals to the first switch, and the trigger unit is used for rotating to the second switch and outputting the trigger signals to th