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Isolating switch

A technology of isolating switch and travel switch, which is applied in the direction of electric switch, air switch parts, high-voltage air circuit breaker, etc., and can solve the problems of poor safety of isolating switch

Active Publication Date: 2021-12-03
MAINTENANCE BRANCH OF STATE GRID HEBEI ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] How to solve the technical problem of poor safety of isolating switch

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1As shown, the present invention discloses an isolating switch including a disconnecting switch body, a first power supply DC1 located on the side of the disconnecting switch body, an opening button AN-1, and a closing button AN-2, which are used to know that the closing is in place and disconnect the switch. The first travel switch SP1, the second travel switch SP2 used to know that the switch is in place and open, the third travel switch SP3 used to know that the switch is in place and closed, and the first relay used to control the opening of the isolating switch body KM1, the first normally closed contact KM1-1 and the first normally open contact KM1-2 of the first relay KM1, the second relay KM2 used to control the closing of the isolating switch body, and the first normally closed contact of the second relay KM2 Contact KM2-1 and the first normally open contact KM2-2, the third relay KM3, the first normally closed contact KM3-1 of the third relay K...

Embodiment 2

[0053] Embodiment 2 differs from Embodiment 1 in that the sounder U2 is a speaker, the identification unit is a memory, the identifier U3 is a read-write device, and the memory is electrically connected and communicated with the second interface J2, The read-write device is electrically connected and communicates with the first interface J1, and the read-write device is electrically connected and communicates with the memory through the connected interface.

[0054] The invention discloses an isolating switch comprising a isolating switch body, a first power supply DC1 located at the side of the isolating switch body, an opening button AN-1, a closing button AN-2, a first The travel switch SP1, the second travel switch SP2 used to know that the switch is in place and open, the third travel switch SP3 used to know that the switch is in place and closed, the first relay KM1 used to control the opening of the isolating switch body, the second The first normally closed contact KM1...

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PUM

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Abstract

The invention discloses an isolating switch, and relates to the technical field of power equipment. The isolating switch comprises an isolating switch body and a switching circuit, the switching circuit comprises a first power supply DC1 and a closing circuit which are located on the side of the isolating switch body and connected in series, and the isolating switch further comprises a third relay KM3 located on the side of the disconnecting switch body, a first normally-closed contact KM3-1 of the third relay KM3 and a first interface J1. The first interface J1 is electrically connected with a third relay KM3 to form a ground wire monitoring circuit, and a first normally closed contact KM3-1 of the third relay KM3 is connected in series with a closing circuit. Through the isolating switch body, the first power supply DC1, the third relay KM3, the first normally-closed contact KM3-1 of the third relay KM3, the first interface J1 and the like, the use safety of the isolation switch is better.

Description

technical field [0001] The invention relates to the technical field of electric equipment, in particular to an isolating switch. Background technique [0002] One of the main businesses of substations is switching operation, and isolating switches are widely used. During the operation, it is often necessary to disassemble and assemble the temporary grounding wire. If the temporary grounding wire is not removed in time, it will cause a vicious event of closing the switch with the grounding wire. The isolation switch cannot monitor the grounding wire in real time, and cannot ensure whether the grounding wire has been correctly connected or removed. [0003] Such as Figure 4 As shown, when the isolating switch needs to be overhauled, press the opening button AN-1, at this time the closing circuit is turned on, the coil of the first relay KM1 is charged, and the first normally open contact KM1-2 of the first relay KM1 is closed , that is, the opening self-maintaining circuit ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H31/00H01H31/02H01H47/00H01H89/00
CPCH01H31/00H01H31/02H01H89/00H01H47/002
Inventor 张裕马利陈兴东史清璞常浩王佳艺邵士辉袁浩岳洋张雨卿
Owner MAINTENANCE BRANCH OF STATE GRID HEBEI ELECTRIC POWER
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