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An interlock operating mechanism and high-voltage switchgear having the same

An operating mechanism and interlocking technology, used in high-voltage/high-current switches, electric switches, high-voltage air circuit breakers, etc., can solve the problems of disconnecting switches and circuit breakers without independent and reliable interlocking, and prone to misoperation accidents. The effect of avoiding live operation of the isolation switch and improving the safety of the equipment

Active Publication Date: 2018-09-25
HUAYI ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the technical defect that the switchgear in the prior art does not have an independent and reliable interlock between the isolating switch and the circuit breaker, which leads to accidents caused by misoperation, thereby providing a device that can avoid Misoperated High Voltage Switchgear Interlock Operating Mechanism

Method used

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  • An interlock operating mechanism and high-voltage switchgear having the same
  • An interlock operating mechanism and high-voltage switchgear having the same
  • An interlock operating mechanism and high-voltage switchgear having the same

Examples

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Embodiment 1

[0079] This embodiment provides an interlock operation mechanism, such as Figure 1-4 As shown, it includes: an isolation main shaft 1, which can rotate around its own axis under the action of an external force, and then drive the isolation switch to open and close; the first linkage structure is linked with the isolation main shaft 1, and the isolation main shaft 1 drives the When the isolating switch is in the opening position or closing position, the closing operation of the circuit breaker is not blocked; when the isolating main shaft 1 drives the isolating switch to switch between the opening position and the closing position, the The closing operation of the circuit breaker is blocked so that the circuit breaker cannot be closed.

[0080] The interlock operating mechanism of this embodiment can prevent the circuit breaker from closing when operating the isolated main shaft 1 (such as switching from opening to closing, or switching from closing to opening), thereby avoidi...

Embodiment 2

[0122] This embodiment provides a high-voltage switchgear with the interlock operation mechanism as described in Embodiment 1.

[0123] The high-voltage switchgear of this embodiment, since it has the above-mentioned interlocking operating mechanism, naturally has all the advantages brought by the above-mentioned interlocking operating mechanism; the high-voltage switchgear provided with the above-mentioned interlocking operating mechanism can guide users one step The circuit breaker can be operated correctly in a step, and there will be no misoperation, so the safety is high.

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Abstract

The invention provides an interlocking operation mechanism and high-voltage switchgear therewith. The interlocking operation mechanism comprises an isolating main shaft which rotate around the axis of the isolating main shaft under the action of an external force, so as to drive a disconnecting switch to carry out the disconnecting operation; a first linkage structure which is linked with the isolating main shaft, and does not prevent the switching-on operation of a circuit breaker when the isolating main shaft drives the disconnecting switch to a disconnecting position or a connecting position. When the isolating main shaft drives the disconnecting switch to switch between the disconnecting position or the connecting position, the switching-on operation of the circuit breaker is prevented, and the circuit breaker is enabled not to be switched on. The mechanism can guide a worker to carry out the correct operation, avoids the misoperation, and is high in safety.

Description

technical field [0001] The invention relates to the technical field of high-voltage switchgear, in particular to an interlock operating mechanism and a high-voltage switchgear having the same. Background technique [0002] High-voltage switchgear is an electrical device often used in high-voltage power distribution systems. It usually includes vacuum circuit breakers, isolating knife switches, and grounding switches. The function of vacuum circuit breakers is to close the circuit and open the circuit. The contacts used to close the circuit or open the circuit are installed in the vacuum interrupter, and the arc generated when the contact is closed or opened can be reliably broken in the interrupter, with high safety performance. The function of the isolation knife switch is to establish a reliable insulation gap and separate the lines with an obvious disconnection point. When operating the high-voltage switchgear to open, you need to operate the vacuum circuit breaker to op...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/52
CPCH01H33/52
Inventor 陈洋波黄林利金旭范理吴堃
Owner HUAYI ELECTRIC CO LTD
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