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Mechanical interlocking device for mutual locking of high-voltage switch circuit breaker and grounding switch

A grounding switch, high-voltage switch technology, applied in the direction of electrical switches, circuits, electrical components, etc., can solve problems such as hidden safety hazards, the existence of misoperation prevention, and the impact of power system safe operation, to achieve safe use and maintenance, and prevent human error. Operation, avoidance of personal injury and property damage

Pending Publication Date: 2020-08-25
中鸿泰电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In particular, during the use of switchgear, there are still potential safety hazards in preventing misoperation, which has a great impact on the safe operation of the power system.

Method used

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  • Mechanical interlocking device for mutual locking of high-voltage switch circuit breaker and grounding switch
  • Mechanical interlocking device for mutual locking of high-voltage switch circuit breaker and grounding switch
  • Mechanical interlocking device for mutual locking of high-voltage switch circuit breaker and grounding switch

Examples

Experimental program
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Effect test

specific Embodiment

[0028] like figure 1 , figure 2 , image 3 As shown, the mechanical interlocking device for interlocking the high-voltage switch circuit breaker and the grounding switch is to lock one of the circuit breaker and the grounding switch by designing and installing a lever and slider mechanism on the basis of the existing switchgear, thereby realizing the circuit breaker Mutual blocking between grounding switch and grounding switch.

[0029] The working principle is:

[0030] The high-voltage switchgear has "five defenses" interlocking requirements, which require that the circuit breaker and the grounding switch be interlocked with each other. : Prevent the live parts from being grounded (require the circuit breaker to lock the grounding switch).

[0031] One defense, prevent power transmission to the grounding part (the grounding switch is required to lock the circuit breaker) such as Figure 4 As shown, in the switchgear, the circuit breaker is in the test position and is i...

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Abstract

The invention discloses a mechanical interlocking device for mutual locking of a high-voltage switch circuit breaker and a grounding switch. The mechanical interlocking device comprises an operating lever assembly, a latch assembly, a grounding switch locking rod assembly and a circuit breaker locking assembly; the grounding switch locking rod is driven by the operating lever to lock the groundingswitch, and meanwhile, interlocking of the circuit breaker body is released; the circuit breaker locking rod pushes a circuit breaker locking sliding block to lock the interlocking spring bolt of thecircuit breaker body, and meanwhile the grounding switch operation hole shaft sleeve interlocking is released. Therefore, mutual locking between the circuit breaker and the grounding switch is realized. Five-prevention requirements of high-voltage switch equipment are met, operation and maintenance are safer, personal injury and property loss caused by human errors and misoperation can be prevented, and operation and maintenance requirements of a power system are met.

Description

technical field [0001] The present invention relates to a 40.5KV high-voltage complete switchgear (hereinafter referred to as "switchgear"), in particular to a mechanical interlocking device for interlocking a high-voltage switch circuit breaker and a grounding switch. Background technique [0002] With the rapid development of the power industry, the application of high-voltage switchgear is becoming more and more extensive. In particular, during the use of switchgear, there are still potential safety hazards in preventing misoperation, which has a great impact on the safe operation of the power system. The "five-defense" interlocking mechanism of switchgear is the basic requirement to ensure the safe operation, repair and maintenance of switchgear. [0003] At present, the cabinet type of general-purpose 40.5kV switchgear is basically fixed, and the operating mechanism of the grounding switch is basically the same. Anti - "grounding switch lockout circuit breaker" and "c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H9/26
CPCH01H9/26
Inventor 张肇雷张兆东
Owner 中鸿泰电气有限公司
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