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Mechanical interlocking device of disconnecting switch and grounding switch

A technology of grounding switch and isolating switch, which is applied in the field of mechanical interlocking devices of isolating switches and grounding switches, can solve the problems of high cost and complex structure, and achieve the effects of low cost, convenient assembly and simple structure

Active Publication Date: 2011-09-14
CHINA XD ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing mechanical interlocking structure of isolating switches and grounding switches generally adopts the design concept of "blocking interlocking", which has a relatively complicated structure and high cost

Method used

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  • Mechanical interlocking device of disconnecting switch and grounding switch
  • Mechanical interlocking device of disconnecting switch and grounding switch
  • Mechanical interlocking device of disconnecting switch and grounding switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] refer to figure 1 , figure 2 , image 3 , is a mechanical interlocking device for a disconnector and a grounding switch, mainly comprising: a mounting plate 1, a pressure plate 3, a first sleeve 4 for a disconnector, a first rotating shaft 5, a first plug 6, and a first coil spring 10. The first locking lever 12, the second bushing 7 for the grounding switch, the second rotating shaft 8, the second plug 9, the second coil spring 11, the second locking lever 13, and the main lock for the isolating switch Chain lever 2. A main locking rod 2 is arranged on the mounting plate 1 , and main locking holes corresponding to the main locking rod 2 are arranged on the sides of the first bushing 4 and the first plug 5 .

[0016] The first shaft sleeve 4 and the second shaft sleeve 7 are arranged in parallel, and meanwhile, they vertically pass through and are fixed on the mounting plate 1 . The first rotating shaft 5 is installed in the center of the first shaft sleeve 4, and ...

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PUM

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Abstract

The invention relates to the field of design and manufacture of metal-enclosed switchgears and discloses a mechanical interlocking device of a disconnecting switch and a grounding switch. The mechanical interlocking device comprises a mounting plate, a pressure plate, a first shaft sleeve, a first rotary shaft, a first plug, a first helical spring and a first interlocking rod which are used for the disconnecting switch, and a second shaft sleeve, a second rotary shaft, a second plug, a second helical spring and a second interlocking rod which are used for the grounding switch.

Description

technical field [0001] The invention relates to the design and manufacture of metal-enclosed switchgear, in particular to a mechanical interlocking device for a disconnecting switch and a grounding switch. Background technique [0002] Metal-enclosed switchgear (hereinafter referred to as "switchgear") is equipped with high-voltage components (high-voltage switches) such as circuit breakers, load switches, load switch-current-limiting fuse combinations, isolating switches or grounding switches, which together form a complete set of switchgear. The operation of each high-voltage component needs to be carried out in strict accordance with a certain sequence, especially the chain failure of the disconnector and the grounding switch is the biggest hidden danger leading to a major accident, therefore, it is also the focus of the safety design of the switchgear. However, the existing mechanical interlocking structure of the isolating switch and the grounding switch generally adop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H9/26
Inventor 陈波
Owner CHINA XD ELECTRIC CO LTD
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