Earthing switch interlocking device of GIS combined electrical apparatus
A technology of grounding switch and interlocking device, which is applied in electrical switches, circuits, electrical components, etc., and can solve problems such as small application range
Active Publication Date: 2016-05-11
XUJI XIAMEN INTELLIGENT SWITCHGEAR MFG +1
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In the traditional GIS, the closing and opening of the isolating switch and the grounding switch mostly adopt electrical control, and the chain operation of the isolating switch and the grounding switch is carried out through electricity, which can only be operated when there is electricity, and the scope of application is small
Method used
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Embodiment Construction
[0018] Such as figure 1 , figure 2 As shown, the present invention is an interlocking device for a grounding switch of a GIS combined electrical appliance, which includes a disconnector 1 and a grounding switch 2 .
[0019] The grounding switch 2 is installed below the isolating switch 1 . The isolating switch 1 realizes opening and closing of the isolating switch by driving the isolating switch moving contact 13 to reciprocate and rectilinearly move through the isolating switch transmission shaft 12 rotating the gear forward and backward.
[0020] The disconnector 1 includes a disconnector housing 11 , a disconnector drive shaft 12 , a disconnector movable contact 13 and a disconnector static contact 14 . The isolating switch transmission shaft 12 penetrates the isolating switch housing 11 from above and the penetrating end of the isolating switch transmission shaft 12 is connected with the isolating switch moving contact 13, and the isolating switch moving contact 13 is m...
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The invention discloses an earthing switch interlocking device of a GIS combined electrical apparatus. The earthing switch interlocking device comprises a disconnecting switch and an earthing switch, wherein the earthing switch is arranged at the lower part of the disconnecting switch; the disconnecting switch comprises a disconnecting switch shell, a disconnecting switch transmission shaft, a disconnecting switch moving contact and a disconnecting switch fixed contact; the earthing switch comprises an earthing switch shell, an earthing switch moving contact and an earthing switch fixed contact; and a bump at the upper end of an interlocking stop shaft of the earthing switch fixed contact can be clamped into one of a plurality of grooves at the lower end of the disconnecting switch transmission shaft. According to the earthing switch interlocking device, motion of the moving contact is operated to push the bump at the upper end of the interlocking stop shaft to be clamped into the groove at the lower end of the disconnecting switch transmission shaft through closing of the earthing switch moving contact and motion of the disconnecting switch transmission shaft is blocked; and rotary motion of the disconnecting switch transmission shaft is limited under the close state of the earthing switch, so that closing of the disconnecting switch is limited.
Description
technical field [0001] The invention relates to a switchgear, in particular to an interlocking device for a grounding switch of a GIS combined electric appliance. Background technique [0002] In the power industry, GIS optimizes the primary equipment in a substation except for transformers, including circuit breakers, disconnectors, grounding switches, voltage transformers, current transformers, lightning arresters, busbars, cable terminals, and incoming and outgoing bushings. The design is organically combined into a whole. The advantages of GIS are small footprint, high reliability, strong security, and small maintenance workload. In the traditional GIS, the closing and opening of the isolating switch and the grounding switch mostly adopt electrical control, and the chain operation of the isolating switch and the grounding switch is carried out through electricity, which can only be operated when there is electricity, and the scope of application is small. Contents of ...
Claims
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IPC IPC(8): H01H9/26
CPCH01H9/26
Inventor 袁传镇何荣涛刘运建李宪普傅飞峰
Owner XUJI XIAMEN INTELLIGENT SWITCHGEAR MFG