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Gas-insulated combination switchgear

A composite switch, gas insulation technology, applied in switchgear, switchgear setting, electrical components and other directions, can solve the problem of insufficiency, achieve the effect of improving reliability, large current, and achieving maintenance-free

Active Publication Date: 2007-08-08
HENAN PINGGAO ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned known gas insulator switchgear comprising an isolation unit with only one earthing function cannot meet the requirements of the Chinese power system operating regulations.

Method used

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  • Gas-insulated combination switchgear
  • Gas-insulated combination switchgear
  • Gas-insulated combination switchgear

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Embodiment Construction

[0020] As shown in Figures 1, 2, 3, 4, 5, and 6, the present invention includes an outlet bushing 1 that accommodates a high-voltage outlet terminal 1A; a circuit breaker unit 5; Transformer 4, double grounding isolation units 2, 3; isolation grounding unit connected to the other terminal of circuit breaker unit 5; incoming wire sleeve connected to the isolation grounding unit to accommodate high-voltage incoming line terminals;

[0021] The double grounding isolation unit 2, 3 includes a housing 102, a quick grounding switch 2 and an isolating grounding switch 3 installed in the housing 102,

[0022] The fast earthing switch 2 includes a static contact 104 installed on the opening of the housing 102 connected to the outlet bushing 1 through a basin insulator 103, a moving contact 102A of the quick earthing switch arranged in the housing 102, and a moving contact 102A for controlling the quick earthing switch. The quick earthing switch operating mechanism 101 in which the cont...

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Abstract

The invention relates to one compact structure gas insulation compound switch device, which comprises the following parts: high voltage out terminal cover tube; breaker unit; current inductance and double earth isolation unit connected to breaker unit terminal; isolation earth connection unit to breaker unit; wire in cover tube connected to high voltage wire connection terminal; double earth isolation unit composed of shell, switch and earth switch; rapid earth switch composed of static probe and switch operation structure and isolation earth switch.

Description

Technical field: [0001] The invention belongs to an outdoor three-phase AC 50Hz power transmission switchgear, in particular to a gas-insulated composite switchgear with a compact structure. Background technique: [0002] In order to reduce the floor area of ​​the substation, foreign switchgear manufacturing companies have invented composite switchgear of various structural types. Power transformation equipment, for example, the known CN1205714C discloses a gas insulated switchgear, which combines terminals, bushings, isolating switches, earthing switches, circuit breakers, housings and other components together in a compact manner to realize the switchgear Optimizing the design scheme reduces the footprint of the substation. CN1205714C discloses that at least one isolating unit can be arranged at both ends of the circuit breaker, and there is only one grounding switch in the isolating unit, which only plays the role of working grounding. However, in China's power grid, in...

Claims

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Application Information

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IPC IPC(8): H02B13/035
Inventor 田可新唐冬芝刘旭刘强宋丽君
Owner HENAN PINGGAO ELECTRIC
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