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Rain cover of disconnecting link mechanism

A technology of rainproof cover and knife switch, which is applied in substations, outdoor isolating switches, and power plants in the electric power industry. The maintenance workload and the effect of reducing operation and maintenance costs

Inactive Publication Date: 2016-10-12
国网黑龙江省电力有限公司齐齐哈尔供电公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem that the connecting part of the existing isolating switch rotating rod and the isolating switch mechanism box is a straight-through connection. Since the junction between the isolating switch rotating rod and the isolating switch mechanism box is not tightly sealed, raindrops, snowmelt, etc. Infiltrate into the isolating switch mechanism box through the junction, causing the DC grounding of the system, resulting in the problem of refusal or malfunction of the relay protection device

Method used

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  • Rain cover of disconnecting link mechanism
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specific Embodiment approach 1

[0016] Specific implementation mode one: see figure 1 and figure 2 Describe this embodiment, the knife switch mechanism rainproof cover described in this embodiment, it comprises rainproof cover body and telescopic support 3, telescopic support 3 is used for supporting rainproof cover body, and adjusts the height of rainproof cover body, prevents The rain cover is nested on the outer surface of the isolating switch linkage rod, which is used to protect the junction of the isolating switch linkage rod and the isolating switch mechanism box connected to it;

[0017] The rainproof cover body is a left and right openable cover body, and the opening and closing part of the rainproof cover body is fixed by bolts 1-1, so that the opening and closing part is in a closed state, and a sealing strip is provided at the opening and closing part of the rainproof cover body;

[0018] The rainproof cover body is divided into upper and lower parts, which are fixed part 1 and rainproof part 2...

specific Embodiment approach 2

[0026] Specific implementation mode two: see figure 1 and figure 2 This embodiment is described. The difference between this embodiment and the rainproof cover for the knife switch mechanism described in the first specific embodiment is that the rainproof cover is made of PVDF board or polyethylene plastic.

[0027] In this embodiment, the rainproof cover is made of PVDF board or polyethylene plastic, which prevents rainwater corrosion and increases the service life of the rainproof cover.

specific Embodiment approach 3

[0028] Specific implementation mode three: see figure 1 and figure 2 This embodiment is described. The difference between this embodiment and the rainproof cover for the knife switch mechanism described in the first specific embodiment is that the rainproof cover is a cover made of sheet metal.

[0029] In this embodiment, the rainproof cover is a cover made of sheet metal to prevent exposure to the sun.

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Abstract

The invention discloses a rain cover of a disconnecting link mechanism and relates to the field of power plants, transformer substations and outdoor disconnecting switches in power industry. The problems that a disconnecting switch rotary connecting rod and a disconnecting switch mechanism box body are connected in a straight-through mode in the prior art, the connection portion between the disconnecting switch rotary connecting rod and the disconnecting switch mechanism box body is not thoroughly sealed, raindrop and molten snow permeate into the disconnecting switch mechanism box body through the connection portion, system direct current is grounded, and therefore movement rejection and mistaken movement of a relay protection device are caused are solved. The rain cover comprises a rain cover body and a telescopic support. The telescopic support is used for supporting the rain cover body and adjusting the height of the rain cover body. The rain cover body is nested to the outer surface of a disconnecting switch linkage rod and used for protecting the connection portion of the disconnecting switch linkage rod and a disconnecting switch mechanism box body connected with the disconnecting switch linkage rod. The rain cover body is a left-right opening-closing type cover body, and the opening-closing portion of the rain cover body is fixed through a bolt so as to be in a closed state. The opening-closing portion of the rain cover body is provided with a sealing strip. The rain cover is mainly used for rainwater protection.

Description

technical field [0001] The invention relates to the fields of power plants, substations and outdoor isolating switches in the electric power industry. Background technique [0002] The connecting part of the traditional isolating switch rotating link and the isolating switch mechanism box is a straight-through connection. Although this design ensures safety, extreme thunderstorms, strong winds or cloudy rain often occur during the rainy and snowy seasons in Northeast China, especially in summer and autumn. Continuous weather. [0003] Due to the poor seal between the rotating connecting rod and the mechanism of the isolating switch, the raindrops infiltrate the system and cause the DC grounding of the system. In the case of two-point grounding, it will cause the relay protection device to refuse to operate or malfunction, which will seriously affect the stable operation of the power system and affect the comprehensive automation. Assessment index (the position of the knife ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H21/08
CPCH01H21/08
Inventor 苏宝成刘烨朱博齐昕吴英基于鸿王俊平孙杰王金鑫崔悦张晔
Owner 国网黑龙江省电力有限公司齐齐哈尔供电公司
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