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Electric switching apparatus provided with two switches, such as a busbar sectionalising switch and an earthing switch, and including a driving means common to the mobile contacts of the switches

A technology of grounding isolating switch and isolating switch, which is applied in the setting of switchgear, switchgear, electric switch, etc., can solve the problems of optimization and difficulty in realizing medium cover, etc.

Inactive Publication Date: 2011-09-14
AREVA T&D
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the structure of the described appliance is not optimized for use at very high pressures, since dielectric shrouding of the individual transmission elements (ie shaft, rod or rods, and coupling rods) is difficult to achieve

Method used

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  • Electric switching apparatus provided with two switches, such as a busbar sectionalising switch and an earthing switch, and including a driving means common to the mobile contacts of the switches
  • Electric switching apparatus provided with two switches, such as a busbar sectionalising switch and an earthing switch, and including a driving means common to the mobile contacts of the switches
  • Electric switching apparatus provided with two switches, such as a busbar sectionalising switch and an earthing switch, and including a driving means common to the mobile contacts of the switches

Examples

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Embodiment Construction

[0044] The figures described below show a switchgear 2A consistent with the invention and performing a switching operation on a single pole. It goes without saying that the arrangement of the switchgear described below can be repeated for each pole of a multi-pole combination.

[0045] figure 1 A part of a three-phase switch 1 is shown with three identical boxes 2A, 2B, 2C, each housing a switchgear in accordance with the invention. These three identical phases 2A, 2B and 2C are arranged in a common metal box (not shown) and are passed through a conductor 4 (see figure 2 ) fixed to an insulating plate. In addition, an insulating strip 5 fixed to the three identical boxes 2A, 2B and 2C is provided for mechanical reinforcement.

[0046] exist Figure 1 to Figure 5 In the illustrated embodiment, the ground disconnector 20 and the busbar disconnector 21 of one phase 2A are substantially arranged in a common plane, and an angle of 90° is defined between them. It goes without...

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PUM

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Abstract

The invention relates to the control of an electric switching apparatus that includes two switches such as a busbar sectionalising switch and an earthing switch. The invention comprises: a rotation control shaft; two toggle members each including two levers hinged together, one of the hinged levers (2210, 2211) being connected to the control shaft (220) and the other (2220, 2221 or 2250, 2251) being connected to one of the mobile contacts (200, 210). The mechanism of the invention makes it possible to obtain a driving neutral point by aligning the pivot axes (222, 223 or 222, 225 or 225, 226) of the levers with the rotation axis of the control shaft when each mobile contact (200, 210) is close to or in the closed position thereof.

Description

technical field [0001] The invention relates to the field of switchgear having two circuit breakers, such as a bus disconnector and a ground disconnector. [0002] More particularly, the invention relates to switching appliances of the type described, in which each circuit breaker, such as a disconnector, comprises a pair of contacts consisting of a stationary contact and a contact moving in a linear motion, so that when the switch is operated separated from each other. [0003] The main application is medium-voltage or high-voltage switchgear, where bus disconnectors and grounding disconnectors are set in insulating boxes, each filled with a medium gas, such as SF, under a protective atmosphere 6 . Background technique [0004] The mechanical operations performed in this type of appliance are usually independent and performed by two separate mechanical control units controlled by mechanical or electrical interlocks. [0005] The purpose of these interlocks is to ensure t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H31/00
CPCH01H3/46H01H2009/0088H01H31/003H01H33/42H02B13/035
Inventor 卢卡斯·特赖尔
Owner AREVA T&D
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