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Gas-insulated switchgear comprising an inspection glass for optically detecting the switching position of the switching contacts

A switchgear, gas-insulated technology, applied in the setting of switchgear, switchgear, contacts, etc., to solve problems such as the inability to uniquely identify the position

Inactive Publication Date: 2007-05-16
ABB TECH AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Depending on the design, position and structure, the visual control of the switching positions specified in some fields of application cannot be achieved or uniquely identified via direct line-of-sight contact (Blickkontakt) with the switching device in the gas-insulated switchgear

Method used

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  • Gas-insulated switchgear comprising an inspection glass for optically detecting the switching position of the switching contacts
  • Gas-insulated switchgear comprising an inspection glass for optically detecting the switching position of the switching contacts

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Embodiment Construction

[0024] Referring to FIG. 1 , the visual switch position determination makes it easy to control the switching state of the switching device inside the gas-insulated switchgear through the viewing window 9 in the enclosing wall of the housing 10 , which is only partially shown here. The switching position, ie the position of the movable contact 4 relative to the fixed contacts 1 , 2 and 3 , is determined by means of markings 5 ​​on the eg cylindrical contact 4 . Therein, each switch position uniquely corresponds to the position of the marking 5 or other marking area of ​​the movable contact relative to the fixed contact.

[0025] Operation is carried out via a screw 6 connected to a drive 8 . The switch position shown here is the circuit breaker on position EIN.

[0026] Of course, there are many ways to sensory acquire the termination position. For switchgear used in the medium voltage area, the voltage is up to 40kV. Since such switching devices are also used to release lin...

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PUM

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Abstract

The invention relates to a gas-insulated switchgear, particularly a gas-insulated medium-voltage switchgear, according to claim 1. In order to satisfy additional safety requirements also with position 2 and 3 disconnectors in gas-insulated switchgears, an inspection glass (9) is inserted / mounted in the housing (10) such that the positions of the switching contact elements can be seen directly or indirectly via optical means from outside the housing.

Description

technical field [0001] The invention relates to a gas-insulated switchgear, in particular a gas-insulated medium-voltage switchgear, according to the preamble of claim 1 . Background technique [0002] In electrical switchgears, especially in medium-voltage switchgears, besides the usually fixedly arranged power switches there are, for example, circuit breakers which are arranged between the power switch and the current-conducting path of the busbar. The circuit breaker can assume two or three positions: an on position, an off position and possibly a grounded position. Therefore, the circuit breaker is configured as a two-position or three-position circuit breaker. [0003] In the switched-on position, for example, a connection to a live busbar is established, and in the earthed position, a connection to ground is established. In the off position, the movable contact of the circuit breaker is located in an intermediate position between the on position and the ground positi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B13/035H01H9/16H01H31/00H02B13/045
CPCH01H31/003H02B13/045H01H2009/0083H01H9/16H01H2001/0021H01H2009/0292H02B13/0356
Inventor 迈克·许林巴克卡西迷尔·梅
Owner ABB TECH AG