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Single phase or polyphase switchgear in enveloping housing

A technology of a switchgear, a sealed case, applied in the setting of a switchgear with a metal case, setting of a switchgear with a resin case, a switchgear, etc.

Inactive Publication Date: 2004-07-21
EATON ELECTRIC INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Internal arcing usually results in SF 6 Gases are released along with the decomposition products, so the above-mentioned switchgear cannot be approached without surrounding personal protective equipment
After such a failure, the switchgear will generally not be serviceable anymore, but even if the switchgear can be repaired, a full re-evacuation before refilling with SF6 must be performed bit by bit

Method used

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  • Single phase or polyphase switchgear in enveloping housing

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Embodiment Construction

[0027] The switching device of the present invention can be used to switch the connection of the main conductor and the branch conductor. As an example, the main conductor is a medium voltage conductor with a voltage of 12kV.

[0028] The switching element is part of a load breaker switch or a power switch, for example a vacuum circuit breaker switch. The switching element is accommodated in a sealed housing together with its associated live element. The airtight housing is filled with air with a low moisture content and the inner space of the housing is sealed from the outer space in such a way that no atmospheric influences occur and that under worst conditions and throughout the life of the switchgear, The air existing in the housing will not be contaminated and will not reach the dew point. Therefore, it is preferable that a hygroscopic agent is placed in the sealed housing in such an amount that moisture permeated due to leakage of the sealed housing can be completely a...

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PUM

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Abstract

Single phase or polyphase switchgear comprising one or more switches which are mounted with the aid of solid insulation such that they are insulated, as well as associated live components such as rail systems, connectors and the like. Both the switches and the associated live components are housed in a housing enveloping said switches and live components. The enveloping housing is filled with air having a low moisture content and the interior space thereof is sealed with respect to the exterior space around the enveloping housing in such a way that the air present in the housing is not contaminated and will not reach the dew point.

Description

technical field [0001] The invention relates to unidirectional or multidirectional switchgear comprising one or more switches fitted with solid insulation so that they are insulated and associated with live elements such as rail systems, connections A coupling wherein the switch and associated live elements are housed in a housing that seals said switch and live elements. Background technique [0002] A switching device of this type is disclosed in European patent application EP0393733A1. This known switching device is advantageous in that a reliable, stable housing which is safe to touch results with a relatively simple and lightweight housing construction. [0003] Also, generally known, as Karl-Heinz Siebel, Wegberg's article "MittelspannugsAnlagen und Stationen, die neue Lastschaltergeneration unter Einsatz von SF6 als Isolier und Löschmittel" published on Elektrizitatswirtschaft, volume 79 (1980), No.22, by , published in ", from a long-term point of view, various env...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B13/02H01H33/22H01H33/56H02B13/01H02B13/055
CPCH01H2033/566H02B13/01H01H33/22H01H33/562
Inventor 阿伦·简·威廉·拉默斯
Owner EATON ELECTRIC INC
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