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Alstom GL317X User Manual

Alstom GL317X
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Description and operation
General description of the circuit--breaker
L12--0012EN/01
2/6
11--2012
© ALSTOM 2010. All rights reserved. Information contained in this doc ument is indic ative only. No representation or warranty is given or should be relied on
that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without
liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
GRID
Pole of the circuit--breaker
Description
The pole of the circuit--breaker is made up with three main components :
S The interrupting chambers (1).
S The support column (2).
S The housing of the mechanism (3).
Diagram
6
7
4
4
5
7
13
3
8
3
2
1
1
Interrupting
chambers
The pole is comprised of two interrupting chambers (1) -- in a ceramic envel-
ope -- equipped at each end with a HV terminal (5).
The interrupting chambers are laid out horizontally and attached, at their
base, to a common housing (6). This housing contains the mechanism used
to transfer the operating movement to the mobile contacts of both chambers.
The interrupting can also be equipped with capacitors (7) and a corona ring
(4).
Support column
Consisting of two, three or four ceramic insulators, the support column allows
the circuit--breaker to be ground--insulated and it also encloses the operating
tie--rod which is attached to the interrupting chamber’s moving contacts.
The support column can also be equipped with a corona ring (13).
Housing of the
mechanism
A housing (3) -- situated at the base of the column -- contains the lever and
crank assembly and which operates the moving contact.
The SF
6
filling and monitoring device (8) is also situated on the housing.

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Alstom GL317X Specifications

General IconGeneral
BrandAlstom
ModelGL317X
CategoryCircuit breakers
LanguageEnglish

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