Description and operation
Description of circuit breaker pole
G12--109EN03
3/4
02--2011
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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
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strictly prohibited.
GRID
Interrupting chamber
Extinguishing
Environment
The arc extinguishing environment is low--pressure SF
6
gas.
Interrupting principle
Installed horizontally, the assembly is of a thermal, auto--charging pneumatic,
double arc--blowing design
Diagram
A
10
11
12
14
20
23
24
B
21
22
15
16
17
13
18
Table of
the components
The following table lists the components both within and around the inter-
rupter chamber:
Mark
Component
Information
10
Moving contact
mounting
supported by the mechanism casing (
A
).
11
Moving contact
fitted with a contact tube (12).
13
Blowing device
fitted with a nozzle (14),
arc contacts (17),
a front arc valve guide (15),
a rear arc guide (16),
a piston (18).
20
Fixed contact
mounting
supported by the casing (
B
).
21
Permanent contact
fitted with a contact tulip (22).
23
Fixed contact
and its contact shaft (24).
Summary of Contents for FKG1X
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