Alstom FKG1X - Page 57

Descrip
tion
and
operatio
n
Pole operation of
circuit
-
-
breaker
(Interrupting principle)
G13
-
-0
01EN02
2/4
02--2011
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ion contained in
this document is indicative only. No
representati
on or
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y is
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 GRID
Schematic diagram
Opening
On
re
ce
ivi
ng
a
man
ua
l
or
el
ec
tri
ca
l
op
en
or
de
r
,
the
en
er
gy
ac
cu
mu
la
ted
in
the
operating mechanism’s opening spring (32) is freed.
The control lever (30), activated by the opening spring (32), transmits the
mov
em
en
t
to
the
lo
we
r
po
le
le
ve
r
(3
4)
vi
a
the
ro
d
lin
ka
ge
(3
1)
,
in
tur
n
mov
in
g
the moving contact (11), thus separating the contacts.
Representation of
“OPEN” state
30
31
34
32
1
1
Closing
On
receivi
ng
a
manual
or
electrica
l
closur
e
order
,
the
energy
accumul
ated
in
the operating mechanism’s closing spring (33) is freed.
This operates the moving contact (11) and closes the Interrupter Chamber.
1
1
Representation of
‘CLOSED’ state
33