Siemens-Allis FC-10008, Инструкция по эксплуатации

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SHEL.L
2 Contract Fing
e
r
3
Rotor
4
Barrier
ROTOR ASSEMBLY 5
Barrier
JI-JOI-I,t
12
7
27
11
24
8
6
Bracket
Shaft
9
Stud
10
Hex
Nut (10·32) Brass
11
Stv. Locknut
12 Cotter Pin
23
#10 Lockwasher
24
Washer
25
Hex
Nut (.250)
26
.25 Lockwasher
27 Bracket
Figure 5. Type
0·10
Auxiliary
Swirr:h
Capacitor Trip Device
A c a p a ci t o r trip device is commonly used with circuit
breakers having an ac control supply installed in remote
locations or unattended substations where
battery
c
o
s
t
and
maintenance are undesirable.
In
these cases, the
capacitor trip device
may be
charged from
the same stepdown transformer that is used
to energize the breaker control. This stepdown transformer
should be c
o
nn
e
c t
e
d to the LINE
side
of the breaker.
To apply the ca
pa
c
ito
r
trip device
to existing breakers
originally shi
pp
ed
with de trip coils, contact your Siemens­
Allis sales representative.
Trip Solenoid
Normal electrical tripping (opening) is caused by the
trip solenoid (Figure 8, 17) which is designated 52TC on
the schematic of Figure 9. The trip solenoid Is energized
by operation of the circuit breaker control switch and the
protective relays which
are mounted on the switchgear.
-
8
-
ARC CHUTE ASSEMBLY
Each arc chute (
F
igu
re
6) consists of
a flame retardant
envelope which provides phase isolation for interruption
and
venting
of the
b
y
-
p
r
od
u c t
gases of
interruption.
The
arc chute contains.
1. The stationary end arc runner (1) and moving end
arc
r
u
n
n
e
r
(2)
to which
the arc terminals transfer from
the
arcing contacts. The arc runners form paths for t h e arc
terminals to travel up the arc chute.
2. The left hand blowout coil ( 4) is connected to the
stationary end arc runner (1) and the right hand blowout
coil (5) is connected to the upper main conductor (upper
stud). The two coils are connected in series and the current
in these coils generates a magnetic field that forces the arc
up into the barrier stack (3).
3. The barrier stack ( 3) consists of a number of
re­
fractory
plates, with "V-Shaped" slots, cemented together.
The barrier stack cools, squeezes and stretches the arc to
force a quick interruption.
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