
24
VM1
- INSTRUCTION MANUAL BA 504/05 E
Figure 9/9: Vacuum circuit breaker, type VM1, on withdrawable part, 12 kV, 630 A,
≤
31.5
kA,
pole
side
(use
in
ZS8.4
only)
33
Breaker pole
34
Contact arm with insulating tube
(versions for rated currents to 1250 A and above have
shrink sleeves)
34.1 Contact system
Figure 9/11: Circuit breaker front with controls and annunciations
1
Mechanism enclosure
1.1
Front plate
1.2
Bore for handling, both sides
2
”READY” lamp
3
ON push-button
4
OFF push-button
5
Mechanical operating cycle counter
6
Mechanical position indicator
7
Rating plate
8
Socket for emergency manual operation lever
Figure 9/10: Withdrawable part with built-in auxiliary switch
-BT2 Test position indicator
-BT1 Service position indicator
35.1 Spindle mechanism
35.2 Square spigot
35.5 Pawl
35.6 Scene head on spindle
37
Control wiring plug connector for withdrawable
assembly
—
9. Figures
Содержание VM1
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