ABB VM1-T Manual page 22

V M 1 -T - VACUUM CIRCUIT BREAKER
22
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9. Figures
33
34
34.1
Figure 9/7:
Figure 9/9:
Vacuum circuit breaker, type VM1-T, on withdrawable part,
24 kV, 1250 A, ≤ 25 kA, pole side.
33 Breaker pole
34 Contact arm with insulating tube (versions for rated
currents to 630 A and above have insulating tubes)
34.1 Contact system
35.5 35.2
35.6 35.1 -BT1
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
36.1
35
Figure 9/8:
37
7
-BT2
Figure 9/10: Circuit breaker front with controls and annunciations.
Vacuum circuit breaker, type VM1-T, on withdrawable part,
24 kV, 1250 A, ≤ 25 kA, mechanism side.
35 Withdrawable assembly
36.1 Control wiring plug
8 1.1 1
5 6 4 3
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
1.2
2