34
33
34.1
36.1
35
35.5
35.2
35.6
8
1.1
1
1.2
37
5
2
6
7
3
4
-BT1
-BT2
35.1
VM1-T
- VACUUM CIRCUIT BREAKER
22
Figure 9/7: 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
Figure 9/9: 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
Figure 9/8: 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
Figure 9/10: 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
—
9. Figures
Summary of Contents for VM1-T
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