ABB VM1-T Manual page 33

M E D I U M V O LTA G E P R O D U C T S
10.2 Technical data
Circuit breakers for fixed installation
10.2.1 Performance data and weights
Rated voltage
Rated frequency
Rated lightning impulse withstand voltage
Rated power frequency withstand voltage
Rated of rise of transient recovery voltage
Peak transient recovery voltage
Rated operating sequence
Rated operating sequence for autoreclosing
Guideline values for function times:
Closing time
Opening time
Arcing duration (at 50 Hz)
Total opening time
Minimum command time on closing
Minimum command time on opening
Breaker Rated Rated
type voltage current
VM1-T kV A
1212-20 12 1250
1220-20 2000
1212-25 12 1250
1220-25 2000
1720-25 17.5 2000
2412-20 24 1250
2412-25 24 1250
( 1 ) At operating voltages lower than the rated voltage, the same values fundamentally apply as for the rated voltage. Higher values on request.
( ) Individual unit without truck
2
kV 12
Hz 50/60
kV 75
kV 28
kV/μs 0.34
kV 20.6
kV
approx. 16 ms
approx. 10 ms
≤ 15 ms
≤ 25 ms
2 ms
2 ms
Rated short- Pole
circuit breaking centres
current symm. ( )
1
kA mm
20 210
210/275
25 210
210/275
25 210/275
20 210
25 275
17.5 24
50/60 50/60
95 125
38 50
0.42 0.47
30 41
O-3 min-CO-3 min-CO
O-0.3 s-CO-3 min-CO
Weight ( ) Permissible of
2
vacuum-interrupter
switching operations
approx. kg Figure 9/28 page 32
90/95 Diagram B
135/140 Diagram C
90/95 Diagram D
135/140 Diagram E
135/140 Diagram E
100/105 Diagram B
100/105 Diagram D
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