6 ABB Power Distribution
2 Technical data
2.1 Technical data
circuit-breakers
Rated voltage kV 36
Rated frequency Hz 50/60
Rated lightning impulse withstand voltage kV 170
Rated power frequency withstand voltage kV 70
Rate of rise of transient recovery voltage kV/µs 0.57
Peak of transient recovery voltage kV 62
Rated operating sequence O-3min-CO-3min-CO
Rated operating sequence with autoreclosing O-0.3s-CO-3min-CO
Breaker Rated Rated Rated Short-circuit Rated Rated Pole Weight
type voltage current short-circuit breaking short-circuit short- centres
breaking current making circuit
current asymmet- current duration
symmetrical
1)
rical
1)
(peak)
1)
VD4.. kV A kA kA kA s mm c. kg
3612-25 36 1250
4)
25 27.3 63 3 360 320
3616-25 1600
6)
360 320
3620-25 2000
4) 5)
360 355
3625-25 2500
5) 6)
360 355
3612-31 1250
4)
31.5 34.3 80 3 360 320
3616-31 1600
6)
360 320
3620-31 2000
4) 5)
360 355
3625-31 2500
5) 6)
360 355
Guideline values for function times:
Closing time approx. 65 ms
Opening time ≤ 45 ms
Arcing time (at 50 Hz) ≤ 15 ms
Total opening time ≤ 60 ms
Minimum command time on closing 20 ms
2)
(120 ms
3)
)
Minimum command time on opening 20 ms
2)
( 80 ms
3)
)
1)
When the operating voltage is lower than the rated voltage, the same values apply as for rated voltage.
Higher values on request.
2)
At the rated auxiliary voltage.
3)
If the activating relay contact cannot itself interrupt the release coil current.
4)
Ambient temperature ≤ 55°C.
5)
With natural ventilation of the switchgear panel.
6)
Ambient temperature ≤ 40°C.
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