Page 21 - YINGMING POWER(HIGH VOLTAGE)

ZW7-40.5
OUTDOOR HIGH VOLTAGE INTELLIGENT
VACUUM CIRCUIT BREAKER YINGMING POWER
Switch rated parameters

project Unit Parameter
Rated voltage kV 40.5
Rated current A 1250/1600
Rated frequency Hz 50 或 60
Power frequency withstand voltage 1min (wet) (dry) kV 80 95/95
interphase, ground / fracture
Lightning impulse withstand current (peak) interphase, kA 185
ground / fracture
Rated short-circuit breaking current kA 25/31.5
Rated short-circuit making current (peak value) kA 63/80
Rated peak withstand current kA 63/80
4S short-time withstand current kA 25/31.5
Rated operating cycle Points-0.1s-Combined-3s-Combined-6s Combined-60s Recovery
Breaking times of rated short-circuit current Times 30
Mechanical life Times 10000
Mechanism control voltage V AC/DC220
Secondary circuit 1min power frequency withstand voltage kV 2
Contact opening mm 18±1
Contact overtravel mm 4±0.5
Opening speed m/s 1.4-1.8
Closing speed m/s 0.4-0.8
Bounce time of contact closing ms ≤5
Center distance mm 710±2
Different phases of three-phase opening and closing ms ≤2
Conductive loop resistance of each phase μΩ ＜ 80
Closing time ms ≤ 100
Opening time ms ≤ 50
weight KG 800

Shape and installation size (mm)

1
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