Page 55 - YINGMING POWER(HIGH VOLTAGE)

FK(R)N12-12
INDOOR HIGH-PRESSURE COMPRESSED
GAS LOAD BREAK SWITCH YINGMING POWER
The main technical parameters

Project Unit FKN12-12 FKRN12-12
Rated voltage kV 12

Rated frequency Hz 50
Rated current A 630 100
Lightning impulse withstand voltage kV Ground and interphase 75, isolation break 85
1min power frequency withstand voltage kV Ground and interphase 42, isolation 48
Rated thermal stability current kA 20(4S)
Rated dynamic stable current kA 50
Rated closing current (peak value) kA 50 50
Rated short-circuit breaking current (expected value) kA 31.5

12.tMax at critical breaking current A2S According to the characteristic curve of fuse
Minimum breaking current kA According to the characteristic curve of fuse
Rated transfer current kA 1.5
Maximum breaking current (reference value) kA 1.8
Breaking no-load transformer capacity kVA 1250
Rated cable charging current A 10
Breaking times of rated active load current Times >100

The time when the striker touches the load switch to open S >0.06
Grounding switch thermal stability current kA 20(2S)
Grounding switch thermal stability current (peak value) kA 50
Motor operating supply voltage V AC DC 110、220

Shape and installation size (mm)

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