Parameters
Rated Voltage: 3.6/7.2/12 kV
Rated Frequency: 50 Hz
Rated power-frequency withstand voltage (1 min): 42 kV
Rated lightning impulse withstand voltage (peak value): 75 kV
Rated current: 630A, 1250A / 630A, 1250A, 1600A, 2000A, 2500A, 3150A, 4000A* / 630A, 1250A, 1600A, 2000A, 2500A, 3150A, 4000A* / 1250A, 1600A, 2000A, 2500A, 3150A, 4000A*
Rated short-circuit breaking current: 20kA, 25kA, 31.5kA, 40kA
Rated short-time withstand current (4s): 20kA, 25kA, 31.5kA, 40kA
Rated short-circuit making current (peak value): 50kA, 63kA, 80kA, 100kA
Rated peak withstand current (peak value): 50kA, 63kA, 80kA, 100kA
Number of rated short-circuit current breaking operations: 50 times
Rated operating sequence Automatic reclosing: O-0.3s-CO-15s-CO、O-0.3s-CO-180s-CO
Rated operating voltage: AC220/110 V、DC220/110 V、DC48 V
Mechanical life: 30,000 times (31.5kA and below); 20,000 times (40kA)