12kV 630A 20kA

Product ID: 269ab1-6
Circuit breaker ceramic vacuum interrupter 12kV 630A 20kA
Technicl parameters:
Physical property Parameter
Rated voltage 12kV
Rated current 630A
Rated short-circuit breaking current 20kA
Rated short-circuit current (peak) 50kA
Rated peak withstand current 50kA
Rated short time withstand current 20kA
Rated short circuit duration 4s
Rated single capacitor bank breaking current 630A
Rated back-to-back capacitor bank breaking current 400A
Short time (1min) Power frequency withstand voltage 42kV
Lightning impulse withstand voltage 75kV
Rated contact pressure limit circuit resistance ≤25μΩ
Rated short circuit breaking current breaking times 50
Mechanical life 10000
Maximum contact distance
Contact Closing Force 100±50N
Contact anti-force 200±50N
Contact to allow the wear thickness 3mm
Rated operating sequence O,0.3s,CO,180s,CO
Contact opens the distance 11±1mm
Contact ultra-travel
Average opening speed 1.1±0.2m/s
The average closing speed 0.6±0.2m/s
Nominal contact pressure 2000±200N
Contact closing bounce time ≤2mS
Contact switch and different periods of sub-gate ≤2mS
Tripping contact bounce amplitude <2mm
Rated making current /
Limit breaking current /
The maximum mass of the interrupter
Installation diagram:
Circuit breaker ceramic vacuum interrupter 12kV 630A 20kA installation