Vacuum Interrupter

Vacuum Interrupter,VCB interrupter,Vacuum tube

Products details:

Main Technical Data

Rated voltage12kV
Rated current630/1250A
Rated frequency50Hz
Rated short-time power frequency withstand voltage(1min)42kV
Rated lightning impulse withstand voltage75kV
Rated short-circuit breaking current20/25kA
Rated short-circuit making current(peak)50/63kA
Breaking operations of rated short circuit breaking current30 times
Rated breaking current of single capaction bank400A
Rated short-time withstand current20/25kA
Rated peak withstand current50/63kA
Rated duration of short-circuit4s
Mechanical life20000 times
Contact closing force due to bellows and atmosphere80±40N
Counterforce at rated contact stroke120±50N
Circuit resistance at rated contact force≤25μΩ
Shelf life20years
Contact erosion limit3mm
Weight of moving parts ≤1.3kg

Mechanical Data Required for Matched Vacuum Switchgear

Rated contact stroke10±1mm
Average opening speed1.0±0.25m/s
Average Closing speed0.65±0.15m/s
Rated contact force2000±100N
Contact bouncing duration at closing operationS2ms
Contact bouncing bank amplitude of opening operation≤2mm
Three-pole simultaneity≤1ms
Note:*Rated characteristics to be given on request.

Overall dimension