Vacuum interrupter for vacuum circuit breaker

Detailed Product Description

Main Technical Data

Rated voltage     12kv

Rated current     630A

Rated frequency   50/60Hz

Rated short-time power frequency withstand voltage(1min)   42kv

Rated lighting impulse withstand voltage(peak)             75kv

Rated short-circuit breaking current          16/20kA

Rated short-circuit making current(peak)       40/50kA

Rated operations of short-circuit breaking current interruption  30operations

Rated single capacitor bank breaking current    630A

Rated back-to-back capacitor breaking current   400A

Rated short-time withstand current      16/20kA

Rated peak withstand current          40/50kA

Rated duration of short-circuit          4s

Mechanical life                     20000operations

Contact closing force due to bellows and atmosphere    70±40N

Counterforce at rated contact stroke     120±50N

Ciruit resistance at rated contact force   ≤30µΩ

Shelf life              20years

Contact erosion limit     3mm

Weight of moving parts   ≤0.7kg

Rated operation sequence  O-0.3-CO-180s-CO