TD 12kv 1250A 31.5KA (JUC619A) vacuum interrupter for VCB

الوصف

TD *2kv ***0A *1.5KA (JUC**9A)  vacuum interrupter for VCB

Main technical parameters
Rated voltage: *2 KV
Rated current: ***0A
Rated power frequency withstand voltage: *8 KV
Rated lightning impulse withstand voltage: *5 KV
Rated short circuit breaking current: *1.5KA
Rated short circuit making current(peak value): *0KA
Breaking operations under rated short circuit breaking current: *0 times
Rated short time withstand current: *1.5KA
Rated withstand current(peak value): *0KA
Rated duration of short circuit: 4 s
Mechanical life: *0,**0 times
Closing force due to bellows and atmosphere: **0±*0 N
Force required to hold contacts opening at full stroke: **0±*0 N
Circuit resistance at lowest rated contacts force: ≤*0μΩ
Storage life: *0 years
Limiting abrasion of contacts: 3 mm
 
Mechanical requiements of vacuum circuit breaker
Clearance between opening contacts: *1±1 mm
Average opening speed(Contacts closing position~*5% contacts opening distance): 1.1±0.2 m/s
Average closing speed(*0% contacts opening distance~contacts closing position): 0.6±0.2 m/s
Rated contacts pressure: ***0±**0 N
Contacts bouncing duration at closing operation: ≤2 ms
Contacts re-bouncing clearance at opening operation: ≤2 mm
Synchronism of three phases: ≤1 ms
* It Needs additional insultating protection.