Hubei Jucro Electric Co.,Ltd
Vacuum Interrupter TD 12kv 1250A 31.5KA (JUC618) for VCB
| Categories | Vacuum Interrupter |
|---|---|
| Album | View larger image |
| Brand | JUCRO |
| Model | JUC618 |
| Unit Price | US $ 130 / piece |
| FOB port | Shanghai/Ningbo |
| Terms of Payment | L/C, Western Union, MoneyGram, T/T |
| Download DOC |  |
| Update Time | 2019-04-21 |
TD 12kv 1250A 31.5KA (JUC618) vacuum interrupter for VCB
Main Technical Parameters
Main technical parameters Rated voltage: 12 KV Rated current: 1250A Rated power frequency withstand voltage: 42 KV Rated lightning impulse withstand voltage: 75 KV Rated short circuit breaking current: 31.5KA Rated short circuit making current(peak value): 80KA Breaking operations under rated short circuit breaking current: 30 times Rated short time withstand current: 31.5KA Rated withstand current(peak value): 80KA Rated duration of short circuit: 4S Mechanical life: 20,000 times Closing force due to bellows and atmosphere: 120±50N Force required to hold contacts opening at full stroke: 190±50N Circuit resistance at lowest rated contacts force: ≤20μΩ Storage life: 20 years Limiting abrasion of contacts: 3 mm
Mechanical requiements of vacuum circuit breaker Clearance between opening contacts: 11±1 mm Average opening speed(Contacts closing position~75% contacts opening distance): 1.1±0.2 m/s Average closing speed(30% contacts opening distance~contacts closing position): 0.6±0.2 m/s Rated contacts pressure: 3150±200 N Contacts bouncing duration at closing operation: ≤2 ms Contacts re-bouncing clearance at opening operation: ≤2 mm Synchronism of three phases: ≤1 ms
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Mechanical requiements of vacuum circuit breaker | ||||||||||||||||||||||||||||||||||||
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