| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Electric Type |
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Vacuum Circuit Breakers (VCB) have long been a cornerstone in the realm of electrical power distribution and transmission, providing reliable protection for electrical circuits by interrupting current flow during fault conditions. Among the various types of VCB, Solid Insulated VCB (SIVCB) have emerged as a notable advancement, offering enhanced performance, safety, and reliability. This article delves into the key features, benefits, and applications of Solid Insulated VCB, highlighting their significance in modern electrical systems.
| Main technical parameters | |
| Rated voltage | 12kV |
| Rated current | 630/1250A |
| Rated frequency | 50HZ |
| Rated short-term power frequencywithstand voltage dry test | 48kV Between phases, phase to earth 42kV,Acrossthe interrupter,across isolatingdistance:48 kV |
| Rated lightning impulse with stand voltage | 85 kV Between phases, phase to earth 75 kVA cross the interrupter, across isolatingdistance:85 kV |
| Short-time withstand current | 25kA |
| Duration of short-circuit | 4S |
| Peak withstand current | 63KA |
| Short-circuit making current | 63KA |
| Short-circuit breaking current | |
| AC component | 25KA |
| DC component | 51% |
| DC time constant | 45 ms |
| Mechanical endurance | Circuit-breaker:10000 times, Class M2. Disconnector: 3000times. class Ml: Earthing position: 3000 times, ClassM1 |
| The degree of protection | Enclosure: lP4X |
| Partitions: IP2X | |
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