CCommunity
- Air blast circuit breakers employ a high-pressure air blast as an arc quenching medium. Under normal condition, the contacts are closed
- When a fault occurs contacts are opened and an arc is struck between them
- Auto-reclosing is used in case of air blast C.B.
- Reclose is a circuit breaker along with protection system for overhead power lines & designed to reclose on to a fault
- It detects a fault and opens for a pre-programmed time, before closing again automatically. This cycle can be repeated 4 times