provide Insulation
provide cooling of contacts
quenching arc
none of the above
to act as circuit breaking medium only
for circuit breaking and providing insulation
for providing insulation only
for none of the above purposes
Bulk oil type circuit breaker
Air blast circuit breaker
Vacuum circuit breaker
Sulphur hexafluoride circuit breaker
Oil circuit breaker
Air blast
Minimum oil
Bulk oil
Sulphur hexafluoride