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difference between isolator and circuit breaker?????
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Answer Posted / dharmesh
Circuit Breaker is a device which can
Make or break circuit under normal conditions either manually or through remote control.
and
Isolator or Isolating Switch is a device which is used to disconnect a part of the system for maintanance purpose and repairs.Isolator can open a circuit under no load condition only.If two isolators are connected on either sides of circuit breaker,then the circuit breaker must be opened before opening the isolators.
After perfoming maitanancee work on the circuit breaker,isolators must be closed first and then the circuit breaker must be closed to bring the system into operation.
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