difference between isolater and circuit breaker?
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Answer Posted / ashoke
Both are used for isolating/breaking the circuit.Isolator is
used for breaking dead circuit and circuit breakers are used
for breaking live circuit.For an example A.B.switches are
isolators wheres O.C.B,V.C.B,SF6 etc.are circuit breakers.In
isolator there is no arcing due to operation for dead
circuit,so no arc quenching medium is required.But due to
live circuit there is arc quenching medium is necessary so
in circuit breakers the medium are like oil,vacuum,SF6
etc.The isolators are mainly used for protection purpose
isolation of circuit.
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