Difference Between Circuit breaker and Isolator

An isolator is a disconnecting switch which operates under off load condition. It isolates the part of the circuit in which the fault takes place from the main supply. It is used in high voltage devices such as transformers, etc. Isolators block the DC signals and allow the AC signals to pass. Circuit Breaker is…

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sf6 circuit breaker

Sulphur Hexaflouride (SF6) Circuit Breakers

A circuit breaker in which the current carrying contacts operate in  sulfur hexafluoride or SF6 gas is known as SF6 circuit breaker. SF6 is a very good dielectric material which can resist high potentials.SF6 gas is used as the arc quenching medium Sulfur Hexafluoride (SF6) is an electro-negative gas and has a strong tendency to absorb free electrons. Whenever circuit breaker opens…

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