SF6 Circuit Breaker Types and Operation of SF6 Circuit Breaker

SF6 Circuit Breaker A circuit breaker in which sulphur hexafluoride gas or SF6 gas is used as the arc quinching medium, known as an SF6 circuit breaker. SF6 gas has excellent insulating property and it has a high electronegativity. Due to high electronegativity, it has a high affinity for absorbing free electrons. It absorbes electrons … Read more

Electrical Circuit Breaker | Operation and Types of Circuit Breaker

What is Circuit Breaker? An electrical circuit breaker is a switching device which can be operated manually and automatically for controlling and protecting an electrical power system. As the modern power system deals with huge currents, special attention should be given during designing of a circuit breaker to ensure it is able to safely interrupt the … Read more

Oil Circuit Breaker Bulk and Minimum Oil Circuit Breaker

Mineral oil has better insulating property than air. In oil circuit breaker the fixed contact and moving contact are immerged inside the insulating oil. Whenever there is a separation of current carrying contacts in the oil, the arc in circuit breaker is initialized at the moment of separation of contacts, and due to this arc … Read more

Air Circuit Breaker Air Blast Circuit Breaker

This type of circuit breakers, is those kind of circuit breaker which operates in air at atmospheric pressure. After development of oil circuit breaker, the medium voltage air circuit breaker (ACB) is replaced completely by oil circuit breaker in different countries. But in countries like France and Italy, ACBs are still preferable choice up to … Read more

Vacuum Circuit Breaker or VCB and Vacuum Interrupter

A vacuum circuit breaker is such kind of circuit breaker where the arc quenching takes place in vacuum. The technology is suitable for mainly medium voltage application. For higher voltage vacuum technology has been developed but not commercially viable. The operation of opening and closing of current carrying contacts and associated arc interruption take place … Read more