Sf6 Circuit Breaker. The sf 6 circuit breaker is mainly divided into three types. In an sf6 circuit breaker sulphur hexafluoride gas is used as the arc quenching medium.
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In sf6 circuit breakers sulphur hexafluoride sf6 gas is used as the arc quenching medium. Due to high electronegativity it has a high affinity for absorbing free electrons. Instead of oil air or a vacuum a sulfur hexafluoride circuit breaker uses sulfur hexafluoride sf 6 gas to cool and quench the arc on opening a circuit.
Sulfur hexafluoride circuit breakers protect electrical power stations and distribution systems by interrupting electric currents when tripped by a protective relay.
The contacts of the breaker are opened in a high pressure flow of sf6 gas and an arc is struck between them. An sf6 circuit breaker is a type of circuit breaker in which sulphur hexafluoride gas or sf 6 gas is used as the arc quinching medium known as an sf6 circuit breaker. An sf 6 circuit breaker rated 115 kv 1200 a installed at a hydroelectric generating station. Sf 6 gas has excellent insulating property and it has a high electronegativity.
