Gas Decomposition And Its Effects In The Operating Mechanism Of Sf6 Circuit Breakers

During operation, the gas produced by sf6 circuit breaker operating mechanism will be partially decomposed under the action of the electric arc, forming some chemically active products. Especially when the high voltage current is interrupted, it can be rapidly decomposed into fluorides, sulfides and other by-products. These chemical substances may be corrosive. The high temperature of the electric arc excites the chemical bonds in the gas molecules of sf6 circuit breaker spring mechanism, leading to the decomposition of the gas and the generation of harmful gases.