Gas cover opening and closing test pressure cover and gas circuit breaker opening / closing test method

摘要

Problem to be solved: to open and close the gas circuit breaker while the if cable is removed.Solution: the pressure cover 1 for opening and closing the gas circuit breaker is attached to the other end portion of the metal pressure vessel 102 in the state where the if cable head is removed, and the gas is sealed into the metal pressure vessel 102 from the filling valve 3 of the gas cover opening / closing test pressure cover 1, and the pressure in the metal pressure vessel 102 is set to a predetermined pressure, and the gas blocking device 101 is opened and closed in this state.Diagram