Double break arc quenching circuit breaker with improved current limitation

摘要

An arc quenching arrangement for double break circuit breaker is provided. It consists of a double break contact system having two fixed contacts connected to two corresponding moving contacts for carrying rated current. Two arc chambers are positioned around each contact points. An arc runner is provided in each of the arc chamber where one end of the arc runner mounted below the arc chute and another end of the arc runner having a bent loop profile forming parallel face. An arc jumper connects ends of the arc runners to move the arc generated at any of the fixed contact due to opening of contacts due to fault current. The arc is transferred from one side of the double break system to another achieving better arc quenching.