Safety maintenance requirements for power circuit breakers

This paper looks at the most common issues causing circuit breaker malfunctions. Power circuit breakers protect electrical power systems from damage and people from injury or death if a fault were to occur during maintenance or operation of the system. If the circuit breakers are not maintained they cannot be depended upon to function in accordance with the manufacturer´s specifications. This paper reviews findings of Shermco´s Circuit Breaker Shop while working on customer´s circuit breakers.