Circuit breakers are highly critical to the power-protection system. They are required to physically interrupt the power flow in order to protect critical assets such as a power transformer. Breakers are relied upon to protect critical assets from abnormal electrical conditions in applications ranging from residential homes to high voltage transmission systems. In a home, a breaker is responsible for the protection of the home’s electrical system from excessive current flow. In a high voltage substation, breakers protect against fault current and are also used for transferring loads and controlling cap banks and other VAR compensating equipment. They ensure steady power factor and system reliability. A household breaker requires little maintenance. However, a high voltage circuit breaker is quite complex and is made up of three systems: mechanical, electrical and insulating.