Enhancement for Circuit Breaker Failure Protection in Transmission Substations

Currently, due to the growth in the industrial sector and the increase in the demand for power, the electrical power system has evolved. The modern power system is a complex system, which consists of power plants, transmission networks, different types of loads, and substations with advanced levels of automation, communication, and intelligent devices. The electrical substation is an essential component in power systems alongside generators, transmission systems, and distribution networks. This paper aims to present the transmission substation enhanced alternative version of circuit breaker failure protection system. The circuit breaker failure protection is achieved in utilizing the protection function comprised in the circuit breaker management protection relay. Therefore, CBF will continue to operate should a designated Circuit Breaker (CB) fail to isolate the fault. The outcomes of this paper aim to show that the proposed protection circuit is able to isolate the fault effectively and will protect the substation when the designated CB fails to operate.