In a world of electrical systems, circuit breaker failure protection has become an essential element in providing backup protection to circuit breakers (CBs). Practically, every device is equipped with primary protection to interrupt the flow of current in the event of a fault. So the circuit breaker failure relay opens adjacent circuit breakers to isolate the problem. A fast and secure circuit breaker fault detection algorithm would be a crucial challenge for a digital LF relay. In the first part, he introduces the need for circuit breaker failure protection. The second part discusses issues worth considering when applying circuit breaker outage protection and, finally, advances towards circuit breaker outage protection. The use of algorithms significantly improves digital BF protection. INTRODUCTION Contingency analysis remains one of the major tasks facing protection engineers. The reason is that a protection engineer must focus on Murphy's Law and Ohm's Law simultaneously. The design of the PRS plays a key role in detecting any fault occurring in the electrical system and the possibilities of any fault occurring in the electrical system protection system. When the protective relay system is in order, the electrical system designers understand it but the state changes when a fault is detected. Finding solutions to this failure is what makes a protection engineer competent. The protection engineer can only succeed by understanding how the system works. The best approach the engineer can take is to have a good understanding of each component of the system and their necessary interactions and overlaps.I. THE NEED FOR CIRCUIT BREAKER FAILURE PROTECTIONTo successfully analyze this topic, the differences between fault detection...... middle of document ......Protection Relay Conference.[2] D. Ebehard and E. Flannery, Innovative Solutions to Voltage Transients in CCVT on High Voltage Transmission Systems, presented at the 2nd Int. Conf. Electrical System Protection, Stuttgart, Germany, 2005.[3] Héctor J. Altuve, Michael J. Thompson, and Joe Mooney, Advances in Breaker-Failure Protection Schweitzer Engineering Laboratories, Inc.[4] IEEE Power Engineering Society, Draft 7 Guide for Breaker Failure Protection of Power Circuit Breakers, USA: New York, NY. Institute of Electrical and Electronics Engineers, Inc., 2005. Print.[5] MHJ Bollen, Traveling Wave Based Protection of Double Circuit Lines, IEE PROCEEDINGS C, Vol. No. 140, No. 1, JANUARY 1993.[6] OAS Youssef, “Online Applications of Wavelet Transforms to Power System Relays,” IEEE Transactions on Power Delivery, Vol. 18, No. 4, October. 2003, 1158 – 1165.