In the world of power systems, circuit breaker failure protection has become a critical element in providing backup protection for circuit breakers (CBs). In practice, each appliance is equipped with primary protection to interrupt the flow of current whenever a fault occurs. Therefore, the breaker failure relay opens adjacent breakers to isolate the problem. A fast and safe switch fault detection algorithm would pose a critical challenge for a digital BF relay. In the first part, the need for circuit breaker failure protection is presented. The second part addresses issues that are worth considering when applying circuit breaker fault protection, and finally advances towards circuit breaker fault protection. The use of algorithms significantly improves the numerical protection of the BF. INTRODUCTION Contingency analysis remains one of the major tasks facing security engineers. The reason for this is because a protection engineer must focus on Murphy's law and Ohm's law at the same time. The design of PRS plays a key role in detecting any faults occurring in the power system and the possibilities of occurrence of any faults in the power system protection system. When the protective relay system is in order, the power system designers understand it but the condition changes when a fault is detected. Finding solutions to this failure is what makes a security engineer skilled. The security engineer can only be successful by understanding how the system works. The best approach the engineer can take is to have a correct understanding of each component of the system, as well as their necessary interactions and overlaps.I. THE NEED FOR SWITCH FAILURE PROTECTION To successfully analyze this topic, the differences between fault detection...... middle of the paper...... protective relay conference.[2] D. Ebehard and E. Flannery, Innovative solutions for voltage transients in CCVTs on high-voltage transmission systems, presented at the 2nd Int. Conf. Power 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 for power system forwarding,” IEEE Transactions on Power Delivery, vol. 18, no. 4, Oct. 2003, 1158 – 1165.