PCS-924S is a busbar differential protection system, which is mainly designed for the protection of the T-zone of one and a half circuit breakers. The protection function of PCS-924S includes current differential protection, phase overcurrent protection and end-of-line short-circuit protection. With the modular structure, flexibility and powerful design tool of PCS-Studio, PCS-924S provides future-oriented busbar solutions with high investment security and low operating costs.