PCS-915SD distributed busbar protection includes busbar differential protection, busbar/circuit breaker protection (including overcurrent protection, fast make-to-short-circuit protection, dead zone protection, dual-CT dead zone differential protection and circuit breaker failure protection), feeder protection (including overcurrent protection, dead zone protection and circuit breaker failure protection). With the modular structure, flexibility and powerful PCS-Studio design tool, PCS-915SD provides future-oriented busbar solutions with high investment security and low operating costs.