Abstract:

Abstract:With the smart grid construction launching, based on generalized measurement information from the system, protection design and setting of the substation are paid more and more attentions. Realization mode and shortcomings of the busbar’ failure logic protection and CT failure are analyzed. The solution are given based on the substation protection. It’s testified that the substation Area Relay Protection can overcome the shortcomings for the limitations of the traditional protections through the dynamic simulation test. Sensitivity and reliability of the of the relay protection are further bettered.

Key words: Keywords:substation area relay protection, busbar protection, failure logic, CT failure