Transmission Line Differential Protection Based on Microprocessor Relays

Saeed Roostaee, Mini Shaji Thomas, shbana mehfuz


Nowadays, in digital substation, lots of new technologies such as microprocessor relays and communication technology bring lot of advantages for protection functions. Differential protection plays a very important role because of absolute selectivity for isolating the faulty part. This paper reviews transmission line differential protection based on microprocessor relays.

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