Power transformers need to be protected from damages caused by internal and external faults. Power transformer can be protected from the internal faults by Differential Relay. This task is performed by relay protection which detects the fault situation and gives command to the relevant circuit breaker(s) to disconnect the faulty equipment from the rest of the power system. Power transformers are normally protected by differential protection relays.
Tuesday, February 25, 2014
DIFFERENTIAL PROTECTION OF A POWER TRANSFORMER
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