EK Electrical Oct 2024 (Q9)

With reference to reverse power protection for a.c. generators operating in parallel:

(a) Explain why traditional reverse power relays, operating on mechanical principles, have been replaced by electronic digital microprocessor types (2)

(b) Describe, with the aid of a sketch, a generator reverse power protection circuit that uses an electronic phase sensitive detector. (8)

10 marks

Oct 2024, Oct 2023

Generator & circuit protection

Oct 2024 (Q9)