A power system with two generators is shown in the figure below. The s – McqOptions

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1.	A power system with two generators is shown in the figure below. The system (generators, buses and transmission lines) is protected by six overcurrent relays R1 to R6. Assuming a mix of directional and non-directional relays at appropriate locations, the remote backup relays for R4 are
A.	R1, R2
B.	R2, R6
C.	R2, R5
D.	R1, R6
Answer» E.

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