Answer / k.prakashchandra

Generally , P means potential ,M - Mains (incomer) L -load (
line).Po- Neutral.M and L are for CT terminals incoming and
outgoing respectively, when CTs are used

Answer / k.prakashchandra

In other words P1-P0,P2-P0 and P3-P0 are for potential
coils.M1-L1,M2-L2 and M3-L3 are for current coils.

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