Answer Posted / pattabiraman
RMU :-
Normally used by Electricity Boards
Ring Main Unit - Consists of 2 nos Isolators and one No
Circuit breaker. of 200A to 630Amps capacities
2Nos isolators used for Incoming as wells as Out going to
another Ring main unit or vise versa,
The Circuit breaker is common to both Isolators in the RMU
Used as out going to Distribution Transformer
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