Answer Posted / prabhu gnanasekaran
RMU Stands for RING MAIN UNIT.
iF IT IS Power motor control center there will be 2 i/c
with a tie switch whereas if one fails the bus - coupler
gets closed then the routine loads are supplied this
arrangement is provided inorder to avoid the interruption
in power cut.
RMU also falls on the same concept but there will be 2 or
more incoming cable from different sub station but of same
voltage levels.
RMU comes into picture for uninterpted power supply for
industrial sectors also for other sectors.
RMU IS a big topic on protection and other basic things
which cannot be concluded in this.
it is crisp information that all
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