can you give main difference between ELCB And RCCB?
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Answer Posted / sabarikumar r
ELCB is a voltage operated device.RCCB is a current
operated device.IN ELCB, Trip coil is connected between
system ground and non current carrying part of the
machines.RCCB having CBCT(Core Balanced Current
Transformer).CBCT consists of 2nos of primary winding
(P1,P2) and one secondary winding(S1).Primary windings are
in series with the load and secondary winding connected to
Trip coil.In case of healty time, voltage in both the
primary windings will be cancelled and hence no voltage on
secondary winding.During the leakge or If any body touch
the live wires of the machines, current will passing
through the body and connected to ground.It will cause the
voltage difference in primary windings and induced voltage
in secondary operates the trip coil(operating time 50ms).
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