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Answer Posted / dilip sonawane
its an earth leakage circuit breaker,its has ct inside which ensures that return current by neutral is same as that of phase. if any value changes it get trip/operated.
for human safety we consider- 30ma
for equipment safety -300ma.
so ELCB r designed on above rated sensitivity value
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At the starting of dc motor and syn.motor and induction motor high current flowing through the winding. Due to this the windings burnt out. To avoid this different types of starters are used. But incase of transformer what Will be used (At starting no emf is induced in the primary winding)?
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