Answer Posted / siddharth

minimum in IDMT refers to the minimum time.IDMT is relay
which has a characteristic of detecting a fault..ib which
the operating time has an inverse relationship with
magnitude of fault current.and the relay is such designed
that within a given time it has to trip the CB.thats whhy it
is called inverse definite medium time relay.

in my industry we are using 3 step up transformers for induction heaters..i.e 415/580v and other are 11/440v.in power consumption does a step trnsformer makes any difference compared to step up?? plz explain

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surge tank, hrc fuse, earthing transformer, firm power objective type

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Hello Guys !! i want to rrb section engineer electrical(signal) previous model papers? any body help me?

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what is the effect of power factor of machines in starting current

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What is reverse power relay?

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A 100KVA SINGLE PHASE TRANSFORMER 10000/200V,50HZ REQUIRES 300V AT HV SIDE TO CIRCULATE FULL LOAD CURRENT WITH LV SHORT CIRCUITED.THE INTAKE IS 1000W.THE % OF REGULATION ON FULL LOAD AT 0.8 PF LAGGING WILL BE HOW MUCH AND THE SECONDARY TERMINAL VOLTAGE ON 0.8 PF LEADING WILL BE

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