| Other Electrical Engineering Interview Questions |
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|what is earthing
|Why we use a H.T. Fuse from a thick wire, on other side we use
high rating of cables?
& Why we use less Sq. mm Cable on H.T. side , on other side we use Large Sq. mm cable?
|If Two Generators are working parellel in a network and
suddenly the field of one Generator get weakened What will
happened if there is no reverse power relay fixed in that
|what is the load amp of a 2 hp single phase motor?
|How we can calculate the capacity the Air Condition capacity?
like 1 or 1.5 ton's, What is the means of volume of Ton's in
capacity of Air Compressor? Why in ton's,? not any other
|how to calculate cable size, olr rating, contactor rating
and mccb rating,to below given details three phase motor
75 kw,415 v,.85 pf,50 hz?
|Any one can explain if there is any harm from humming noise
heard from air circuit breaker : we have 415 switch board
having two incomers from transformers 3.3KV/415V , when bus
coupler closed, and open one ACB incomer to work in one of
the transformers, the current started hunting around 50
Amps, and heard humming noise from the air circuit breaker,
although the load current was only 1200 amps while the ACB
capacity is 2500 Amps, and the transformer 1600 KVA. The
same didn't happen when taken the other transformer offline.
Why this humming noise and current fluctuation? is there
any implication or danger, bearing in mind that we just
returned everything back to normal and stopped the
maintenance of the transformer. Shall we go ahead and
ignore this noise?
|what is the harmonics.
|how to do 'pole drop test' on AC generator?
|Why Earth pits are inter connected
|How magnetic balance test of single phase transformer is
done,Especially in ESP transformer rectifier set.
|how we check vector group dyn7
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