| Other Electrical Engineering Interview Questions |
|| Asked @
|why transformer ratings in kva?
|Q-1 what are the structural and operational difference between a distribution and a power transformer?
Q-2 what is skew in motors?
Q-3 draw equivalent circuit of transformer
Q-4 explain with phasors how pf is improved with loading in induction motors
Q-5 DIFFERENT METHODS OF CABLE LAYING(interviewer asked if i heard new chemical based earthing system next)
Q-6 pi model of medium length trans line
Q-7 v/f control?why
Q-8 vacuum circuit breaker operates in?
|How can calculate HT side VCB? For example I have 1250 KVA
load what will be HT side VCB Amp.range and what size XLPE
cable I use for HT side.
|Why a transformer Noise during its running condition ?
|what is phantom load, Give any example
|Why more than 2.5 MVA distribution transformers (secondary
is 440V)are not used in india.
|what happens when current(ac or dc)flowing through a
boucket of water?please describe it.
|what is meant by slip & where its occur ?
|What is working principle of washing machine?
|In transformers Which type of connection is preferred for
harmonics to be minimum.
primary : secondary
star without neutral:open delta
star with neutral :open delta
star without neutral: delta
star with neutral : delta
|In 2500kva transformer how much is the withstand High
voltage power frequency between primary to secondary and
earth? And secondary to primary and earth?
|how the arcing is made in ac electric arc furnace? ( between the
three electrodes in any sequences or between the electrode & the
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