At light load transformer efficiency is less because
A secondary output is low B transformer losses
are high
C fixed loss is high compared to output
D
copper loss is small
why neutral is required in electrical system
why the flooring of substation is done with small pebbles or stones..?
do we use links in a dc circuit?if so what s its use in it?
What happens to voltage when current is zero?
What is the difference between KW & KVA ?
what is different between electrical ckt&electronic ckt
in single phase converter, the no.of scr's conducting during overlap a)1 b)2 c)3 d)4
Transformer TTR test procedure
Off-circuit Tap changers in distribution transformer required
Write the current equation in series RLC circuits.
0 Answers Agilent, Integreon, ZS Associates,
1)which height building required lightning arrester? 2)how to calculate the requirement of lightning arrester? 3)what is the pro instrument? 5)how to test protective relay like overload?earth fault relay?
can we use only a isolator in the subtation..
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