| Other Electrical Engineering Interview Questions |
|| Asked @
|how to calculate the cable size for LT and HT power cables
with detail explanation?
|what is neutral ground resistance relay? how it is helpful
in protecting system?
|How the starter control the starting current in three
phase AC Motor?(In DC apply the reistance).
|what is the meaning of transformer short circuit test?
|What are the fire Estingushers use in electrical fire?
|How many points can we have in AC Circuit?
Show by giving suitable example?
|Before i went to bed my master bathroom lights were working fine. At 2 am,
when I went to use the lights, none of them were working. The outlets
throughout the bathroom work, but the lights and fan above the toilet don't. I
have two panels of switches. The one panel has four switches. One of the
switches turns on the hall light, and that works. The other three are to other
lights, and they don't. The other panel has three switches. One of those is to
the fan, and the other is to a light above the toilet. The other is a to light that
is also on that other panel. I tried the breakers, and the one that turns off the
outlets, marked for the bathrooom, turns on and off the outlets. None
seemed to be tripped. I checked the lightbulbs, and they are fine. Please help
|I have recently seen a transformer which had two primary
terminals and was connected between two lines,i would like
to know what kind of transformer is it?short discription
about it,any advantages,purpose of usage of the
|MY QUATION IS ABT THE MAIN POWER TRANSFORMER IN STEEL
PLANT , I WISH TO KNOW THAT WHY TRANSFORMER PROTECTION NOT
TRIP AS CABLES ON THE SECONDAY SIDE IS WATER COOLED.
NORMAL KVA--150 KVA
PRIMARY VOLTAGE --34.5 KV
SEC.NO-LOAD VOLTAGE---1.290-908-690V ( WITH PRIMARY DELTA
CONNECTION--D/d (EXTERNAL CLOSED)
CONSTANT RATEING FROM--1.290-908V
CONSTANT CURRENT FROM--908-690
VECTOR GROUP--D III
|What are the difference between off-load tap changer and
on-load tap changer in transformer?
|what is the use of terminals in transformer ?
|why not use capacitor in Dg sets.
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