| Other Electrical Engineering Interview Questions |
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|One of our gas turbine generator unit "1st stage rotor
ground fault" alarm was occured several times. we tried to
measure some voltage vulue ground fault protection relay
(UNS3020a made by ABB and we measured the value of:
u+: 300 – 350mVAC
The unit still running and the alarm was reset. As of 6pm
yesterday and unitl now no alarm happened again. I our
protection relay was defective?
|WHY VOLTAGE REGULATION OF AN ALTERNATOR IS NEGATIVE FOR A
LEADING POWER FACTOR?
|What happen if 1200KW/1500KVA alternator runs at no load
and high R.P.M.for one minute?
|WAHAT IS ELECTRICITY
|what is the tolerance of electrical frequency for India?
it's .5% or 1%?
|which is better 50 HZ supply or 60 HZ supply?
|is any body explain me why return current in three phase
power system is less then in a red, yellow, blue phases???
as we know Ir+Iy+Ib=In then why nutral wire has less then
|what is the formular for the calculation of CT'S when
installed as part of a electrical installation so the
correct meter is used
|How much current can a 3-1/2 core 100 mm wire carry?
|Where there is voltage,there must be current.Is this right
|how to identified power tranfer line is how much KV????
|what are the method of testing of transformer??
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