| Other Electrical Engineering Interview Questions |
|| Asked @
|why is electricity produced and distributed in multiples of
440V, 11KV, 22KV, 132KV etc
|why there is a temperature rise at different metal to metal
contact at cable lug??suppose cable is aluminium and the lug
is copper,than why the temperature rise takes place??
|What happens on the secondary of a 33kV/11kV when one phase
of the primary fuse blows?
|why voltage drop will occurs in 3 phase line?
|What is meant by knee point voltage?
|What is AVR in Generators and How is it working.
why generating power plant operating at above 0.9 lag?
I am a technical persons.In one of our Electrical Sub-
Station, We have installed three numbers of
1250KVA ,11KV/0.415KV Transformer to feed the Factory load.
We have found some abnormality. In one of our Transformers
the leakeage current from transformer body to earth through
earth continuity wire is almost 86 Amp but in other
transformer it is (5-10)Amp. where the load current on
three phase and neutral are respectively
1360Amp,1400Amp,1370 Amp & 176Amp. So please any technical
person help me about the reasons of this situation and how
I can rectify the fault. Moreover,I have measured the earth
resistance of the Earth continuity wire which is less than
|what's burden resistor, why it's used?
|what is the purpose of interpose t/f in control and relay ckts?
|What is meant by Active and reactive power?
|What is IGBT?Where it is used? What is the difference
between IGBT and Thyristor?
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