| Other Electrical Engineering Interview Questions |
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| Question | Asked @ | Answers |
| |
| why DG neutral is earth?
| HP | 2 |
| What is difinition of HIGH RESISTANCE FAULT and LOW
RESISTANCE FAULT? | | 1 |
| Transformer's core is made up of which material and why so? | NTPC | 3 |
| Why a Transformer Noise during its running condition ?? | NTPC | 5 |
| WHY IS THE SIZE OF HOLE OF THE EARTH POINT IN THE PLUG
POINT BIGGER THAN PHASE AND NEUTRAL | | 4 |
| Rotor is taken away from three phase induction motor and
three phase supply is given to the stator.What will happen? | | 7 |
| which starter is used for synchronous motor | APTransco | 3 |
| What is C.T, why it is used and what care should be taken
for that while connecting?
| | 14 |
| if HT side voltage is high current is low . and LT side
voltage is low current is high please explian. | HP | 3 |
| What are the different protection systems used to protect
the transformer internally and externally?
| | 10 |
| WHAT AC (HI VOLTAGE TEST) VOLTAGE SHOULD APPLY FOR 33KV
CABLES.EXPLAIN IN DETAIL | | 5 |
| why free wheeling diode is connected across inductive load | Wipro | 7 |
| We have 800KW motor operating at 6600Volt,50 Hz
supply.During 1st startup it tripped on overcurrent
trip.It's FLA is 88 Amps.The K factor of Thermal overloaaad
was set on .94 initially.then we set at 0.97 and then it
started fine.i dont understand why it tripped first?What
are the protections which comes in picture during starting ? | | 3 |
| hi frnds can any one help me ? plz send me placement paper
of hpcl of Electrical streem ....
plz send ....its urgent . The hpcl test is on 17th feb. | | 1 |
| what do you know about electrical | | 7 |
| If the capacitor bank is installed in switchyard say
132/22kv then on LT side say 22kv/0.433kv is it necessary to
install capacitor bank for maintaining power factor. if pf
is maintained on HT side then will that be maintained on LT
side as well.if not then how&why??????/ please
explain........... | MacLellan | 3 |
| Why in DC drive u r using in Klin operation in Cement Plant? | | 1 |
| if we convert kva into Ampers,which one formula use by
us,pls tell me? | ABB | 1 |
| how to calculate no. of earthing pits and their diamensions?
no. of lightning arrester rods which are required to
protect a building of 35 mtr and we calculate? | Siemens | 2 |
| What is the unit of vaccum? | Manhattan | 9 |
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