| Other Electrical Engineering Interview Questions |
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| Question | Asked @ | Answers |
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| after parallaing two generators current is shooting up in
both the generators.for ex: load is 400 kw..after paralling
and load sharing current in running gen is approx 900 amps
and incoming is 750 amps which is too high when trying
toshift the load current in incoming gen is coming more
than 1300 amps and both getting tripped and making
blackout.. | | 3 |
| how to synchronize 4 nos. of diesel generator sets of
different capacity (kva)? | Bhel | 2 |
| what is merz price protection | NHPC | 2 |
| WHERE IS THE LIGHTING ARRESTER SHOULD BE PLACED IN
DISTRIBUTION LINES? | APTransco | 14 |
| IN TWO WATTMETER METHOD WE GOT W1,W2,WE KNOW V.HOW TO FIND
Q???????????? | APTransco | 3 |
| what happens when ac supply is given to D.C motor. | | 10 |
| How to convert resistance value at 20 degree to 90 degree? | | 2 |
| What is the meter used to check the DG sound level.and
pollution check | | 2 |
| What is working principle of ACB and VCB? | HCC | 2 |
| what happan when ac power transmitted in unity power factor | Maihar-Cement | 8 |
| How regulator control the fan speed? | | 4 |
| What is the diference between increased saety motors and
non sparking motors? | | 1 |
| what is main parts of alternator. | HP | 2 |
| 1> what r different types of fault in cables? How will u
locate and test these faults?
2> why earth wire is provided on top throughout the
transmission line. why not only on towers? How much area it
can protect?
3> what r different types of transmission losses? How power
loss can be minimized?
4> what is the % of power loss on transmission lines? | IOCL | 2 |
| if you short the any 2phase(R,Y,B),why fuse get blown? | | 3 |
| hw to find transformer is in normal position? whether its
in charged condition or not? except humming sound? | ABB | 7 |
| why we cant use AC supply products in DC supply? | | 14 |
| How to connect frequency meter in metering circuit?(single
phase and three phase frequency meter)phase to phase or
phase to neutral | ABB | 3 |
| what is difference between AC VVVF drive & Dc VVVF drive
explain their working principle? | OPS | 8 |
| Why the Motor takes High Current in Starting time? | | 3 |
| |
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