| Other Electrical Engineering Interview Questions |
| |
| Question | Asked @ | Answers |
| |
| what is electricial and mechnical interlock. | HP | 3 |
| Why don't we provide SURGE ARRESTORS for Transformer
feeders? | | 3 |
| Procedure for conduting vector group test on power
transformers.why it is conducted? | Grasim | 4 |
| why in three phase 440 circuit in all phase current is
almost equal L1-35 A,L2-34 A ,L3-31 A but in nutral when i
check with clamp meter it shows 25 A? | OPS | 2 |
| In stepdown transformer 11/415 volt two nos.(R & Y)HT side
fuse is blown ,what will be voltage of ry,rb,yb in
secondary side | NTPC | 4 |
| what is meant by GOD in transmission system ? | Reliance | 3 |
| can three phase induction motor rotate with only 2 phases
connected | | 13 |
| draw waveform of capacitor or inductor in a d.c ckt(during
transient) with zero resistance with it(in series or
parallel)also neglect resistance of wire | L&T | 2 |
| What is the required value while doing the megering | | 1 |
| why humming sound occured in HT transmission lines. | GE | 6 |
| when neutral will carry the current?what could be the
magnitude? | Voltas | 4 |
| What is the function of induction motor when low voltage is
apply. | | 3 |
| In 2500kva transformer how much is the withstand High
voltage power frequency between primary to secondary and
earth? And secondary to primary and earth? | Honeywell | 1 |
| why DC current not used in Transformer action? | Engineers-India-Limited | 11 |
| DOES A MAGNETIC CIRCUIT CONSUMES ENERGY? IF YES, WHY? | | 3 |
| DIFFERENCE BETWEEN POWER AND CONTROL CABLES | | 4 |
| how to detect the presence of underground cable(while
digging road)etc. -give the name of instrument | NTPC | 6 |
| why generation of electricity in low value voltage | | 2 |
| what is safety measures of transformers. | HP | 5 |
| RATING OF LIGHTENING ARRESTER FOR 11 KV LINE IS 9 KV BUT WE
KNOW THAT LIGHTENING ARRESTER IS USED FOR OVER VOLTAGE
PROTECTION SO WHY NOT THE RATING OF LIGHTENING ARRESTER BE
MORE THAN 11KV ???????????????// | Hakel | 3 |
| |
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