| Other Electrical Engineering Interview Questions |
| |
| Question | Asked @ | Answers |
| |
| how to find motor contactor rating and bimetalic relay
rating? of 30kw motor which will operate on star-delta
starter? | L&T | 3 |
| What is power factof? | RRB | 12 |
| wht is the difference between volatge and wattage ? how
can it be converted ? (like 15w = 6v ) like tht... ?
actually what tht means ? | | 1 |
| lllg,llg,ll,lg,lll which fault is severe and why? | GE | 1 |
| can you give main difference between ELCB And RCCB? | Wipro | 10 |
| how to select cable size? | | 2 |
| Can we use the 60 HZ transformer/rectifier/Motors/Coils in
50 HZ? if not so, why? | | 2 |
| how vfd drives energy save | PowerTech | 2 |
| What does VVVF stands for in VVVF drive ?
How does it differ from VVF drive? | HAL | 2 |
| What do you mean by S.F.U. unit? application of it. | | 4 |
| WHAT IS MVA RATING OF KOTHAGUDAM THERMAL STATION POWER
TRANSFORMER? | Power-Grid | 1 |
| Why capacitor bank does not require in DG Set? | | 1 |
| What are the different protection systems used to protect
the transformer internally and externally?
| | 10 |
| what is ground fault current? is there any current flow
takes place through ground? is it possible? if it's
possible whether it affect human beings on earth near the
fault or not? | | 1 |
| megger generates D.C. voltage while earth tester generates
A.C.voltage is it true? I know for megger it is D.C
generator but what about earth tester? | IOCL | 1 |
| Why the core of a underground cable is spiral in shape
instead of straight?? | Mecon | 2 |
| for ac networks if the voltage wave form is V=Vm sinwt here
the voltage Vm=230 for the frequency 50hz then the time
period is 0.02 sec then for the time period 0.12 sec what
is the voltage | | 2 |
| What is the effect if power factor is above 1 or unity. | | 6 |
| We know that, in case if there is a faulty insulation,or
sc, the current is bypassed to earth through the earth wire
that has low resistance.Actually, what will happen to that
current that flows through gnd?In that case,if we come in
contact with that faulty appliance, wont that current flow
through us as we form a closed path by standing in gnd?Is
grounding a safety measure? | | 3 |
| PLEASE EXPLANE WHAT IS " MOSFET AC CONVERTER"? WHERE AND
HOW IT IS USED? | | 2 |
| |
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