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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why induction motor can not be operated at synchronous speed?? what would happen if it is operated at synchronous speed??

5 25731

can we coorect P.F. OF 320 KVA ALTERNATOR AT LOCAL SITE WITH RATED .8 PF LAGGING.

1 3416

sir, i want to know the calculation for find rated current for cable sizes.(both copper & aluminium) with examole. please sir for example: 35sq.mm al.cable is withstands for how many amps? is suitable for 45kw motor?

L&T,

5 12850

what can be the causes of capacitor start motor having a higher current that its actual

1974

How to calculate per unit impedance of transformer?

2211

Why the output of generator varies eventhough the shaft speed is constant in thermal power plant?

5 7368

what is meant by phase transformation ratio in induction motors?

2 15247

why generator one end side star neutral point given? if this point not given what happen?

1 4077

what happen if turbine trip ,g.c.b not open and excitation on condition?

1 5220

what happen if steam turbine trip,g.c.b not open and excitation off and on condition?

1 4302

why capacitor is not discharged phase to body

1 3540

Why the electron flow in reverse of current.

6 9578

What is the function of an Auto reclosure relay. How does it work??

KSEB,

4 18455

What is EHT tariff or Power factor Tariff ????

KSEB,

2347

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

SISL,

1985


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

Difference between ac parallel circuit and ac series circuit?

2119


What are the characteristics of negative feedback?

1072


Draw a 230kv two-bus bar system showing the following. 1.Two generators (150MW) each connected through one 15.75/230KV transformers 2. 1 outgoing lines 3. Two 230/130 KV transformers 4. BUS PT's 5. CT

2590


HOW TO REDUCE POWER PLANT AUXILIARY POWER CONSUMPTION?

3419


what is the diference between the 4pole & 6pole DC Motors & what is advantage 6pole over the 4pole ?

1897


What determines the thickness of the lamination or stamping?

1652


what is the difference between c power and U power acb breaker

6421


What is a dominant pole?

1169


Why colled 440V to 3-phase supply.

2154


if we have a industrial load of 400 kilowatts with 415 volt AC then how much total harmonic distortion (thd%) should be acceptable for steady power system.

1984


Why corona leads to production of Ozone and glow of the color VOILET?

1984


explain the function of brush less dc motor?

2100


WHAT IS LOAD CELL

2160


How do i perform grounding of star point of Genset (400V) for making connection with step up transformer of DELTA-DELTA (400V to 20KV) ? while Genset itself has its own neutral and grounding bus bar inside genset breaker box whereas we have another neutral and grounding busbar in synchronizing panel next to genset at maximum distance of 6meter, would someone pls advice if we can only perform neutral grounding in synchronizing panel or should we ground neutral on both places inside genset breaker box and synchronizing panel.

1748


Iwould like to know barc interview questions

3252