Electrical Engineering Interview Questions
Questions Answers Views Company eMail

is electrons really flow or they just vibrate at their position?

Bhel, HAL,

5 7762

Will it be OK to connect a 5MVA 33/6.6kV Ynd11 Transformer to a Star connected Motor. Or on other words connecting a Delta to a Star. I have another 30MVA 33/11 Dyn11 and would it be practical to convert it to Dd0 consequently converting the Voltage Ratio to 33/6.35kV Dd0.

1 4600

Why mostly conductor made by 7 nos wire?

2 3523

If not maintained 3 phase clearance,what happened ?

2 2913

how to calculate 3 phase clearance in Tower line , 33& 11 KV Line and LT Line.

1 2806

what is the difference between neutral and earth?

2 4529

why mostly conductor made by 7 nos wire?

1 3063

What happened ,If 3 phase clearance not maintained in 33KV Line,11KV LIne etc?

1811

How to calculate phase to phase difference ?

1709

How to calculate phase to phase difference in 33KV Line ,11KV Line etc.

1 7235

what will happen if capacitor bank is used in generation side?

2 4905

In synchronous motor, how the field current is related to armature current..i know its inversely proportional..but concept wise...i was nt clear....pls help me...

Siemens,

1564

how can we calculate the ratio of caustic soda and water in lrs.

5165

what is hourly consumption of coal in therma plant

NPCIL,

2 4057

if field winding of synchronous generator are shorted on each other will it start or burn or run for short time like induction motor

1 2369


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Un-Answered Questions { Electrical Engineering }

How relay works, reverse relay, master relay, os relay, earth fault relay and what is its setting point

1192


why and how voltage sharing in transformer, during magnetic balance test ?

1793


I'm looking for a softcopy manual set for a Credence ASL- 3000. Anyone know where I can get it?

1624


Testing report of Earthing of 3.15 MVa PTR.

2119


What is the maximum No. of out going mccbs permitted from an LV distribution paqnel? What is the ampere relation between incomer and out going switch gears/mccbs?

1454






What is the function of electron gun used in crt?

592


how to store the thunder power?

3750


How to do cable earhing? whether by grounding Armour to ground or by running extra G.I wire along with cable? which one is preferred mostly amoung them? If the second one is more preferable how many GI wires to be run along with cable (1 or 2)?

1580


Why IR value of the (HT cable Plus synchronous motor) is less while individually having IR values in GΩ?

1343


i am in need of AC SYNCHRONUS MOTOR 30KW. ANY ONE KNOWS THE MANUFACTURER OF SAME. ALSO MOSFET AC CONVERTER 20KVA CONT.OUTPUT.

1456


What are :- AC Distribution Board (Single & Double Front) DC Distribution Boards Distribution Board LT Breaker Panel.

1611


i want design of D.C.MOTOR 1HP 960RPM AND 2HP 960RPM ITS URRGENT

1545


What si the d/f b/w KVA & KWH, kvarh & kvar, kwh & kvar phase voltage & line voltage

5582


If more than rated DC voltage appears across trip coil of the breaker, what will happen? e.g. in 110V DC circuit system, if voltage across battery terminal showing 121 V

1182


Why delta star trformers are used for lighting loads?

727