Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why EMF IS INDUCED IN A CONDUCTOR WHEN FLUX LINKING WITH IT CHANGES ACCORDING TO FARADAYS LAW.

Sail,

1536

What is the concept of voltage & current its relation?

5 5283

what is the principle to generate energy from water or coal, plz define the step by step how & when electricity energy start from resource area to ours home meter & separate & how meter read the voltage or current?

1 2634

How to check phase R,Y,B

3 6157

What does OHB stand for in specifications for circuit breakers, especially found in SF6 circuit breaker?

1 4646

IN SOME CASE, WHEN I GIVE 24VOLTS DC AS INPUT, WHILE IN OUTPUT (THAT MEANS TERMINAL SIDE OF THE INSRUMENTS) I,M RECEIVING ONLY 6 VOLTS, WHAT IS THE REASON FOR THAT MUCH VOLTAGE DROP?

3 3820

why dc series moter is not started at no load?

IOCL,

5 23214

Is an SCR semi controlled device?

IOCL,

4 12367

What do u understand voltage reg. of an alternator?

IOCL,

1509

wd do u understand by stablity of ps?

IOCL,

2 3974

why ss stablity limit is more transient stablity limit?

IOCL,

1648

HOW THE AC GENARATOR CAN GENARATE REACTIVE POWER,HOW CAN WE CONTROL IT.AND OTHER SOURSES OF REACTIVE POWER GENARATIONS ARE WHAT.

3 4222

how can we run the induction motor at 9000 rpm ,by keeping frequency constant??

2 3617

HOW TO CALCULATE THE DOMESTIC POWER FACTOR?

3 5975

DOES AN EARTH FAULT CURRENT ON THE DELTA SIDE OF A 6.6/33KV STEP UP STAR-DELTA CONNECTED TRANSFORMER REFLECT ON THE STAR SIDE? IF YES, THEN HOW AND WHAT IS THE AMOUNT OF CURRENT REFLECTED?

1 4612


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Un-Answered Questions { Electrical Engineering }

If a rotary UPS is in line through grid power; What would be the impact on Power Factor if the load through rotary ups is 25% , 50% , 75% & 100%. Will the power factor reduce with less load?

1413


what is size of 3phase 4wire cable to be used for 11 ton ductable A.C and how to calculate cable size for different load

3584


How can I known multiplying factor .without multiplying table

1348


Two electric lamps 40 W, 220 V each are connected in series across 220 V. What is the power consumed by the connection?

965


what is the difference between delta delta and star delta connection transformer? why we use delta delta transformer since it need earthing transformer for grounding?

1619






how does high earth to neutral voltage affects electronic circuit?

1276


For overhead protection we use which transformer?

1931


how we find transformer capacity by ohm

1730


hi every body i am master student in control engineering and my project is slip control in trains i assumed a Dc motore as traction motor but i don't have characteristics of this kind of motor that is used in train. i want from every body if he or she has the characteristics or information about Dc motor that is used in train give me those information or technical characteristics .

1053


what types of electrical & mechanical test conducted in switchyard?

1678


A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram

2367


What is tan delta & PPM in transformer? and whats its IS value?

1587


what is under coal gassification?

1624


dear all i am kumara now current working in electrical designing of control and relay panel i want learn some substaion design then any book are available. pls mention name and authour

1504


What is proportional controller?

687