Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why are tertiary windings used in transformers?

2 7352

Why do series motors have high starting torque?

3 8779

Can an inverter be used as a converter? How?

1453

Why is copper a better conductor of electricity than aluminium?

AES,

5 8984

What is meant by single line diagram?

2 10850

What is EOL?

1 3450

Difference between single phase and three phase?

1 4997

How does numerical relay work?

1 3794

Can VFD step up to 60 Hz if it is designed to receive 50 Hz input?

3 5007

How current is reduced in STAR connection?

6 28683

Differenc between the resistance and resisters?

5 5511

Why the Voltage rises when Leading Power Factor is occurs?

2 5611

how to make an earthing certificate

1736

what is your aim

L&T, TCS,

1419

DGs fuel and lube oil filters are not equal to one another.Why it is so.For example one MTU enginee fuel filter is one and lube oil filter-02nos other DGs are more.Please explain

1 2012


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Un-Answered Questions { Electrical Engineering }

what are the principles of a booster converter?

1542


11kv/433v delta/star distribution transformer primary side full load Ht current is 83.33A in , but input side VCB rating 800A.why?

1177


why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving

1563


if 6 earth pit value is 1.5 ohm then what should be the number of earth pit to make the value .8 ohm

1672


WHAT IS LOAD CELL

1667






transformer spections :: input voltage 0-110-230v; output volage 0-10-12-14v; amp=3A using CRNO CORE, capcaity=50VA primary turns = ? ; secondry turns =?

1627


How can I calculate the Mega watts required to run a plant having many electric motors and other electrical components.

1635


how we decide wire gauge for ac or dc coil and what is the basic diff. B/w these two coil?

1643


What is mean by STUB protection?

1556


Why are short circuit ratings always 16kA,25kA,36kA and 50kA.Who has fixed these?

3790


How cmd is calculated in case of energy neters

1354


what is sevice settings for mccb?How can be it setted?

1459


i want to run 11kv star connected motor in 6.6kv with delta connected throught inverter, is it possible?

1583


I am an American living in Vietnam and I have recently gotten a refrigerator from Japan and it is rated for 100 vac, but the power here is 220 so I bought a voltage stabilizer it has a 1 kva output rating. Can you please tell me what the amperage is? I'm confused and without a working fridge.

1243


Explain Active power,reactive power,how its related to each other , & inductive ,capacitive.

1435