Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

1.what type of wave is produced from i.online ups ii.offline ups iii.inverter.why don't we use inverter instant of offline ups for computer,what's the reason?

2 4599

what is d meaning of inrush current of a trafo ? how u can calculate this ?

Jindal,

1 3737

How to do the meggering for a cable.

6 14333

What is the use of doing meggering for a cable

2 7926

What is the use of insulation tester and how it is to be used.

2 4902

What is the required value while doing the megering

1 7389

what is voltage

TCS,

7 8954

what is the full load current and power rating of 1 Tonne Air Conditioner?How will Calculate?

2 4874

HOW WE CHOOSE EARTH'S POTENTIAL AS ZERO V?

2012

What is the si unit

2 4442

Why Parallel operation of two Transformer are Required?

6 14486

What is I/P converter?

RRDonnelley,

1 4066

When the power Factor (p.f)is lead then how the Voltage can rises?

1 4350

The rating of Transformer are 11KV, 22KV, 33KV instead of 10KV, 20KV & 30KV?

2 6841

What is Generator Protection & Transformer Protection?

Areva,

3 12429

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Un-Answered Questions { Electrical Engineering }

In the ACB breaker capacity is 2000Amp but this each phase taken 1250 But total beldibg load is 600amp or 700amp watt is the problem

1920

how does the thyistor work in dc drive?

1940

What is the importance of counter based plan & how is it scheduled?

1980

Hoe do calculate the Cable size for Amps rating ?

2088

use of choke in APFC panels

5722

Explain the process of commutation in a dc machine.

1001

anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?

1833

what is a speed of rotor when we give supply to stator of 50hz and as well as rotor of 60hz of an induction motor?????

1604

Distribution transformer we provided 2 separate earthing pit for Body and 2 separate earthing pit for neutral,we can not connect separate body earthing pit to other earthing pit but we do metal glanding in secondary side cable termination in both side, transformer and PCC panel (LT Panel), is this safe for transformer and other equipment?

1690

why occ characteristics curve in not tracing back when we are bringing back the rhoestat?

1824

. How to calculate the Short Circuit Impedance in Transformer? How to calculate the Short Circuit Impedance in Transformer?

2090

EXPLAIN THE WORKING OF SERIES REACTOR IN HT CAPACITOR BANKS (FOR VOLTAGES & CURRENTS)

8215

IN induction motor pf is increased using capacitors.what will be the effect on motor and system when very large capacitor is accidently installed and pf goes leading.

2094

can mini-curcuit supply MIL-tested transformer !

2095

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

2776

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