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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

what is the full Form of AAC ant conductor?

5 12440

What should be the setting of an earth fault relay.

HP,

2 5553

What size cable is used for HT cable to the transformer of 630kVA, and the supply voltage is 11kV

2 7113

what is main reason for grid earthing for any industry

4 6590

What is the fundamental cause of transients in power system?

3 7069

What is Exitation voltage and Exitation current? What is the function of these in Alternator?

TC, Tisco,

2 9096

Why sometime AVR and sometime Booster coil is used in Alternator? what is the diferance between AVR & Booster coil due to which they are selected

Bajaj,

3082

What is the tube exial fan?

2176

What is expention fastener (Fan)

2000

What is reactance? what is the function in Auto transformer and why high leakage reactance?

1 7414

Is Neutral earthing necessary for single phase system or Genset? if yes or no then why?

1 4569

If 24 KVA AVR having Input voltage 200-400v, Output voltage 415+-1%, what will be the voltage if Load is 13A.

Sterling Wilson,

2067

When we getting shock, its we getting from voltage or Current.

Juniper Networks,

14 21594

can you give me some names of projects which can be used in our daily life & which is having medium cost?

1 3465

How can we calculate earth mat conductor size ..? & give the formula to determine earth conductor size?

3 14352

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Un-Answered Questions { Electrical Engineering }

how to measure the transformer resistance values(dyn11)?and howmuch the minimum value?

2096

my UPS suddenly goes off and all panel light also blow off.This happens even main electric supply is not interrupted.After some time it automatically starts functioning normally.Batteries are new.

2015

How to calculate size of HT breaker with the help of Amp (current)? Please provide answers with examples.

2294

if negative of DC supply used and positive is grounded through EGB, and if ELCB used in the system then is it sense the positive volatge and get tripped is it possible?

1798

why would the rotor rotate at sub synchronous speed against the direction of rotating flux when d rotor of 3 phase IM is connected to 3 phase balanced supply and the stator windings are shortcircuited ??

1999

can i use 4 number of circuit breaker as single phase manual change over switch? if yes then how plz also send ckt diagram at nazimzamurad@gmail.com

2078

what is the minimum voltage require to injure our body?

6798

Why is a plain induction motor unsuitable for wide speed control?

2248

how current is reverse from its normal direction during the fault?

2417

What are the site acceptance tests for power cables, DG Sets, LT panels & 30kVA UPS ?

2351

is it possible to turn on the single phase star delta on delay timer using 24 v dc ?

1997

why the earth is taken minimum in supplying? wather it the proportional factor to getting work any equipment or a power plant?

1857

what is the string efficiency

5171

R=*¶ l/a

1589

Why generation voltage in thermal power plant is between 11kv to 33kv?

999

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