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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

How will polarity test of Dy5 Transformer ?

2163

how to remover corona effect and hysteresis losses from contactor

1975

WHY IN WESTERN COUNTRIES THE ELECTRIC SHOCK IS VERY SLOW AS COMPARE TO INDIA.&IF ANY ONE HAVE CORRECT KNOWLEDGE THEN SEND OTHERWISE NOT

1 4134

what would happen if u assume to insulate all the overhead lines and no insulators....??do you think it to b an advantag or a disadvantage??justify.

3 5654

How can we increase the capacity of exixting capacitor bank??????????????? PLS. Help

1 3805

how to calculate no load losses units comsumed by transformer

MRF,

2 7790

how many units consumed by a 33/440 2000 kava transformer in a day

Infosys, MRF,

3 10020

why do we prefer a 3-phase delta connected load rather than star connected?

4 7631

The neutarl to earth voltage in system is 7volts on Electricity power but it lowers to 1.3volts when load transfered to DG power.what may be the reason.

3 5784

why battery is connected in parallel ?

7 9769

what happens if dc supply is given to the transformer?

10 17525

why indian power system having 11.22,33 KV ???

Titan,

6 11016

What is the Gap Should maintain for HT cables crossing of LT Cable?

2 7417

in soft starter system for 375 KW 3 ph induction motor for multi stage vertical pump, two thyristers failed causing shorting of thyrister. the motor winding failed while starting.What is the cause and what is the effect in above case

KPCL,

1 4293

what would happen when synchronous motor will operate beyond syncronous speed?

3 5249

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Un-Answered Questions { Electrical Engineering }

Determine the BTU size of an aircon for 20 sq metre room

1834

How to reduce -234126219.6403 MVAr generation and by what?

1590

why the pf of semiconductor device is improved the electrical devices

1808

How to check 11000/1.732 to 110/1.732 Potentila transformer (PT)?

2162

what is the benefit of floating our DC source? if i have two floating DC source of which 1 has a ref voltage of -21VDC and the other of -18VDC. can it be connected in parallel to share a common ref voltage? if not, how do i make both sources to be of common ref voltage? tks

1851

HOW TO CALCULATE CAPACITOR BANK OR HARMONIC FILTER CALCULATION

2250

how to select fuse rating for a 3-phase motor ???

1755

What kind of maintenance is conducted for Transformer

2217

how to get bearing & winding temperature of an induction motor?

1971

WHAT IS SUBSTATION & ACCORDING TO VOLTAGE HT,EHT SUBSTATION EXPLAIN IT

3119

BRIEFLY EXPLAIN THE STORAGE CLASSES AND THEIR TYPES IN C

2285

How much pf maintan in dg set in 6o% load,when Dg runnig Neutaal Earthing removed what happen.

1945

I'm generating a pulse of 3V with frequency 80Hz (12.5ms time period) and pulse duration 0.125ms and feeding it to a transformer since i want the pulse to get amplified around 60V. At the output amplification s happening but the pulse is changed to a spike, can you tell me what could be the reason? (an ordinary transformer 220V-12V stepdown transformer is reverse connected ie. now it is 12V-220V stepup and voltage amplification happens)

1844

What is the function of Governor in Hydro Power Station? What is the Function of Lightning Arrestor Voltage Transformer (LAVT)?

2778

What is control system?

1156

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