Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why lightning arrestor are made by 2 stack of insulator but why cvt are fully 1 stack of insulator.

1 3438

why we are maintain phase to phase clearence

4 5247

why generation of electricity in low value voltage

3 4314

why the insulators are in cofee colour???

Visa Steel,

4 10846

why the tapping of transformer on ht side??????

CTS, OPTCL, Visa Steel,

12 38080

what is maintenance?how to explain

1385

cable selection formulas for electrical load.

Bhel,

1 7360

megger how much voltage will produce ?

4 7761

How to identify the start and end of 3phase 12 lead motor if U1, U2, etc numberings are lost or erased.

1636

what is creepage distance

2 8591

what is the working principle of energy saver control panel. please give the complete calculation & theory.

Lupin,

1764

For what purpose an AVR in generator sensing generator output voltage?and how the sensing is done by AVR?

3 7784

Is it possible to measure correct value of earth resistance & cable insulation ristance with out disconncting earth lead & both sides of cable ends? If not, any other method to measure ER & CIR with out disconneting from the system.

HAL,

1562

Is it possible to use AC supply insted of DC supply in trip coil operation? if not, why?

HAL,

5 5751

How to do cable earhing? whether by grounding Armour to ground or by running extra G.I wire along with cable? which one is preferred mostly amoung them? If the second one is more preferable how many GI wires to be run along with cable (1 or 2)?

HAL,

1510


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Un-Answered Questions { Electrical Engineering }

Which power will flow first if we switch on a motor Active or Reactive? How?

4197


How much dc volt applied in cathodic protection system?

1765


How two nos. 130 kw D.C motor get synchronise using D.C drive.

1510


What is the Load Capacity of Panther conductor (0.2) and dog conductor (0.2) 

2240


What is instrumental error?

609






During Testing of Maintenance Free Earthing, How deep should be the Spikes of Earth Test Meter should be inserted in the soil(one spike is 15 Meter & Other spike is 30 Mtrs away from the Main Earth Electrode. Because, recently, we observed that when spike is inserted 3-4 Inch in the earth- results are better, If spike is inserted 1 feet deep than results are increasing.

1375


What is icu and ics in Acb and how many time icu or ics passes from breaker?

957


all the technical question with answers pleas send your email id ramar_eee@yahoo.com

1478


WHY BLADE & JOW OF ISOLETOR IN SUBSTATION?

3700


what is the difference between gas group b and gas group c electrical equipment construction wise?

1323


What do you mean by per capita requirement of electrical energy in india

1582


Incoming line 11kv And transformer capacity is 2500kva. Consumption load is 1300A. Then fuse capacity is 11kv line.

1198


Why does the Solid state Rectifiers for 3-ph brake motors sometimes have 2 & sometimes 3 output terminals?

1509


the problem faced on star or delta winding connection??

1430


what is the correct format to create a resume for interview??

1452