Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why is electricity produced and distributed in multiples of 11. 440V, 11KV, 22KV, 132KV etc

Bhel,

2 6217

what is VFD and where is use of it

5 5372

WHAT HAPPENED HT MOTOR FEED WITH LT SUPPLY

1 3800

A double circuit with dog conductor 66KV Transmission line from wind farm evacuation to feeding substation having capacity of 25MW for transmission. Can same transmission network be considered for further expansion of Power & how much in MW. If we need to expand next 10-15 MW more will there any augmentation is required in transmission network? Kindly reply asap.

1660

What is PMG and AREP excitation system in generator

3 39969

One B.O.T Unit ??

10 37331

What happened If 3phase supply connected to slip ring side of slipring induction motor ?

2 3667

how can we find thae value of capacitor for single phase motor. what is difference between starting capacitor and running capacitor.

1866

if single phase is 230 v three phase is 440 v then what about two phase?and why is it so?

Eicher,

2 2324

3 phase =440v single phase = 230v 2 phase =?

Accenture,

8 10745

what is the use of Turbocharger in a gen-set?

3 3918

why batteries are rated in ampere hour

1 3051

Is there a chance for a motor speed to become negative..?? What is the reason for such a phenomenon.? In that case does the motor works as a generator..???

1 2752

What is ESP how its work &what is corona ? con insulater&drive insulater where it is used ? Any body says that pls

Travancore Titanium Products Ltd TTPL,

3 7142

Can you any one explain different between instantaneous over current and IDMT

1 3166


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Un-Answered Questions { Electrical Engineering }

What is synchro?

631


In vapour absorption refrigeration machine fluids used are

691


On a 6 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 42 AH). What Shall be the current rating of DC MCB ?

2094


explain types of electric welding and its applications

1177


what is meant by re-rolling motor? how it differs from standard motor?

1431






what is draiv work

1417


Can we indroduce the principle of single phase induction mator to Transformer? i.e. by Producing rotating flux in the transformer.

1791


Diagram and details of polarity test for Current Transformer 11kv 400/200/100/1A

2535


I have a relay contact rated at 220v dc which is supplied with a 24vdc from the panel,for it to trip the dampers(24vdc).What if the application of the relay changes so that it should work at its rated 220vdc then will it work at 24vdc supply given or any other consideration needs to be taken .....

1624


Why we are using Isolation Power Transformer inplace of commercial power transformer? What's the difference between them?

1499


In India the supply voltage is 230 volt A.C. During the negative half cycle phase becomes neutral and neutral become phase? or what will happen during negative half cycle? how the electrons flow during positive and negative half cycle?

1467


Explain different types of d.c motors? Give their applications

623


what is solkor relay and which condition it will act?

2830


Define the three phase formula fuse.

1373


how to calculte capacitor range for single phase induction motors??pls tel

1583