Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What happen when neutral point connected to core balance current transformer? (Neutral point of an alternator of a 180KVA DG. Neutral point connected to CBCT means enter to the CBCT)

Great Eastern Energy Corporation Ltd,

1832

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

1890

IF we have 500kva transformer & know the current on HT & LT side, how can we consider for its breaker?

5 6804

How can we decide cable size from HT panel to Transformer? Please give you reply with some examples.

1764

700KW 6.6KV slip ring induction motor to use VFD to control the speed

2768

1hp= how much rpm

1567

how much earth resistance consider to commissioning the transformer?

Deccan Cements,

3 5582

in transformer the unit of power is in kva why?

Videocon,

4 5725

full form of electrical?

CEAT,

2284

how many synchronous motor are there in any power plant

L&T,

1469

Why HT 11 KV Slipring Motors are connected in star ?

1758

Why usually in all electrical equipment taking more current in Y pahse like pumps,compressor,or any other applications

1 3002

What is difference b/w fuse and breaker?

Jindal,

3 5273

what is dead tank CT AND what is live tank CT

TATA,

2 6718

what the effect will occur if we increase the airgap in induction motor

ONGC,

3 20575


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Un-Answered Questions { Electrical Engineering }

what is RNG in the DG synchronizing by PLC?

1610


What are the various types of BUSBAR Schemes? explain each

4563


my diploma certificate in my higher education college

1193


What is the gross weight to copper ratio in slip ring induction motor of 4000 HP,6.6 kv, 372amp, 992 rpm GE motor.

1890


please give me all the Alarm .Trip ,Safety Relays & Conditions of Diesel-generators mail me on ashokbabunhce@gmail.com

1497






how does a shunt reactor maintains the bus voltage???

1570


how to calculate the earth fault current

1949


how to changeover ups in this power failur time?

1517


what is breathing?

1320


When and where resistance earthing is used ? How to calculate the time constant for earth fault

1325


PLZ EXPLIN ABOUT CLASS PS CLASS CT .WHY THEY R DESINED AND FOR WHAT PURPOSE?WHY OTHER CT CANT BE USED AS PS CLASS CT? EXPLAIN IN SIMPLE LAUNGAGE IF POSSIBLE PLZ GIVE CIRCIT DIAGRAM?EMAIL-RAJ_SINGH_0376@SIFY.COM

1702


What are the different methodes for calculating the short circuit Current?

1491


Can any answer me ,What will be the range of C.T coil for L&T energy meter EM301 used for 180 kva DG set

1763


why we have and use 3 phase not 2 or 4 or other in power system?

1672


briefly explain principle of resistance welding

1399