Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what phase and neutral.

HP,

3 3719

why used in starter in tube ligtht circuit.

HP, College School Exams Tests,

4 5544

Why used in layer by layer charcoal and salt used in earth pits.

CESC, HP,

10 55019




1. how much normal earth resistance in earth pits(neutral and body earth) and transformer neutral and body earth & panel earth.

HP, Malladi Drugs and Pharmaceuticals, Pearl Engineering, PL,

12 83557

how much UPS neutral erath leakage current.

HP,

2226

Two 11 kv lines are feeding to common bus in a substation,I have one set of CT & PT(3ct,2pt), How can I measure both lines power using single set.

L&T,

6 7015

How do determine the Size of a Droop Current Transfomer for Paralleling of Two Generators, Say I need a Droop Current transformer for a 600 kW generator need to be parallel with a 800 kW generator, etc.

PNG Power, JK Cement, MPPGCL Madhya Pradesh Power Generating Company Ltd,

2 7406

I have installed capacitor bank at secondary transformer. cos phi is increase. but on load (far from transormer), it still poor. Can anybody explain it??

6 8243




What happen if LV supply is fed to a HT motor?

Jindal, ITC Infotech,

19 27721

What type of DC Generator is used for Arc Welding purposes?

Rubicon, CPCL,

7 26988

Wat wil happen if Transformer is operated at 100 HZ Frequency?

8 13656

What is the amount of no load current of 630 kVA tranformer voltage ratio 11kV/440V ?

13 14303

what is R Core Transformer. how it differs from normal transformers. dont search in net and post the answer.

815

when we connect a CT in the line will there be any loses in the line due to the mutual inductance of the CT.

1 1830

What is the difference between short circuit and overload currents?

IIIT,

14 49311


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Un-Answered Questions { Electrical Engineering }

what is motor capacity of 80TR chiller? and also say what is the formula related temperature, motor capacity, TR?

932


could anybody able 2 send me jindal steels previous papers fr electrical steam....pls send 2 my id if possible....sirisha.shaik@gmail.com

801


what will be d.g. capacity to cater together for 14hp A.C. load & 3kw lighting load

769


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

571


what is the affect of earth's magnetic field on the frequency used in aircraft???

790






what is the preventive maintence for ht panels and busbars and vcb abd acb's.

1068


what mean by analog ,digital,numerical meters and relays? say the example?

752


why we are using Load factor?

236


what is the control circuit for operating the clean room air shower

882


If we have to feed a housing complex having load 8MVA, than what would be the better option, either we first step down 33kv supply into 11kv & than 430v or we proposed no of 33/.44 kv transformer, also which option is economical?

919


what is the diff. between x'mer , isolation x'mer & ultra-isolation x'mer ?????????????

739


dc supply given to dc generator winding.how is possible? my knowledge is saying the winding will burn. please reply.

159


what happen if the load connected to the induction motor is taken away? the same question for synchoronous generator in synch i think that the the exitation voltage will appear on the terminal only if so plz answer me

759


What happened if C.T mount at any cable or Bus bar in wrong direction . C.T going on proper work or not . C,T direction is essential thing to properly work.

380


How to calculate the sag of OPGW during stringing???

1253