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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Do I need a special Transformer to put 240 VAC 3 phase into it and and get 480 VAC 3 phase out of it to run a machine? Or, do I just use an ordinary step down transformer and step up the voltage? Thanks

2 3524

what is the principle of vvvf drive motor

3 26759

We know that, in case if there is a faulty insulation,or sc, the current is bypassed to earth through the earth wire that has low resistance.Actually, what will happen to that current that flows through gnd?In that case,if we come in contact with that faulty appliance, wont that current flow through us as we form a closed path by standing in gnd?Is grounding a safety measure?

3 4165

Hai, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to yuva_polisetti@yahoo.co.in

1020

why we step down voltage level from 33kv to 11kv and 11kv to 415v.Instead we can step down voltage from 33kv to 415v directly using single transformer.

ABB, Adani, Central Electricals, Electrical, HCL,

12 60178

sir, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to eee_dharmendra@yahoo.com

1009

what do you mean by 1 ton in AC`s

Bhel, Bosch, ITC Infotech,

36 99517

how can you prove that in CE configuration a transistor has 180 degree phase shifted output

Bhel,

5 12090

hi frenz,its aswathy.i hve aplied for the hpcl test on feb,pls send the test patern & the placement papers as soon as possible. mail-id :kjaswathy@gmail.com

944

HAI SENT HPCL APTITUDE QUESTION PAPER, MY EMAIL ID IS angus_eee04@rediffmail.com,angus_eee04@yahoo.com

1273

How can we measure and monitor critical performance parameters of Diesel Generator Sets, both electrical and engine ?

Cologicx Systems,

3 8305

hi frnds.....anyone get any reply from HPCL. I HAVN'T.....B,COS written will b on FEB 17 th.

HPCL,

1 3177

what is the maximum genarating in india?

17 35750

WHAT IS THE DIFFERENCE BETWEEN RESISANTANCE AND IMPEDANCE IF IMPEDANCE IS MORE THAN RESISTANCE AT SAME VOLTAGE CAN WE HAVE RELATION DERIEVED BETWEEN THEM

4 7423

How to calculate D.C load current?

3 29885


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Un-Answered Questions { Electrical Engineering }

Why 9KV surge arrester having 7.65KV of MCOV?

670


What are the protections for safe running of electric generator?

1352


what is the significance of cabability curve of alternator

1409


Are Refrigerators & Deep Freezers the Inductive load ? How to calculate the Power Factor & hence the Output Power for them ?

3933


What happened ,If 3 phase clearance not maintained in 33KV Line,11KV LIne etc?

1448






Is there any guideline say about display of earthing value near to earth pit

242


List examples of voltage source?

242


What is the role of power pack in substation protection system?

1785


why 1.7Uo for HV cable Hi pot test?IE standard why?

1413


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

1169


explanation of mesh bus bars

1271


what is cogging and crawling

1609


various transmission tower like .,D tower ,K.C.O tower ,C.C.O tower,K.C.R tower ,C.C.R tower ,H.C.O tower in different tons.

1861


What is open loop and control loop systems?

218


How can we calculate the KVA rating of a Distribution transformer from its core details?

1179