Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

How to calculate the load loss and no load losses of the power Transformer? i am having the following details : full load ct : in AMP HV :1676 ; LV:31.5 1800 KVA ;33KV/620 V for wind mill applications

ReasonSoft,

2 14623

working principle of UPS

Mantri,

15 90897

What is the technical reason for adopting color coding of three phase system as RYB.

ABB, ERDA,

11 30610

What is four quadrant metering system.

5 44015

What is harmonics. How does it get generated and means to arrest harmonics

Airtel,

8 20360

Difference B/W A/C & D/C Motors..?

Toyota,

10 19576

How does MCB operate without relay..?

Toyota,

10 29875

if we appling capacitor at above rated what are looses and what will be happen

Radiant, Real Estate,

4 7209

why do we need transformers?

12 44011

Why Humming noise originated in Starter motor and how it was generated ?

3 7245

i have attended the interview on 4th June,08 at Kolkata in IOCL, can anybody tell me what is its result

IOCL,

2034

why transformer does not obey ohm law?

27 53426

Why high voltage lines (overhead ) are called high tension lines?

8 35129

say a transformer is designed for 33/11kv step down with ratio 0.33 for load 1 mva. if am giving 11kv as a input that same transformer what will happen to its o/p voltage. and whether it can be operated for 500kva

4 6347

hr round

2197

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Un-Answered Questions { Electrical Engineering }

In HI POT test what is reason for applying the AC VOLTS and DC VOLTS in different applications what is the nessesity for this ?

1997

what is the terminal voltage of dc series generator running at rated speed at no load?

7747

please send me jindal previous aptitude and technical question and answer.my email id is deep_raj@live.com

2026

i have 3500 amp load and select current transformer and perches.how i calculate .please understand

2219

What is an alternator impedance value?

2909

What is the criteria for selecting the voltage classes of an AC Induction Motor.The KW rating above/below which ht/lt selection is made may be provided in details.

1706

if there are six generators (3 gas CATT, one Jenbacher o1 MW each, and two nos Diesel 01 no 01 mw other 0.65mw EDGs ( say), 3 CAtt gas set have identical pole pitch,01mw EDG and Jenbacher gas Set have different pole pitch, how their power connection can be done to connect a common bus bar during installation. in short, how different pole pitched generators power connection can be done to connect a common busbar system through generators incomer ACBs.

1664

What is lighting kitts.

2170

A cotter joint is generally used to transmit

1312

What are the advantages of speed control using thyristor?

1174

How stabilizer works??

2162

when will be the iocl interview results ifaced the interview on september 8 th

2269

What are linear and non-linear systems?

1148

The electromagnetic torque developed is proportional to what in a D.C series motor?

1229

Sir 33kva 2 transformer load 900 amp calc 1800 amp mana jayega

1876

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