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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

what is the difference between earth, neutral and ground?

Farnek, Shyam Indus Power, Spiro Solutions,

1 3322

During the main stator winding insulation testing (phase to ground)of 11kv alternator (Lerysomer) i found 0 and resistance with multimeter and found 20 killo ohm while the power cables are connected both end (Generator & VCB). In VCB PT (Potential transformer) are connected. Please any body explain that method of insulation is correct or not? also describe of PT connections

Private,

1 2916

3.7 kw motor ,how much sq mm cabel want to bare this motor load

1 2983

What is PLL? what are it's advantages?

BREB,

1 2680

what will be the breaking capacity of MCCB of 1000kVA (6% Impedence) transformer? Voltage being 415V, Power Factor 0.8.

BPC,

2 3016

Thumb rule of cable size(rm>30 rm)X multiplying factor=ampere

Kazi Farms, SKI Carbon Black,

1611

what are balanced and unbalanced loads

GGH,

1 2723

1. What are the types of Transformer?

Valdel,

1 2487

On what basis do you decide the ONAN (Oil Natural air natural) or Dry type transformer for a project?

Semac,

1606

Which are the types of breakers used in High Tension (HT) side?

1 3069

How to calculate the no of Ceiling fan (1200mm sweep) per unit area?

2079

No load tap changing transformer working

1651

can the measured percentage error during calibration of single phase energy meter be negative?

2410

I want to merge a cable..in between two metering Cubicals which contains CT's and PT's and Energy meter..before taking merger..what are the common things required?

1658

how a generating station can monitor its multi users power factor. What type of incentive /penalty is associated with power factor management.

Sojex,

1 2260

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Un-Answered Questions { Electrical Engineering }

what are the industrail measures to over ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system?

2148

what is stper motor

2420

What are the advantages of nichols chart?

1312

What are the various kind of cables used for transmission?

1107

How to calculate Voltage regulation of 22 KV Over head Line.

1668

Dear All, I am new in construction company , my boss ask a question at time of interview , If we have 60MW generation and Single Power Transformer step-up we have. if CMR 50/60MVA , ONAN, ONAF respectively , is it sufficient or not ? for that much power to transfer,

1647

Show the schematic arrangement of diesel power station layout and give its principle of operation.

3040

Why ground terminal is used in pot meter 10k ohms

1888

please forward me the type of questions which would rise while me attending to 33KV Electrical License to my mail ID:vadrevu_raghava@yahoo.co.in

2022

How you give clearance to a spare feeder.

1697

what is a speed of rotor when we give supply to stator of 50hz and as well as rotor of 60hz of an induction motor?????

1642

What is phenomenon of electromagnetic induction and how it works?

1073

Why does the rotor rotate?

2275

Differentiate between ideal and non-ideal voltage sources?

1086

What are the transformer losses?

1174

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