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 effect of PF on alternator sizing?

Siemens,

2 6232

features of hbc fuses

2421

how can i reduce sparking without stepdowning the voltage

2527

why transformer is rated in KVA ?

5 9755

Necessity of transformer earthing

1 6911

1. Synchronization is not required A. Thermal B.Hydel C.Wind D.Nuclear

APGenco, Birla Power,

2 4654

2. What are the parameters of EHT sub-station?

APGenco,

2359

2. What are the parameters of EHT sub-station?

APGenco, Blue Star, Enercon,

1 3446

what is meant by substation?

5 11383

how do we calculate length of starting time and repeated starting of a direct online starter?

1978

how to calculate the input current in singel phase and 3phase supply to 5kva ups

Gravity India,

1 7409

What is use of 3phase instead of single phase?

DCM, L&T,

12 17003

How to calculate the input cable rating for 10kva ups (3phase input and single phase output and also 3phase output, battery rating 65Ah)provide the formula also.thnx

Bhel,

2218

what is the difference between a frequecy converter and an electric inverter?

2 4820

what is the main different between distribution transformer and power transformer ?

Sail,

7 10494

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Un-Answered Questions { Electrical Engineering }

We have a distribution transformer of 750KVA/11kv/440v and an AVR (Servo Stabilizer) of 750KVA on the LT side of distribution transformer. Also we have an ACB of 1200A on the output of distribution transformer (that is on the input of AVR). We want to have an MCCB on the output of AVR. What should be the rating?

2103

How to design the NGR Resistance

2075

Differentiate between magnetic field and magnetic flux?

1131

Where I can get the sample question for post of Junior engineer electrical-II For RRB Bhubaneswar.

2176

What is negative sequence over voltage element?

1973

Why armature rheostat is kept in maximum position?

1104

HOW TO CALCULATE EARTHING SIZING?

2162

difference between Ac and Dc mcb ????

1626

why normally Generator rating are between 11Kv to 22Kv?

4665

what is servo motor and how to work it.

1920

What are the function of different components of servo motor?

2046

Is single load(eg: three phase motor) having all the components like positive,negative,zero sequence components during fault condition?

1819

Define what is difference between fuse and breaker?

1175

how works inductive &capacitive sensors?

1966

Explain dc generator with its types?

1122

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