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

Electrical Engineering Interview Questions

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all the technical question with answers pleas send your email id ramar_eee@yahoo.com

RRB,

2082

For polarity test on a 11/3.3kV 2.5MVA delta-star Unit Auxiliary transformer,415V 3-phase supply was applied at the HV. Connection between Aa was made with a 2.5mm cable. As soon as power was switched on the cable caught fire and burnt. This test was then abandoned. It is noteworthy to say that a similar cable was also used in a similar transformer for the same. The cable did not burn and test was successfully completed with good result. What is wrong? Please, help me out.

3 7842

how choose conductor &caple&wire depending upon the load

HCL,

2 6798

how choose conductor&depending upon load

Ford, HCL,

1962

how is choose &depending upon the load why?

HCL,

1 3763

What is IDMT relay how it works.

Electrotherm, Sulzer,

3 90038

advantage of cu cable over al cable

Havells,

4 11056

how current rating of l.t cable is find

GAIL,

2 7069

In the Variable Voltage Variable Frequency Drive, how the Voltage and Frequency varied ? Is it varied in the Inverter part of the Drive ? Please give us supporting document if any.

1999

wat is syncronization . wat parameter will take for syncronization.

IIT,

2 5992

in our sub station why we step down firstly 33kv\11kv then 11kv to 430v. can we direct step down 33v to 430.v.

Eaton, Siemens,

18 43509

line diagram for mcb , mccb , rccb .

1 9370

How feedback transformer works to feedback power in Slip Power Recovery System

2 7776

When semiconductor fuse does save thyristor in each cycle of conduction? Why under voltage setting keep less in SPRS and more in DC drive?

2150

FRIENDS, I am doing DEEE (part time)final year. Give me some ideas for project

HCL,

5 9870

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Un-Answered Questions { Electrical Engineering }

Why in ESP Positive earthed

3153

Work done in a free expansion process is

1204

WHAT IS DIFFERENCE BETWEEN CAPACITOR AND CAPACITANCE?

2136

How cable from Kit-Kat to main switch, from starter to motor are designed?

2166

why we take movement of rotor always in counter-clockwise direction in 3-phase induction motors?

2000

what are the dimensions for 200 kva transformer plinth (plateform),in which pcc m20 is used..

11784

What is relation between mu(nought) and epsilon(nought)?

1595

What is true sine wave or pure sine wave inverter?? Is it sine wave or step wave?? If it is step wave, waves with how much step is considered as pure sine wave? Is it possible to produce pure sinewave using power electronics?

1925

Pl. brief about break-down maintenance of machine tool.

1860

why steady state stability limit is greater than transient stability limit ? How it can be explained ?

2961

What is the distance between each insulator in 33kv transformer and how can it calculate

2236

how to select battery for 15 KVA UPS with formula

2598

Draw a SLD of HT distribution EB grid up to users Transformer?

6254

how to know the diffrential relay setting of 06mva step- down (delta-star)transformer?

2090

what shoud be strength and weakness to impress interviewer????????

2133

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