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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

when we decide to use soft starter drive or vfd drive in mcc to operate apump?

1981

What are the components ofan HT panel in a 11kv power station?

Reliance,

2 18833

From what on-site components does the HT panel monitoring the bus-bars in a 11kV system take inputs?

2016

how to set earth fault relay

1 4144

In single phase ac ups supply when current is measured with tong tester neutral current is found more than phase current.What is the reason?

2124

WHY R USE IN BRUSH IN THE MOTOR?

L&T,

6 9665

why PT transformer primary r the grounded?

L&T,

2 6447

why r use the wave taper in the substation ?

L&T,

2 5429

I want to know the principle of rotating flux transformer.

1 3582

why dc supply is given for excitation of ac alternator?how dc can produce flux?

5 8160

Where r use in Dc motor in power plant?

2 7891

How to work to the x'mer as a induction motor?

1 3916

how the specific fuel consumption of 320 kva deisel genarator set (explain with formulas please)?

RRB,

2 6236

Is there thumb rule to calculate how many Insulators to be used for Transmission line of different volatges

CS,

3 6452

what is the difference between isolator and circuit breaker

3 10402

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Un-Answered Questions { Electrical Engineering }

what is frequency response?

1146

What is tan delta & PPM in transformer? and whats its IS value?

2159

5- What is the task (function) of the excitation and isolation transformers in power plant? 6- What is the task (function) of LCI (A), LCI (B) and LCI (COS) in power plant? : LCI (A) and LCI(B) are load commutating inverter for generator turbine starting. , LCI (COS) is load commutating inverter change over switch

3818

How do we find the rating of a transformer, if it got burnt badly.

1556

DEAR SIR,I GOT THE CALL LETTER FROM RRB, SECUNDERABD AS A JE-II SO PLEASE PROVIDE ME SOME MODEL QUESTION AND ANSWER PAPERS AND LAST YEAR QUESTION PAPERS

2049

what are the advantages and disadvantages of speed control of 3 phase induction motor by varying frequency explain with drawing

2672

We have 750KVA DG set, we want to introduce REF relay with 1250/1A,CL PS,Current transformers.The lead distance of 2.5mm copper flexible cable from CT to relay is around 5mtrs.We would like to know the knee point votage(VK) & IM calculion for CT's

1922

Describe the colour rendering properties of i) tungsten filament lamps ii) tubular fluorescent lamp

3138

how to find out 3 phase complex power in per unit in unbalanced system?

2038

in dc series motor if field wdg is shorted then

1862

direction of tarbine& genrator

2092

What are the protection required for Transformer, motor, Line, Generator, capacitor, that all i have to refer which standard?(Like Transformer detail IS 2026)

2011

what is difference between speed mode and torque mode in motor?? explain in simple words please.

1596

how to set the time in digital timer ?

2021

what is meant by 3rd hormonics ?

2024

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