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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Why grables are put in substation?

1 4178

Explain the advantages of the wheatstone bridge method of measuring resistance?

7 54823

In what way does the variable ratio-arm improve the usefulness of the wheatstone bridge?

1 5896

Explain why inductance of the iron cored coil changes with current?

2 6602

Derive the inductance of a coil in terms of its physical factors.

1 4609

Let me know that how i calculate the alternator sub tranciant reactance and tranciant reactance.

2640

assume we are put both df/dt and vector surge relay in same bus the df/dt relay setting is +5 hz an -5HZ. we want operat the vector surge relay before the df/dt how i calculate the setting of the vector surge relay.

1 6678

1.what is the contact resistace of CB ? 2.radioactivity should be mesured with---------?

Power Grid,

3 6982

Why is making current of CB always greater than CB breaking burrent?.

JP Group,

6 26989

what r PID controllers?why they r used?what is there purpose?plz Explain in detail

2073

what is mean by PIR in circuitbreaker and give me detail of that?

3524

what is STUB protection in tranmission system and switch yard area?

KSEB, Power Grid,

9 74996

how does the power is travelled in conductor

2 4735

Is there any specialised book to refer about fault level calculation both in MV and LV side??

2070

electrical machines

3 17399

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Un-Answered Questions { Electrical Engineering }

How the circuit breaker is selected for Induction motor of 100 kW, 415 volt, 0.85 power factor, 0.95 efficiency ?

1609

What is Antipumping Function & If we have C.T how we find the Ratio ?

2028

What happens to voltage when current through the inductor is constant?

1129

can we choose current transformer secondary, to calculate residual flux in a power transformer, so as its saturation is close to the saturation level of power transformer?

1503

what is difference between cpp electrical system and refinery electrical system

2300

Explain Energy and Power signals?

1769

explain me the relation between torque, frequency,speed,voltage and current in the 3 phase induction motor?

2258

what is inter connected dc generator?

2838

what is a vector protection in transformer

2028

Difference between drift current and diffusion current?

1874

What do you mean by cogeneration? What its working principle?

3207

The 3 phase Delta connection RB=440V, BY=350V,.......* is Line to Line voltage RY= ? And Formula....?

1716

How does a transformer contribute towards the widespread popularity of ac system over dc?

1104

What does the term power factor shows?

1123

how calculated Transformer losses.

2038

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