Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why the transformers are rated in KVA ? in new view

3 5394

how to calculate the capacity of CT operated LT trivector meters on a particular distribution transformer.

1 3200

which one has maximum efficiency autotransformer or transformer?? and why??

2 5530

how to test reverse power trip?

3919

What is the maximum breakdown voltage of 11KVA and 66 KVA power line and how it is calculated?

Anglo Platinum, Narnarayan Electrical,

1853

Why we use startor to the motor?

Bhel,

5 7528

how to minimize earth resistance upto 2Ω, if the resistance is 6 Ω ?

1491

Why the voltage n frequency of the incoming generator is kept slightly higher than d grid voltage n frequency while synchronization ?

4 11759

Advantages of using generator circuit breaker (GCB) scheme in a power station ?

Gridco,

4791

What is d main advantage of using double circuit 3 phase transmission ?

UHG,

1474

Which formation is better in transmission lines - horizontal or triangular and why ?

2 3331

Advantages of using bundled conductors ?

3 4305

how to find the torque of the single phase synchronous motor by doing an experiment

1550

pf of synchronius motor is unity, is it axact(=one) value. ?

1 2943

if the stetor speed (N S) increase by 20% then the rotor speed will be increased by 20% is it true. ?

4 4922


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Un-Answered Questions { Electrical Engineering }

HOW TO CALCULATE S/C,O/C,E/F OF ACB.

2180


high voltage transformer input voltage,current and amps rating..distributed transformer input voltage,current and amps rating...

1566


What do you mean by screen of power cables?

1316


Explain about 3 phase motor fault current calculation with examples?

2460


transformer phasor diagram under load explain it?

1720






Whether it is possible to measure energy at the input of rectifier transformer (12 pulse with very high odd harmonics)

1504


HOW TO WORK A VFD?SAY SIMPLE METHOD

3686


Why open circuit test of transformers is conducted at rated voltage??Why not any other voltage??

1170


what is the carona effects meaning in HT line transmmission system

1555


WHAT ARE THE DISADTAGES OF SINGLE-WIRE-EARTH-RETURN SYSTEM USED FOR RURAL ELECTRIFICATION?

1534


Can i replace Earth leakage relay to the faulty Earth Faulty Relay

1075


why EMF IS INDUCED IN A CONDUCTOR WHEN FLUX LINKING WITH IT CHANGES ACCORDING TO FARADAYS LAW.

1590


1)What is a Triode? What are its uses? 2) What is a Triac? 3) What is a Thyristor?

2100


Is there any standard guidelines/Criteria to design NGR/NGT.?

2402


Give me the calculation steps to design an electromagnet to be work in 230V 50 Hz AC Supply. Also give force that is created by that electromagnet when it gets energized.

1843