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 phase and neutral.

HP,

3 7226

why used in starter in tube ligtht circuit.

College School Exams Tests, HP,

4 9437

Why used in layer by layer charcoal and salt used in earth pits.

CESC, HP,

11 71482

1. how much normal earth resistance in earth pits(neutral and body earth) and transformer neutral and body earth & panel earth.

HP, Malladi Drugs and Pharmaceuticals, Pearl Engineering, PL,

12 100239

how much UPS neutral erath leakage current.

HP,

3678

Two 11 kv lines are feeding to common bus in a substation,I have one set of CT & PT(3ct,2pt), How can I measure both lines power using single set.

L&T,

6 11915

How do determine the Size of a Droop Current Transfomer for Paralleling of Two Generators, Say I need a Droop Current transformer for a 600 kW generator need to be parallel with a 800 kW generator, etc.

JK Cement, MPPGCL Madhya Pradesh Power Generating Company Ltd, PNG Power,

2 11656

I have installed capacitor bank at secondary transformer. cos phi is increase. but on load (far from transormer), it still poor. Can anybody explain it??

6 13101

What happen if LV supply is fed to a HT motor?

ITC Infotech, Jindal,

19 46924

What type of DC Generator is used for Arc Welding purposes?

CPCL, Rubicon,

7 39486

Wat wil happen if Transformer is operated at 100 HZ Frequency?

8 20808

What is the amount of no load current of 630 kVA tranformer voltage ratio 11kV/440V ?

13 25942

what is R Core Transformer. how it differs from normal transformers. dont search in net and post the answer.

2046

when we connect a CT in the line will there be any loses in the line due to the mutual inductance of the CT.

1 3941

What is the difference between short circuit and overload currents?

IIIT,

14 62789

Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

A ray hit a smooth regular surface at an angle of 20 from the normal. Calculate : 1. The angle btw the incident and reflection ray. 2. The angle of deviation.

1893

Meaning of ingrace protection for motor.for ex IPXY

2871

How to calculate size of HT breaker with the help of Amp (current)? Please provide answers with examples.

2292

Why generation voltage in thermal power plant is between 11kv to 33kv?

998

I am using submission of two ct in one and half scheme for 67/67N protection. Both CTs star point is grounded separately near ct box.Will two point ground give wrong tripping to 67/67N during fault or no matter.

2068

redundant connection in contactor?

2451

State kirchoff voltage law?

1098

What are the ratings of VCB, MCB, MCCB, SF6, ACB, and OCB?

1513

If you have an earth with pilecap then your resistance is really low. why and how?

1948

what is the setting of locked rotor in HT motor ? (answer expecting in percentage)

2240

why we are not giving the zone 1 trip command to the master trip relay

1707

Approach of a cooling tower is the difference between temperatures of what factors?

1095

From past few months I am getting lagging pf even though sufficient capacitors used in circuit. Where is the problem pls answer

1384

what the principle of sincroscope?how it works?when it needed?

2260

How can I calculate ISF of current transformer?

3572

For More Un-Answered { Electrical Engineering } Questions Click Here