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 7349

why used in starter in tube ligtht circuit.

College School Exams Tests, HP,

4 9587

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

CESC, HP,

11 71821

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 100553

how much UPS neutral erath leakage current.

HP,

3730

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 12077

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 11757

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 13276

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

ITC Infotech, Jindal,

19 47350

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

CPCL, Rubicon,

7 39689

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

8 21021

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

13 26357

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

2092

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 4016

What is the difference between short circuit and overload currents?

IIIT,

14 63180

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Un-Answered Questions { Electrical Engineering }

how to select energy meter? have any calculation?

3013

How many kinds of E.L.C.B and how to work E.L.C.B

2040

Types of test in Switchgears, MCC, NGR and DB's how it should be procced. Can anyone give me the details here or email me to pasuvaraj.k@gmail.com

2110

What is domestic transformer? Draw the connection of domestic transformer.

2322

How to select the proper VSD to operate high inertial load

1736

The screw thread commonly used for transmission of motion is one of the following types of threads

1137

Explain forward resistance, static resistance and dynamic resistance of a pn junction diode.

1198

What should be the height of basement according to NBCC code?

2203

How to test Alternator stability test for REF relay

1478

What is marx circuit?

1133

In HVDC LINE RECTIFIER CONTROL ON CONSTANT CURRENT AND INVERTER CONTROL CONSTANT EXITATION ANGLE CONTROL BUT HOW INVERTER CONTROL CONSTANT CURRENT?

1963

WHAT IS MEANT BY DERATING OF THYRISTOR?

2965

Thermal withstand capability under full short circuit conditions, in terms of number of times of occurrence of short circuit and corresponding anticipated percentage reduction in transformer life.

2440

in battery charging room we find two fuses (one in positive other in negative cables ).why it is so?one fuse is ore than sufficient?

2259

Write down the brushes of a de machine.

1895

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