Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why 6.6,11,22,33,66kv? what basis they have considered?

5 4094

HOW CIRCUIT BREAKER RATING CALCULATED?WHAT ARE THE PARAMETERS CONSIDERED?

5 11991

Wat is da difference b/w neutral earthing and unearthed system?

2 3103




what is the purpose of NGR?

Assam Electricals,

25 77176

what is residual current....

1 1879

what happen "when Dyn11 is parallel operation with Dyn1"?

9 10502

Grid fault level [KA]?

971

Earth Resistivity

2 3282




on what priciple transformer works on?

5 3545

how to calculate the capacity of the AC motor

TATA,

1 3340

RATING OF LIGHTENING ARRESTER FOR 11 KV LINE IS 9 KV BUT WE KNOW THAT LIGHTENING ARRESTER IS USED FOR OVER VOLTAGE PROTECTION SO WHY NOT THE RATING OF LIGHTENING ARRESTER BE MORE THAN 11KV ???????????????//

Hakel,

5 34431

what are the type of motors

3 2885

I have cleared IOCL written exam(Electrical). My intv is on 6/9/2008.can anyone guide me & tellme abt intv questions.

IOCL,

5 4787

how dc ct works?

3 3843

what is the difference between inverter and ups & what is the earth resistance for ups , if its high why so

3 4086


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Un-Answered Questions { Electrical Engineering }

by using pump duty, how we will can calculate the motor duty(KW)? is there any standard or formula.

555


what is vtg limit of earth and neutral at transformer side?

589


what is the maintaining Cf in UPS.

673


Explain the construction of the conservator, operation and purpose, and draw the diagram of the conservator.

912


how to find 5 kilo meter long under ground 33 kv cable fault location if IR VALUE shows 0.05 M ohm @5000 volt.and cable fault locator shows some time fault distance 3 kilo meter ,3.7 kilo meter and some time 1 kilo meter? now how to find the fault location that where is leakage. note--it is tested with 5000 kv megger and insulation resistance is 0.05 M ohm. and some time 0.03 M ohm comes.

638


When we giving the 3 phase supply to ups system how to coming netural?

613


we can run 2phase as 3phase .what will be the differnce with respect to phase angle, power, current between the two modes

703


in science exhibition how lamp can blink when you clap near the lamp ? thank you

491


Why arc quenching is used in Diode ?

602


what is the pulse and audio frequency transformer? what is different between induction regulators and tap changing transformer?

599


What is the difference between rulling span and wind span of of an Over Head Transmission Line?

635


Does all the output contacts (N/O as well as N/C) of a Numerical relay operate when relay receives a binary input/inputs or contacts are designated to specific logic input/inputs and only these contacts operate?

684


what do u understand from filter factor of reactor?

583


I had applied for JE in PSEB, Can you pls send me the Question bank for related to my field

511


in parallel operation of power transformer why the distance between power transformer and capacitor bank feeder is necessary to know

456