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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what phase and neutral.

HP,

3 5643

why used in starter in tube ligtht circuit.

College School Exams Tests, HP,

4 8021

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

CESC, HP,

11 68042

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 96402

how much UPS neutral erath leakage current.

HP,

3110

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 9943

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 10538

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 11204

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

ITC Infotech, Jindal,

19 41400

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

CPCL, Rubicon,

7 37154

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

 8 18577

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

 13 21398

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

 1596

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 3063

What is the difference between short circuit and overload currents?

IIIT,

14 58367

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Un-Answered Questions { Electrical Engineering }

Explain what is rated speed?

661

Name the component u would expect to find in a switchgear assembly?

1572

What is the method of estamating of cable, CB,MCB ?

1660

please I wont know how to calculate the vector group for power transformer ZNyn11 best regard.

1259

Why the symbol of register is "zig zag"

1123




why they were using TRIAC instead relay in some controllers and what is the advantages.

1503

what is tri state logic gate

1602

How to calculate VA rating for CT or PT or Control Transformer?

2321

If a air condition consume 2.50 to 3.00 amp then how much it will consume in watts if it is running 10 hours out of 24 hours????

1436

Explain the different regions in frequency response?

632

What are IP protections used for electrical panels, JB, equipments installed in explosive zones like Petrochemicals, Oil & gas

1205

why are u join ntpc

1715

give me a clear defination of inductance,and how can u calculate inductance of a motor

2309

why booster transformer is used in sumpners test conducted on transformer????

3070

what is value of Jin transformer

1624

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