Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

v/f drive basic princeple

2434

In electrical locomotive engines, the DC series motors is being used as traction motor. But in new engines like in WAP7 & WAG9 the 3-phase squiral cage induction motors has replaced them. So can someone tell me the advantages of induction motor over dc seris motor in engines points of view....???

RRB,

2486

Can Dy11 and Dy1 vector group transformers be paralleled?

1 9851

ell me capacitor bank chossen formula.load in KW

1 3626

what is Dog conductor? wasp conductor? rabbit conductor? ant conductor?

3 17725

HOW TO CALCULATE SINGLE PHASE AMPERES IN 3 PHASE TRANSFORMER? GIVE AN EXAMPLE PLZZZ

1 4294

1sq mm dc powr cable can carry how much dc currnt

1988

What is AVR in Turbo generator in Thermal power plant?

Thermax,

5 24164

Please tell me the power flow from pmg to main rotor of an alternator (Including AVR unit)?

Hindalco,

1994

In explosive and polluted environments which type of motors do we use?

NTPC,

3 7601

A 230V, 60W bulb when connected to 230v supply what current and power will consume, if same bulb is connected to 200v what purrent and power will consume?

3 8367

what is rated voltage?

1 3671

what does the word synchronous mean in 'synchronous machine'

3 5548

what are eddy currents

2 4635

if suplly 11kva its give 440volts then if suplly is given 10kva whats the volts given

3 5602

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Un-Answered Questions { Electrical Engineering }

in dc suppy frequency is zero why? if dc frequency is zero how to exist dc transients and ac transients

2055

63MVA,220KV/6.9KV Transformer LV side neutral is connected to Earth pit through NGR. Whether this earth pit required to connect with near by below grouding earth mat or it is to be kept separate?

2688

what is the function of anti pumping relays? what is KVAR? How it is generated in alternator? What is 3rd Harmonics? What is IDMT relay?

2260

What is the mmf,rgt and ngt please brief completely

1596

design of IGBT firing circuit for 11KV

2590

What is Delta Connection? What is meant by Forward Delta & Reverse Delta & How Will be the Connection in Power Transformers?

2224

please tell me, how i clear the objective test? when i studied form the one book after i solved the objective ,that time i solved that qes. but if i tried solve objective form the other book then i could not solved these que.

1627

Pls mail me utility & Dg related question with answer

1752

What is the rotor frequency of 10 Hp 1440 RPM 50HZ 415V ?

1890

sir pls tell me . our ct specifications are 120/5 ,2 core , 0.2 and 5p10 class , 30va and 30va buden. insted of 30 va i want use 15 va. can i use?

1467

WHAT ARE THE DATAS REQUIRED FOR PROTECTION AND METERING AND CONTROL AND LOGIC PREPARATION,HOW TO STUDY THE PROTECTION AND METERING?

2164

i wasted one year for the job after completed my btech what can i say about 1year time in interview

2080

can anyone give an idea about dia calculation in cold rolling mill

1595

To prove the capacity of a 10MVA transforemr with 6.5% impedance by a short circuit test how much power is needed to inject an impedance voltage if we have to arrive for its rated current?

1873

What is fault clearing time for Current Limiting Moulded Case Circuit Breaker?.

1748

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