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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

why voltage drop will occurs in 3 phase line?

ABB, Servo,

12 26703

As all us know that the capacitor panel is connected to improve the power factor when it is PF is low. whether we can connect the capacitor panel on D.G. side(? If it is yes means why?

Aricent, Essar,

1 6380

How to dimensioning SDCCH, LAPD and CS7 signaling on GSM?

1 7289

HOW TO CALCULATE THE CAPACITOR RANGE FOR LOAD FOR PF IMPROVEMENT? EXPLE:FOR 65 HP LOAD HOW TO CALCULATE CAPACITOR RANGE?

Al-Malik, All Star Electric, GEC, Reliance, Universal Industries,

12 46160

what is full form of lv and mv? 2.while we connect capacitor to generator what will cause for it?

ABB, Wireman,

4 32053

hw to calculate flc of motor ? data are:3-phase,50Hz,30kw

BRG, Reliance,

6 27689

how to find motor contactor rating and bimetalic relay rating? of 30kw motor which will operate on star-delta starter?

HCC, L&T,

6 21611

wht factor are considered to design ACB( air Circuit reaker) 415V

3 6755

hw to find transformer is in normal position? whether its in charged condition or not? except humming sound?

ABB,

9 14254

How can we calculate the fault level of the distribution system knowing the percentage impedance of transformer & subsequent equipments.

14 60005

WHAT HAPPEN WHEN CT SECONDARY OPEN DURING LOAD

Neco,

16 32411

HOW VFD USED IN ENERGY SAVING

ITC Infotech,

8 28432

whether the generating voltage can be made to be transmitted by means of signals to the recieved end or at the consumers end?

TCS,

6 9442

How do we check transformer losses and what are the ways to minimise it.

5 15456

if earthing is used in place of neutral how the circuit completd.

Epitome,

7 14965

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Un-Answered Questions { Electrical Engineering }

Differenciate between circuit wiring and sub main wiring with illustrations

2249

what is the safety points of vaccum circuit breaker.

2089

Can we use shunt trip coil instead of trip coil with protection relay for protection?

1741

what is the safty of poly phase tranformer?

2129

what is servo motor and how to work it.

1920

Give some example of fault limiting devices?

1360

What is the lifetime of a Thyristor? Is there a recommended lifetime for thyristors after which they should be replaced?

2710

what is cathodic protection and why it use in industries?

2289

What is Negative Potential Bias

2300

What is K-rated transformer? What is the use of it? What can be the size(pls provide calculation if possible) of K- factor transformer for 550kW,690V motor operating with drive (VFD)?

2278

why magnet has north and south poles only why not east and west and why we are considering as north and south poles? why cant we consider as east and west?

2039

please explain to me how to calculate current,voltage,resistance with formula??

1435

Why we use mho Relay in long transmission line?

1453

what is effect of leading power facter on the system and billing

2340

what are the Alarm, Trip & Safety equipment (Issues) present in Power Transformers pls Mail it to ashokbabunhce@gmail.com

1915

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