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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why voltage drop will occurs in 3 phase line?

ABB, Servo,

12 18739

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 4535

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

1 5832

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 38355

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

ABB, Wireman,

4 27501

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

BRG, Reliance,

6 23464

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

HCC, L&T,

6 16608

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

3 4587

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

ABB,

9 9571

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

14 52989

WHAT HAPPEN WHEN CT SECONDARY OPEN DURING LOAD

Neco,

16 24777

HOW VFD USED IN ENERGY SAVING

ITC Infotech,

8 24175

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 5751

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

5 12462

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

Epitome,

7 10958


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Un-Answered Questions { Electrical Engineering }

How do we calculate the maximum amount of current in a 300 SQ.MM cable ?

1184


what is the affect of earth's magnetic field on the frequency used in aircraft???

1162


In a synchronous motor. if start is running at high speed.  What will be the starting torque : Higher Lower Zero

854


what will be the min and max voltage flow from neutral to earth?

516


What is electrical earthing?

247






1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to confirm its base capacity?

1119


is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

3183


How to megger test 11 kV cable and the acceptance IR value

1991


What is the difference between DOL starter and star delta starter

192


How to select, design,size & calculate for 11 KV/33KV/66KV/132KV/220 KV/440 KV circuit breaker for HT side of transformer protection/HT distribution protection?

1789


how braking & making capacity of circuit breaker is calculated?

1178


Parts of machine and their discription in details with suitable photo

1232


DESCRIBE THE CONSTRUCTION ANDOPERATION OF BELT CONVEYORS AND SCR CONVEYORS , DRAW NEAT SKETCHES

1156


Why the symbol of register is "zig zag"

628


What is effect on in zone and out zone fault if CT chosen for phase side is Vk/2<5mA and Neutral side is Vk/2<15mA on REF protection of Transformer

1507