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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how to design coil turns ?

L&T,

1362

how to calculate magnetic force genrated by a coil ?

L&T,

1514

what is method of dc current measurement

5 7310

How much energy save vfd if motor run on 50 Hz (full speed)

Reliance,

3 3917

How to Decide(calculate) Bush bar size for copper and aluminiam ?

Essar,

1522

why knee point voltage should be high in Ct for differential protection

NTPC,

1 4633

what are the difference between protection class CT and Class PS CT

13 28462

WHAT IS DC COMPONENT IN CIRCUIT BREAKER?

10 20397

How to calculate HT XLPE CABLE for 11 kv / 433 v , 1500 kva oil type transformer system? plz provide step by step calculation

Engineers India, Indian Railways, Polycab, Shashwat, Sitara Energy, Sonali Bank,

15 118160

Hi friends. m 3 years drop. now d company asks in d interview d reason 4 my drop.what shud b d probable answers 4 that which may not put a negative impression.

2 3499

why we use star connection on the primary side of a transformer?

DRDO, TCE,

5 15074

what is meant by a slip?

10 11463

why transformer is conneted to dc for polarity test.it doesnt work in dc?

ABB, KVPY,

1 6118

What differance between Circuit brekar and Isolater?

TATA,

14 17801

WHY HUMMING SOUND OCCURED IN HT TRANSMMISSION LINES?

6 8873


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

what is the best method of grounding in 30 MW generator?

1293


what is the Transformer Impedence?How can calculate?

1292


The shot circuit in any winding of transformer result? Explain

639


Write the force balance equation of ideal dashpot element.

638


how technical is calculated in 11kv line and lt line

1297






Whether IP65 enclosure box blocks ventilation if driver for LED have to enclosed inside IP65 box

1408


please tell me how a surge protector work on a DC 48Volt.? please describe briefly.

1207


What are the difference between CT/PT operated Meter and RRAMR Meter for HT/LT application?

1720


what is the difference between elcb and rccb ?

1576


why the value of k is more in shell typr transformers?

1340


What should be the magnetic balance test values for a 3 phase delta/star connected single primary dual secondary winding transformer (90 MVA / 2 X 45 MVA TRANSFORMER)

1267


(1)The demand for electricity , the amount of renewable generation available, the amount of fossil fuel generation available and the cost of the fossil fuel generation are shown in table below period(hrs) demand(MW) renewable (MW) fossil- fuel(MW) cost of fossil fuel(MW) 00.00 - 01.00 2000 1800 2000 30 01.00 - 02.00 2300 2500 2000 30 02.00 - 03.00 2500 2700 2100 45 03.00 - 04.00 2900 3100 2100 50 04.00 - 05.00 2700 2600 2500 45 05.00 - 06.00 2400 2000 2700 50 06.00 - 07.00 2200 1800 2000 36 07.00 - 08.00 2100 1600 2000 36 Assuming that the renewable generation incurs zero cost, determine an optimal generation schedule(specifying the amount of renewable generation and fossil fuel generation used in each period, the cost for each period and the overall cost for 8 hours.)

1271


Why MCCB is Getting tripped sometimes when there is no load in the Midnight ?

1212


can i connect the two phases of scott connected transformer,if not why?

1361


what is the difference between single ratio, multiple core and multiple ratio, multiple core ? please explain.

1576