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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how to design coil turns ?

L&T,

1984

how to calculate magnetic force genrated by a coil ?

L&T,

2202

what is method of dc current measurement

5 9795

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

Reliance,

3 5918

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

Essar,

2130

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

NTPC,

1 5729

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

13 33808

WHAT IS DC COMPONENT IN CIRCUIT BREAKER?

10 24818

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 131323

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 4998

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

DRDO, TCE,

5 17986

what is meant by a slip?

10 14868

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

ABB, KVPY,

1 7617

What differance between Circuit brekar and Isolater?

TATA,

14 23422

WHY HUMMING SOUND OCCURED IN HT TRANSMMISSION LINES?

6 11924


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

how invertor convert the dc into ac give brif detail

2155


how was your last weekend.

1788


how does WTI work ?

1985


What is difference between YNyn0 and YNyn ??

2559


Types of test in Switchgears, MCC, NGR and DB's how it should be procced. Can anyone give me the details here or email me to pasuvaraj.k@gmail.com

2110


why single phase to grd test in HV cable?why not 2 phase at a time?

2288


we have one oven for 12 zone we are installed ir lamp in oven we control load from thyrister and 0 to 5vdc so our zone no 8 getting bright in fraction of second so what we do.. Please answer

1737


what is negative and zero impedance in 3 phase induction motor ??

2179


In what condition the HT fuse breakes?

2023


if in 3-phase system voltage=440V,frequency=60Hz, current=400A. then if it is single phase then current=? and if it is single phasing then current=?

2558


How to select a transformer group to connect a 0,433 KV generation with 33 KV grid in bi directional flow of current

1556


What will happened if the neutral of the (star connected secondry) Xformer disconnected? (if its Above KVA rated one)

2162


what is quality factor in series resonance circuit and calculate the factor of voltage magnification? how it happens?

1968


Difference between drift current and diffusion current?

1874


What are the protections for safe running of electric generator?

2266