Electrical Engineering Interview Questions

Can we use both Electrical & mechanical interlock between tow breakers? if yes how, please explain

294

Can Anyone suggest the Standards (IEC or IS) for selecting copper current density?

276

our plant maximum demand has 500 kva.need to suggest me to maintained pf 0.98.how much capacitor bank will be connect to the supply line.

507

How to calculate or formula to calculate rhe power in 2 phase system ??

329

The knee point of a current transformer is normally unique and known.So why in the nameplate of a CT they put the minimum value like this Vk> 400v.

288

What is the function of the generator exciter?

284

357

Railway Basic electrical engg technical question with answer

457

What is the minimum distance to be maintained in between HT panel and LT panel and Instrument panel as per IEC and NEC standards?

345

Can we use 230VAC, 63A MCB for 120VAC, 63A supplied heaters load?

315

Application of statically induced emf

1780

Why we make earth connection with Transformer Body and What will be the minimum size of copper wire as per code with respect to KVA rating of Transformer?

367

What is formula of capacitor for 1-phase power connection.how to improve PF. Suppose I want to connect capacitor in refrigerator to reduce power consumptions.

334

What are the no-load losses for the 11000/415V transformer with the following rated capacity? 1.1500 kVA 2. 2000 kVA 3. 2500 kVA 4. 3000 kVA

340

when ID fan will immediately stop through VFD what exactly cause and problem the ID fan

297

Un-Answered Questions { Electrical Engineering }

when it is possible kvrah lead & fundamental kwh be equal in electonic trivector meters (3 ph)

829

If a 3 phase induction motor is in off condition in the conveyor and rotor of the motor keeps moving with the conveyor than the resistance of windings of motor varies. why is it so ??

869

how to calculate

483

Is a d.c.compound motor is use as a booster? how?

975

what does vector group Dyn11 tell us? also tell me how will u differentiate between phase lead and phase lag thru this vector group

981

how to setting voltage RTCC panel

419

why in a swquence network representation, the negetive sequence generated voltage is taken as zero?

788

Installation resistance for whole installation of 16 kva & 25 KVA DTRA a) Between each conductor b) between conductor to earth c) installation resistance for each apparatus, each conductor to earth d) earth resistance for the system of earthing

785

how much leakage current is allowed in MC61A L&T make relay?

2416

How to reduce the static electricity producing in solvent room? By P.D.Patil BioCon

955

can any one suggest paper presentation topies for electrical engg?

881

what are the specifications we must look at to select a relay for any capacity motor?

961

Practical condition in 400KV Sub station:- Breaker(open) , isolator(open), Earthing (close) at both end e.g A & B. Now Open A Stn Earthing than Open B stn Earthing (Which have a 50MVA reactor) , AND suddenly show R,Y,B phase 704KV,573KV,118KV respectively. Que is without closing of breaker how it is possible.???? My Whats app No:07621840498 for Further Discussion. Pls experts suggest.

951

witch pump used in wtp

967

am commissioning the trafo without connecting the neutral therefore unbalance will occur what is the alternative solution for this?

733