Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How to calculate the load loss and no load losses of the power Transformer? i am having the following details : full load ct : in AMP HV :1676 ; LV:31.5 1800 KVA ;33KV/620 V for wind mill applications

ReasonSoft,

2 10653

working principle of UPS

Mantri,

15 76182

What is the technical reason for adopting color coding of three phase system as RYB.

ABB, ERDA,

11 17565




What is four quadrant metering system.

5 33420

What is harmonics. How does it get generated and means to arrest harmonics

Airtel,

8 12563

Difference B/W A/C & D/C Motors..?

Toyota,

10 11091

How does MCB operate without relay..?

Toyota,

10 18524

if we appling capacitor at above rated what are looses and what will be happen

Radiant, Real Estate,

4 3121




why do we need transformers?

12 31870

Why Humming noise originated in Starter motor and how it was generated ?

3 3792

i have attended the interview on 4th June,08 at Kolkata in IOCL, can anybody tell me what is its result

IOCL,

763

why transformer does not obey ohm law?

27 28214

Why high voltage lines (overhead ) are called high tension lines?

8 23667

say a transformer is designed for 33/11kv step down with ratio 0.33 for load 1 mva. if am giving 11kv as a input that same transformer what will happen to its o/p voltage. and whether it can be operated for 500kva

4 2569

hr round

834


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Un-Answered Questions { Electrical Engineering }

we are going to install a solar PV site and how can we calculate PV Solar Panel Efficiency, can anybody tell me complete method for its calculation.

776


how can we determine size of a cable by knowing the kw or current rating of a load?how can we calculate the resistance box of a slip ring motor?

512


how meger function

1575


What is a surge supressor why its is used in synchronous generators

736


11kV capacitor bank of rating 2.4KVAR, is charged with protective relays of only over current & Earth fault &.......without Over Voltage, Under Voltage & Neutral Displacement Relay. Is it advisable??

433






I completed my BE EEE degree 2006 .... which license should i apply .... ?????

368


DEAR SIR,I GOT THE CALL LETTER FROM RRB, SECUNDERABD AS A JE-II SO PLEASE PROVIDE ME SOME MODEL QUESTION AND ANSWER PAPERS AND LAST YEAR QUESTION PAPERS

813


what is the relation between size of the anteena and wavelenghth of radiated wave

839


how test transfomer(3 phase75kva) by megger

802


HI SIR, AM PREPARING FOR RRB FOR SECTION ENGINEER POST. PLZ SEND ME THE PREVIOUS QUESTION PAPERS AND HELP ME. I HAVE NO ENOUGH TIME MY EXAM DATE IS 22ND JUNE.... MY EMAIL ID IS nalla.amarnath@gmail.com

587


what is formula for calculate thermal overload in new numiricalrelay( not in bimetal relay)?

878


transformer phasor diagram under load explain it?

833


how to calculate the fault in substation

783


how to put cable sizing and cable glands size for respective cable & Cable Lug size in a DB sectors???

736


Discuss the effect of sudden loading of an induction motor

672