Electrical Engineering Interview Questions
Questions Answers Views Company eMail

which IS or IEC is used for earthing,breakdown voltage of transformer oil, hv/pd testing and all type of electrical testing

1355

What happens on the secondary of a 33kV/11kV when one phase of the primary fuse blows?

3 3707

roles of owslaw explain?

BSNL,

3 3183




how to calculate capacitor bank value to maintain unity power factor plz xplain with some suitable xample?

4 13601

xplain in detail d pr. of synchronous motors? why syn. generators r used for the production of electricity?

4 4623

what is the exact direction of current? as we know current travels from higher potential to lower potential,so if we take battery +ve to -ve implies current direction is from positive terminal to negative terminal.,whereas electrons flow from negative to positive as they are attracted by positive ions.current will be the plow of charge but not flow of positive ions.please clarify my doubt friends.

2 4794

why supervision relay is used in incoming feeders?

1 2388

how it can be decided what will be the rating of CT and PT to be used in LT or HT cables?

3 4133




A rotor of an induction machine is delta connected. Now is there any necessacity to short the slip rings?

TCS,

8 6150

There are a Transformer and an induction machine. Those two have the same supply. For which device the load current will be maximum? And why?

4 5976

Will a 230VAC motor run OK at 208VAC.

7 6933

Hi How can you start-up the 40w tube lite with 230v AC/DC without using any choke/Coil.

5 8160

what is "pu" in electrical engg.

4 15373

what is transient stability analysis means?

809

How ships are protected from lightning?

1 3225


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Un-Answered Questions { Electrical Engineering }

WHAT IS THE PARTIAL DISCHARGE TEST?

824


why we testing the core balance of the transformer before comissioning?

794


can u give me a brief idea about power line carrier communication ??

699


hi frenz,its aswathy.i hve aplied for the hpcl test on feb,pls send the test patern & the placement papers as soon as possible. mail-id :kjaswathy@gmail.com

588


What conditions are required for transformer to operate at low frequencies ?

712






How can I calculate the Mega watts required to run a plant having many electric motors and other electrical components.

840


why generator efficiency is more in swinburnes test?

949


in indoor type circuit breakers why only the corner breaker trips specially during cold season. What is the reason.

726


What is different type of Electrical curve and how it protects the equipment's while up-normal situation?

631


what is the transformer turn ratio formula and give some examples?

1254


Why mostly the HV side of transformer has Delta?

1792


what will be d.g. capacity to cater together for 14hp A.C. load & 3kw lighting load

804


WHTA IS LIMT OF LEAKGE CURRENT OF 11 KV 1 CORE 1000SQ.MM. XLPE CABLE.LOAD ON CABLE IS AROUND 600AMP .LENGTH 500 MTRS.

742


what is the criteria for selection of conductor used for ehv ac electrical dischrge

881


how to get bearing & winding temperature of an induction motor?

696