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


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

3 4409

roles of owslaw explain?


3 4111

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

4 15453

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

4 5361

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 5459

why supervision relay is used in incoming feeders?

1 2825

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

3 4791

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


8 7530

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 7795

Will a 230VAC motor run OK at 208VAC.

7 8503

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

5 9499

what is "pu" in electrical engg.

4 17240

what is transient stability analysis means?


How ships are protected from lightning?

1 3762

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Un-Answered Questions { Electrical Engineering }



What is vacuum circuit breaker.define with cause and where be use it device?


Why does an induction generator is preffered as compared to synchronous generator in especially a wind energy power production project?


what is the difference between megger and earth resister ??


We are designer please help me calculate the size of 11kv cables from step up transformer to M.V panel, total load is 5 mega watt distance 900 feet (used aluminum type cables) please provided formula for calculate the cable with example.


What is thresh hold value of current?


how r charge carriers produced


what is positive , negative & zero equivalent system resistance


what is the difference between delta delta and star delta connection transformer? why we use delta delta transformer since it need earthing transformer for grounding?


what purpose to use excaiter in DG.?


what is the AC Plant and how can do the work with parts and picture tell us 150 Tr


I am having a 42KW 3 phase electrical heating furnace, heating element is 80/20 nichrome material, my connections is made in such a way that 2 star connection compromising 2 coils per phase so totally 12 coils, shall if i use it unbalanced star condition (instead of 2 group of 3 phase or 1 group of 3 phase, connecting 4 phases of 5 phases) what will be the consequences and is it acceptable?


What Is Sampling?


What is open loop and control loop systems?


how much LT load can bear by the 100 KW HT connection.