Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Send the control circuit digram of a star delta stater?

L&T,

1 6233

what is distribution board and panel board

3 16979

how the ac voltage are selected like 220v,415v,750v,1000v& 1.KV,6.6KV,11KV,33KV,66KV,132KV,220KV & why these are selected like these orders

Jindal, JSW,

2 9318

Which one is correct mVA or MVA. Whether both the units are same for the transformer

Areva,

10 15812

how c-curve of mcb's actually looks alike?

1894

Hi Friend I am used multimeter to measure the voltage between R Phase(SS1) to R Phase(SS2). In SS1 is connected with UPS loads. But I am getting voltage between these 2 R Phases. Please give some idea friend

2031

How do you commission a power Transformer?

EEI,

1 9585

Why alternators are designed at 0.8 pf lag?

3 7476

In alternator generally we give DC voltage to field of alternator but field (excitor)produce Ac & converts into DC by rotating rectifier(RR ) then fed to rotor .my question is why we cannot give dc voltage directly to rotor instead of Excitor & RR ?

1 3730

What is the difference between IS:1554 (Part 1)/1988 & IS:694/1990 ? What do these two standards specify about?

2 21067

what is use of starter motor in DG ?

2 16328

which type of motor is used in automatic swing gate

Sail,

1975

how much excitation voltage required to generate 1mw power?

Saudi Oger,

2010

define excitaton voltage and excitation current?

Allied Group,

2 33785

define stator,rotor,excitor,rotating rectifier in generator?

Saudi Oger,

1 14140

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Un-Answered Questions { Electrical Engineering }

what are different types of electrical windings? i know the distributed winding ,concentrated winding etc but i want some detailed information, in what condition we will use distributed,concentrated windings what are the difference between them which is best, how induced emf changes by using different types of windings 20 hours ago - 1 week left to answer

1986

can someone explain that how the speed of the protection system affects the fault level calculation?

2050

How the capacitance og capacitor volatage transformer is decided?

1949

what are the reasons of CT circuit faulty in busbar protection scheme?

1444

What is T’Q and X’Q and X’D ? and what is saturated as well as unsaturated ?

1756

what is mind in cable

2030

what is the synchronous timer ? and it applications.

2362

what are the industrail measures to over ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system?

2108

Enlists the applications of sampled data systems?

1064

What is the angle of inclination for the oil connection from transformer conservator to Bucholz relay and why?

2185

What is expention fastener (Fan)

2004

I want to calculate how much capacitor we connect to maintain the unity power factor? Is there any formula? Pls give me the answer

1884

state the working of discharge lamp?

1970

in shunt clippers why a resistor is used in sereis with the input

2037

How to decide and select the different earthing wire size for the different types of earthing

2238

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