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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

can induction motor becomes as a generator. if yes how it is possible. if there is a squirrel cage rotor.

6 12311

I am interested to know what does 15 KVA DG set actually means? If I dont know the DG rating, is it possible to identify KW by simply knowing the diesel consumption?

2172

how system fault level is calculated?

HCL,

1 6472

how braking & making capacity of circuit breaker is calculated?

2008

How the soft starter control the starting current in three phase squirrel cage AC Motor?

1 3518

What makes the difference between 50Hz supply and 60Hz supply which one is economical? What is the use of using increased frequency?

ABB,

5 10831

could anyone suggest project title

Engineering,

1 4253

What voltage is used in Directional earth fault relay? and why?

L&T,

5 12056

Why does inductor is connected to dc supply? or what is the role of an inductor when connected to DC source?

TCS, TRR,

3 10370

why ac generator ratings in kva only why not kw ????????????? ?

7 13608

tell me exact relation b/n voltage and current and which one is depend other

HAL,

7 9147

without any excitation we can strt any dc or ac moter?

Bhel,

6 12662

why transformer are rated in KVA not in watt?

DMRC, L&T, TCS,

7 18077

Which motor is 3.3 or 11kV more reliable, in terms of efficeancy,maintenance, reliability.

Megatron Solutions, TCL,

2125

what is the distance maintained between the power and data cables with respect to the KVA .... plss give me the formula

1 4201

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Un-Answered Questions { Electrical Engineering }

Can you explain about Restricited earth fault protection scheme

1856

Why Water motor is not taking a load or pressure while everything is correct. (Note: Motor running properly)

1406

is there any current and voltage drop on liquid resistance starter water/soda tank ?

1992

Why use in ht motore

1693

I want to make street light with solar system ... What may I do for procedure and how much of estimation for each material ... If any one knows guide me and inform this id : aravindd7@gmail.com

1855

What is gain margin?

1090

Is it good to short Neutral and Ground in the PLC or DCS main Power supply. Pls give YES or NO with reasons...? Simarpreet

2544

What are the different types of LT Cables?

1091

what is ATS & RING MAIN UNIT in Distribution System?And its Function.

2010

how slip power recovery system work

3031

what is the Transformer Impedence?How can calculate?

2101

define as synchronous generator

2154

I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1813

How to do cable earhing? whether by grounding Armour to ground or by running extra G.I wire along with cable? which one is preferred mostly amoung them? If the second one is more preferable how many GI wires to be run along with cable (1 or 2)?

2142

Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?

4079

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