Electrical Engineering Interview Questions
Questions Answers Views Company eMail

in 31.5 mva power transformer how to set of wti and oti?

HMEL,

1 3287

I have AC automatic voltage regulator 15KVA What output currant?

Siemens,

3 4453

I want formula to calculate current loss with distance in km.I searched many sites but didn't right answer.Plz reply me

SECL,

1539

Some times to change of DOR of a motor, interchange of R & B is not effected and RYB take same current, but interchange of R&Y is effected ie change the DOR. My doubt is what is the problem in motor and how it is happen.

1514

how much the voltage & resistance should be ,between earth & neutral points.?& why?

6 6216

what is mean by kneepoint voltage? when it will happen? ( my doubt is, if CT secondary is open means ct get saturation or blas? what are factors are required for calculations? plz give currect anws:

1492

i have one ground earth for my shop but now he showing 11v how ever my machine engineer said that he require less than 3v how can we reduce it, i have put 8 bucket salty water in it

1 2619

In dc ckt. 24v or 110v, which one is more efficient and why?

1718

100 MVA 3-phase alternator with earthed neutral has a reactance of 5 ohms per phase. what will be the fault MVA of generator.

1809

advantage of motor design on higher power factor . normally motors are designed for .8 power factor. what is advantage of designing at .88 power factor

1365

which VFD is better ( LT or HT)

1577

I have a generator of 300kw.400V,50hz . what is means can i assume the load Red Phase with Neutral 300kw.Yellow phase with neutral 300kw and Blue with neutral also 300Kw. or - red with neutral 100kw same as yelloe and blue phase also giving 100kw with neutral respectively

3 4372

How to differentiate 220 Kv & 132 Kv line transmission tower if there are no specifications given on towers?

Karam, Power Grid,

3 10808

if i conncet ct with ct ratio of 600/5 to an energy meter having ct ratio of 100/5, the reading show by the meter will correct, if wrong is there any method to calculate correct value with shown value, if yes please state it.....

2 5556

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

1719


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Un-Answered Questions { Electrical Engineering }

Write down the design procedure of commutaj.

1703


how many electricity poles are there and what are the names and their sizes.

1411


Why colled 440V to 3-phase supply.

1656


HOW TO CALCULATE ELECTRICAL, MECHANICAL,& OVERALL EFICIENCY OF GAS ENGINE POWER PLANT

1504


PLEASE ANYBODY HAVE ELECTRICAL CIRCUIT DIAGRAM FOR CHMER PULSE CD 60M SPARKING MACHINE.PLEASE MAIL ME SUPRIYAAYYAPPAN@YAHOO.CO.IN.

2314






Explain the construction of the conservator, operation and purpose, and draw the diagram of the conservator.

2001


how to calculate transformer load?

1922


What is the estimated total hydropower potential of india?

606


i want design of D.C.MOTOR 1HP 960RPM AND 2HP 960RPM ITS URRGENT

1534


is that any software calculator to calculate the size of cable

1843


our factory is going under construction mean time transformer 1000 kva 2 nos &load break swithch 12 kv & 4 nos 750 kva 2 nos & 380 kva 2 nos generator to be errcted.how to arrange earth pits &how to earth connect & neutral pit how to calculate in earth bit size.

1640


What are motor generator sets and explain the different ways the motor generator set can be used ?

686


where are the circulat the diesel in DG parts name with pictue

1604


anyone please send transformer parameter design formulas & details of tap changer ? plz i have interview this week its more helpful for me ?

1408


I am going to appear RRB Sr. Section Engineer Exam, Electrical. Can you send me previous year questions of RRB Electrical engineer. specially Section Engineer questions. my email id is likerahulworld@gmail.com

1335