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Electrical Engineering Interview Questions

Is AC Current Scalar or Vector Component?

11600

why neutral busbar size is SAME of the phase busbar size UPTO 200A IN LT PANELS

IBS,

2905

Can I parallel 1 MVA generator with 1kVA Generator? if V, F, Ph Seq and Ph angles are same

3610

1114

If a current -8+6sin6t is flowing three ammeter, one is a centre zero PMMC meter, one is true rms meter and one is moving iron meter. What are the reading of these three meter respectively?

1131

why is that a 4*4mm cable,is always powdered internally

3120

The 3 phase 400 hp 440 volt slip ring induction motor do not take one phase amps why ? The motor is running good condition

1021

Can anyone explain about Control and power circuits of star delta starter & DOL starter ? How it works? please!

2473

why swinburnes test cannot be performed on series machines?explain

1354

meaning of two lines in between the transformer single line diagram??

2837

Why squirrel cage motor can only use with low starting loads ?

BEC,

1064

How many types of timer ?which timer are used star delta feeder

6068

What is the working of SCM CT or purpose in genrator ?

Bhel,

5272

WHY THE COLOR OF OUTDOOR TRANSFORMER IS BLUE ONLY???

1122

why do we connect voltmeter in parallel,why not in series,and why do we connect ammeter in series why not in paprallel...

6582

Un-Answered Questions { Electrical Engineering }

Why single phase induction motors are not self starting ?

606

how to calculate the formula of cable size if motor kw is given

1229

How to Decide the Location of Earth pit for Compressor in Oil Depo? and How to measure the resistance of earth pit Pls explain me with the help of Circuit Diagram?

1393

Why is tan-delta test and capacitor measurement done on alternator?

1116

how can i find ct ratio of meter by seeing name plate of meter and how it should be used in MF calculation if it shows only-/1???

816

Actuality I have at home electrical panel with 220v 50hz, and I want to converter from there to 110v 60hz, to wiring on the half of my house. Also I like to keep another half of my house with the original 220v 50hz. What is the best and safety way to do?

859

please suggest some good universities with low cost iam in totally full confusion so please help me my profile gre 283 and ielts 5.5

729

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

880

What is meant by bus bar protection?

150

Can anybody just suggest about the scope of Electrical design with ETAP software?Just guide me?

2466

if any house we instaled a 1.5 ton ac and its phase cable of wiring is installed but netrual cable of wiring not instaed. my question is that is neutual of house(for other wiring is capable for ac load or a sepeart neutrual wiring required

1518

what is the transformer rush current?

1044

What is the formula to calculate distribution transformer De-rating on iron losses basis

929

is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

3023

what is the calculation method to design core and winding of a 200kva 3phase distribution transformer?

1535