Electrical Engineering Interview Questions
Questions Answers Views Company eMail

if we have 380 KVA DG. how to calculate Power Factor. With detailed formula

5315

why ht11kv supply needs discharging during shut down time

3151

what are the advantage of UG cables over the over head lines

DVC,

4584

What is corona? and what is the purpose of corona belt in substation ? why they connect these end of the buses ?

5819

What are the difference between CT/PT operated Meter and RRAMR Meter for HT/LT application?

ABC, ACB,

2066

why rating of generator is kva but motor is kw ?

11544

how to identify small motor and generator?

3464

what safety use in electrical panel

5594

What is class X ct? What rare its uses?

5615

1.What do you mean by inductive and capacitive parts of an electric circuit. 2.What do you mean by decrease of inductane and capacitance of a network? Please dont give me the text book answer.3. What is class X ct and its applications?

3734

list the type of vfd? wich is sutable for heating kiln?

1659

How to calculate & connection of 900KVA generator 2 sets & load(1500A)? How to choose cable size and ACB size for this load & generator? please explain me detail. Regards, Mr.Han

9462

working principle of AC Servo Motor with its construction

TATA,

8397

what is IP65 & What is its advantages

4093

how to reduce the transformer size in ups ?

4725

Un-Answered Questions { Electrical Engineering }

Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...

2587

what is the common earth

671

What are the main significances of root locus?

763

why does rotor rotets?

2121

I have finish diploma electronics and five years experience in electrical field in ht service how can i get c licensce or other electrical certificate

1211

why chock were used in old tubelights but are not newest tubelights?

1514

how to calculate the mesh earth network resistance in such substation, is there any recommended resistance values with references , thanks!

1885

what is meant by carrier aided trip protection in transmission line

3359

current transformer balance the power level on both sides. e.g in case of step up, at secondary side voltage rise but current decrease and vice versa in case of step down transformer. but how this power level remains same in case of current transformer and voltage transformer

1206

How to check the thermocouple is correctly connected to cable for K type? (i,e positive pole is connected to non magnetic conductor and negative pole is connected to magnetic conductor)

1303

WHAT IS ELECTRICAL MAINTAINTENCE ?

1609

Why we find the sensitivity for the CT's to check?

1456

What is the basis for framing the rules of block diagram reduction technique?

1027

what is consequences of neutral and earth connect?

1710

How many types of faults are there in 3 phase power system?

689