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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

What is the difference between earth resistance and earth electrode resistance?

1 11683

how many types of dc batteries standards are present?

2 4973

which power plant has high load factor?

APTransco,

12 22661

please explain power factor in simple words.....

3 7267

what is meant by Hrc fuses.?In the distribution system different rating hrc fuses are used for tranformer(which is 3k,6k,10k,15k etc).what is k?.plz any brother tell me about k?

1 5317

why would amp draw on neutral wire be as much as amp draw on the hot leg.

2063

This is urgent!! What is a Thyristor-based 3-ways selector switch with Zero crossing control? how does it operate and where is it mostly found in a system?

2022

how to compute kvar in substation feeder to improve power factor and sending voltage

2106

define the power factor in one word

12 18703

1000 W bulb takes 4.16 Amps at 240 volt then what will be the KWH & if i am using 1000 W bulb at 180 Volt the amps will be 5.55 then what will be KWH????????????????

2 5584

How do we calculate the Out put voltage of generator, after the excitation is being given?

1899

What is the simplest formula to calculate the rotor diameter of a synchronous generator?

PEI,

2404

How do we calculate the out Put voltage of generator, after excitation being given?

2 5142

We have one Energy meter for Measuring the voltage,current,power,energy(KWH,KVARH,KVAH) & power factor.The problem is that the meter does not show whether the PF is lagging or leading.So i want to know that is there any way or calculation to find out that whether the PF sign (lagging or leading) depending upon the above mentioned parameters?

4 9170

How do you select a cable size(Cu & Al) for a particular load?

2 6463

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Un-Answered Questions { Electrical Engineering }

Which thing is maximum in RLC circuit at resonance a)power consumption b)inductive current c)capacitive voltage

1755

Differentiate between Zero and Negative sequence current

1875

Define phase cross over?

1094

why the neutral line is not giving shock to us if we touch it ?

1733

how technical is calculated in 11kv line and lt line

1997

what is ps impedance test

2081

WHaT IS THE CONCEPT OF INDUCTION LAMPS IN MODERN LIGHTINGS, and HOW IT WORKS TO EMIT LIGHT ( AS NO ELECTRODES ARE PRESENT ) ?" COULD INDUCTION LAMPS CAUSE INTERFERENCE WITH COMUNICATIONS INTO A STORE USING INDUCTION LIGHTING ? WHAT IS THE BENEFIT OF USING THE LOW FREQENCY INDUCTION LAMP , VERSUS LED , AND VERSUS FLUORESCENT, AND VERSUS ANOTHER KIND OF LIGHTING . THANK yOU MOISES GUINDI

2047

during installation time of transformer and alternator which points we have to observed?

1910

What are the uses of lead compensator?

1137

What is the meaning of floating point earthing in battery backed systems ?

1987

draw a circuit diagram connecting transformer OLTC- RTCC- VCB-Marshalling Box otherwise Explain in words

23006

battery capacity use of made?

2505

sir please tel me how calucalte kwh if home taken load 30ams how maney kwh taken per day.and 3phase motor 5hp per hars how maney load teken and how mach kwh and forward me to electrical table for calicalte kwh and kvr and kvah

3926

we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.

1883

how much value of resistance should connect to 15 kw, 6 pole 3 phase slip ring induction motor having RV-240, RA-42.

1890

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