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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how to meas-our losses for L.T & H.T

1271

whether choke act as a voltage regulator in tubelight or not?

Bhel,

1 3313

How you will determine the volume of oil in a particular Distribution transformer.

1044

How to calculate the value of earth capacitance in a transmission line.

1330

what is the difference between contactors & relay.

2 3372

Spacing of Transformers ratings are 10kva,15kva,25kva,63kva,110kva,150kva .........so on Q) Why transformer are not manufactured having ratings in between or other than these standard ratings ?

3 3876

Define liftable weight of a transformer? Does the total weight of transformer include oil weight?

1575

ACCORDING TO IEC WHAT SHOULD BE THE MINIMUM HEIGHT OF G.I. STRUCTURE OF CT, PT, ISOLATOR, LA?

1258

what is the MF if CT ratio is 500/5 and in meter specification is 3.75 REVS/KWH? Thanks and Regards Selvendran.N

1 2255

Why relay connected R phase and B phase.?

1 2945

which part of transformer heats up the most and why? windings, core or oil .

Lafarge,

3 5597

How do you know when the battery is fully charged?

ABB, Pricol,

6 8581

If I want to connect a capacitor bank on the HT side of a 11kV/415V, 3 phase delta-star distribution transformer to supply Reactive power to it..what practical specifications of a Capacitor bank that can i've??please reply..

1568

Why is transformer a machine

Grasim,

1 1378

Why are the voltage levels in a powersystem are 11KV,33KV etc., why not 10KV,30KV?

2 3228


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Un-Answered Questions { Electrical Engineering }

can we find the inductance of a induction motor?

1151


1.why we are using metal oxide gapless block in lightning arrester,2.What is minimum and maximum rating of metal oxide blocks using in india

1114


critically criticize the application of ring main unit in power system

496


Why the power factor improvement is so important in industrial loads

952


Battery is a voltage source? give one example of current source and why?

603






Can u tell me design of switch yard

1291


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?

1089


The electrical energy required to raise the tempreture of a given amount water is 200 kwh. If the heat losses are 20%, the energy required is?

1123


What is the effect of pi controller on the system performance?

221


Explain Energy and Power signals?

869


How could a garment factory benefit from renewable energy

1955


What are PLC leader logic program method

852


how to select diiferent power transformers of same capacity on no load loss and full load loss by economical point of view.?

1137


Write the current equation in series RLC circuits.

256


How equivalent impedance is calculated in thevenin theorem?

265