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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How over load relay works.

1 2340

What is spike & surge.

2 3081

what is AH of battery

NSIC,

6 22450

what is diffrent of RCCB & MCCB

6 10440

Why is shaft current insulation required on large motors & when should it be checked i.e. before or after assembly?

Aramco,

2 2966

How stabilizer works

1 2425

WHY STABILIZER SHOULD USED

2 2645

Tell me harmfull effects of over voltage,under voltage,spike,surge,transient & noise.

1 3778

Which type of material used for fuse wire & solder wire.

13 54721

How would u describe the function of a generator & motor?

5 5717

what would u consider to be the basic purchase order information you would need to proceed with a cable inspection assignment?

1045

Define magnetic centre in a motor?

1 12027

For which purpose the temp. rise test of transformer is conducted?

2 4152

regarding safety what would u consider the most important rules to observe when inspecting electrical equipment?

Reliance, Southco Utility,

1095

Name the component u would expect to find in a switchgear assembly?

1201


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Un-Answered Questions { Electrical Engineering }

any one guide me to reduce the power factor of diesel Generator from 0.97 Leg to 0.8 Leg.with out any change in my load.

798


Is there chopping current in resistive circuit

1126


What is the need for a controller?

249


why r we using shell transformer for low voltage

1108


If i have two 3000 kW motors and the whole facility requires a 10 MVA transformer. What would be better installing two 5 MVA transformers(one for 1 motor ) or just a single 10 MVA transformer for both of them. Give reasons for your answer.

3585






standard earthing rating for power line..

1299


what is KA rating and how can we choose switchgears on applications

515


How Calculet The UPS AH In Load

662


The 3 phase Delta connection RB=440V, BY=350V,.......* is Line to Line voltage RY= ? And Formula....?

609


How to design the NGR Resistance

1197


What is the effect of positive feedback on stability of the system?

246


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...

1356


state the disadvantages of carbon filament???

2000


how is positive, negative, zero sequence is happen.. how is effect on 3 phase system

865


temp of cast resin 1500kva tx formerwent up to 138.c but came down very fast to about 100.c within 20 mins when load was reduced from 70% to 60%

1120