Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how the harmonics are generated in transforemer?

IFFCO,

5 6408

What are the voltage values for LT,HT,EHT and other voltages??

MNC, INEL,

22 70192

Where there is voltage,there must be current.Is this right or wrong??

10 4792




what is the function and use of oil filled cables specify its advantages and disadvantages

Alstom,

7 18222

what type of cables exsisting in the world and how many types

Alstom,

9 6673

what is the difference between LATCH and FLIP FLOP

Wipro,

4 3721

what is resistor

9 4453

what is ground fault current? is there any current flow takes place through ground? is it possible? if it's possible whether it affect human beings on earth near the fault or not?

2 3572




WHAT HAPPEN IF GENERATOR TURBINE IF TRIP?

CEERI,

7 24439

EARTH AND NEUTRAL ARE JOINTED OR NOT?

7 6543

In neutral the current will flow or not?

17 26382

why series motor cannot be started on no-load?

6 18349

AT THE TIME OF INSTALLING THE POWER PLANT POWER IS TAKEN FROM NEARBY GRID AND GIVING THE SUPPLY TO THE GENERATOR WHICH ACTS AS MOTOR. WHAT IS THE NEED OF RUNNING THE GENERATOR AS MOTOR?

6 3650

why ELCB can't work if N input of ELCB do not connect to ground?

5 20077

Why in a three pin plug the earth pin is thicker and longer than the other pins?

NTPC, LG,

17 39100


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Un-Answered Questions { Electrical Engineering }

what do you mean by plant earthing system.

724


i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400

759


We have received supplies of the ordered material. payments against the supplies also released. Where ST paid 4% against form C. Meanwhile it has been observed that 25% of material supplied was defective. Please suggest whether the issuance of C form from our side would be stopped till settlement of liabilities.

668


Is any AC drive(VFD) had a feature of DC injection braking? if available please mention the detail. i.e drive can supply braking torque when the motor in idle state.

791


WHAT IS counter flux IN CT?

631






what is mean by dry frequency

1045


how are reversing the direction of dc motor

411


In Designing the rating & accessories of a MCCB how to choose the type of releases..means what is the basis for selecting, thermal magnetic, electromagnetic & microprocessr based releases

822


what is JE exam?

841


How to calculate VA rating for CT or PT or Control Transformer?

1461


Why current shoots up in the secondary on the knee point voltage during saturation test of CT? How core saturation effects the secondary current (while the primary side is open)? What the logic behind this?

774


What is tan delta & PPM in transformer? and whats its IS value?

764


how can you calculate fault level ?

1126


WHY IN AC DRIVES,INPUT PHASE CURRENT SHOW UNBALANCE?

916


full form of flry b

1928