Electrical Engineering Interview Questions
Questions Answers Views Company eMail

why do motors burn out? I understand why adding parallel loads to a power source means more current moves through the circuit, and can destroy circuit elements by overheating. What about when you have a vaccuum cleaner intake flush against a floor, a room fan sitting directly against a wall, or a power drill trying to drill through something too hard?

643

WHAT IS THE DIFFERENCE BETWEEN NUTREL AND EARTHING

Areva,

10 6719

For 300 MW plant what is the distribution voltage

6 4985




in alternator what is use of AVR ? how AVR is operating either AC or DC?

1 3101

in alternator how we can give power to rotor ? its power is AC or DC ?

5 2506

how can u determine size of the conductor by knowing the voltage level

2 2955

why HV test for cables?.why 0.7times?

Bosch, Prince Food Products,

1 1058

What will be the output of t/f supplied with DC sourse?

2 1886




what is IP55,IP65

2 6297

what do u mean by starting torque? how it should be for a good motor? what is the relation between starting torque and power factor? What is the relation between efficiency and starting torque?

2 1879

please explain me about traction application?

2 3089

define differential current and restraining current in relays. how to calculate it by mathematically? post the formulaes.

Siemens, VPEC,

4 24571

why the rating of a transformer in kva not in kw.

9 4374

why cu losses called cu losses.

6 3757

What is the value of nuetral current in star connected load when DC is supplied to it???

1 1679


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Un-Answered Questions { Electrical Engineering }

How to calculate no of EARTH PIT? Describe the formula as per IS standard?

703


why does the magnetic balance tests at transformer?

532


How can we convert 11 kv to 440 volt without using transformer ?

130


Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?

586


WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING

478






comparision between ACB and VCB

925


Control wiring of a dol starter for forward and backward

100


whati s the sludge current in ups

798


how to do the ductor test?

5193


explain all the classes with example

578


Will an earth leakage trip be activated if the component or wiring is faulty on low voltage equipment.Example An electrical Cat Scarer placed in the garden and water gets into the wiring.

585


what is the use of static frequency converter and static excitation equipment? and where it is employed? for what?

2082


Motor,transformers,capacitor tubelight etc....

296


some basic standard questions on transformer.

363


How isolater function when installed inelectrical 440V wiring

718