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Electrical Engineering Interview Questions
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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?

 1584

WHAT IS THE DIFFERENCE BETWEEN NUTREL AND EARTHING

Areva,

10 11328

For 300 MW plant what is the distribution voltage

 6 7998

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

 1 4707

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

 5 5524

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

 2 4729

why HV test for cables?.why 0.7times?

Bosch, Prince Food Products,

1 3241

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

 2 3663

what is IP55,IP65

 2 8104

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 3423

please explain me about traction application?

 2 4724

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

Siemens, VPEC,

4 31974

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

 9 9425

why cu losses called cu losses.

 6 7395

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

 1 3055

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Un-Answered Questions { Electrical Engineering }

What is meant by Low Resistance Cable and High Resistance Cable.

1422

How i can decide that HVDC line is best for transmission.

1429

Why 1/3 is used in symmetrical components?

1373

if we run a 3 phase machine on two phase what will happend??? given answer with solid reason please

1591

If I want to buy a new Xformer for my plant what are the main parameter will I need to check?

1430




Could you measure voltage in series?

723

WHERE NEUTRAL WIRE IS CONNECTED AT DOMESTIC TO TRANSMISSION LINE(SINGLE PHASE TO THREE PHASE)

1335

During Testing of Maintenance Free Earthing, How deep should be the Spikes of Earth Test Meter should be inserted in the soil(one spike is 15 Meter & Other spike is 30 Mtrs away from the Main Earth Electrode. Because, recently, we observed that when spike is inserted 3-4 Inch in the earth- results are better, If spike is inserted 1 feet deep than results are increasing.

1438

how to work droop ct in generating station

2127

how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test. why transformer rating in always in KVA ? what ispositive, negative, zero sequence impedence? How ElCB tripping if Neutral touch with ground Why AC & DC capacitor are use in UPS ? why motor rating in KW? how to syncronize two dg sets

1707

What are the main advantages of generalized error co-efficients?

637

In the formula : Knee point voltage = Burden X alf / class, Please inform what is alf? regards Shashidhar M.R.

3390

How to calculate Air conditioning capacity for a telecom BTS shelter?

3035

What are the significant parts of dc generator?

621

how to commissioning the genset with amf panel?

1888

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