Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

what is arc flash and what are the hazards involved

Reliance,

2117

wHAT IS CAPACITANCE LATCHING? hOW TO CALCULATE CAPACITANCE LATCHING? hOW TO SOLVE THE PROBLEM IF CAPACITANCE LATCHING APPLIED?

1968

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

2124

UG cable sizes were specified in sqmm. But practically its not coming to mesure. What's the reason for that? And how they specify the size of the cable?

1893

one KVAR takes how much amps, and how to add power capacitors to electrical panels, for example if one of the MCC drawn 800amps means how much KVAR required

1 5389

WHAT IS THE TOTAL POWER GENERATION IN CHHATTISGARH?

1920

What is the difference between lubricating oil and insulating Oil?

Orchid,

4 13058

How we calculate the current carrying capacity of H.T. cabel?

Bhel,

2206

In Power cable specification what is U0/U and Um.

3740

For what purpose and why ACBs are used

4 6030

3-PHASE 15KVA dg IS EQUIVALENT TO 12 KW,hOW?

TATA,

2 7352

why can't we increase the voltage by increasing the field voltage in order to get higher voltage.so that we can eliminate step up transformer

Bhel,

4 7285

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

3757

Im designing APFCR Panel for 600 KVAR.I need to calculate the full current so that i can choose the capacity of isolator/Breaker.Kindly suggest with formula.

1 3806

what is deffrence between squirral cage and wound rotor in IM?

ME,

1928

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Un-Answered Questions { Electrical Engineering }

What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer?

1972

What is meant by reactance voltage?

1081

What is the approximate value of stacking factor?

1122

what are the differences between 'exhaust fan', 'heavy-duty exhaust fan' & 'super heavy duty exhaust fan'. what are their power ratings ?

2028

What is the effect of interchanging core(made of steel) and winding(made of copper) material in case of transformer? Give proper explanation in regard to different losses in transformer.

1845

What types of high speed CMOS circuits have you designed?

2097

what is the difference between megger and earth resister ??

1783

what is the efficiency of thyristor

1561

What is turn ratio of a transformer?

1174

Why cables and busbar both needed in LT Panels?

2143

what are the accessories need to be added while doing estimation for the following: 1.MCCB 2.MCB 3.ACB

2058

tell me about roaster switch .& what is the function in transmission & distribution?

2625

Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV

2140

please explain how to do 'pole drop test' on generator?

2871

Define early construction of human being

1877

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