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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

how to determine motor size for a fan application?

EDC,

2294

Is better to supply the voltage for static exciter from the auxiliary power source or from the SG terminals? And why?

1931

What is meant by term Back to back in HVDC transmission?

SSC,

1 4301

how we can calculate LT side current of transformer

L&T,

2 8777

which motor is used in our Indian Ceiling fan -Capacitor start and run or Capacitor start? (during repair i saw only one capacitor so it should be start only)

ABB, Bajaj Electricals, Power Grid, Ruchi Soya, Suzuki,

5 16979

what is the principle of switchgear and its function

1 3889

Please mention available current rating for MCB,RCCB,MCCB in the market or any website

ETCO,

1 8982

rating of ups??

1 3538

Is it possible to connect a dYN1 transformer in parallel with a YNd11 transformer.

4 16138

16kv transformeris stolen in my village.and department is not taking action.then what should i do.any shortcut .please help any idea

1 3618

how can we select the rating of Load break switch that is connected to the primary protection of 200 kva 11kv/415v distribution transformer?? step by step calculated answr pls...thnk.u

Maruti Suzuki,

2 6422

What is difference between VCB and SF6 breaker

4 8868

what is suitable cable for 25 HP motor ? start with VFD ac supply 50 hz

Mac,

3 6548

In HVDC LINE RECTIFIER CONTROL ON CONSTANT CURRENT AND INVERTER CONTROL CONSTANT EXITATION ANGLE CONTROL BUT HOW INVERTER CONTROL CONSTANT CURRENT?

1963

if one potential missing in energy meter , how much % slow the energy meter?

NTPC, SK,

1 5630

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Un-Answered Questions { Electrical Engineering }

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING) I O (current operating)?

2208

Hello to all, Please someone can send me HPCL ELECTRICAL Engg. Sample papers to me? Its urjent....my email address is.... raviasiapacific@gmail.com

2140

Is it acceptable of installing an earth pit in planters area where bare copper cable, earth rod and connection are susceptible to corrosion due to water?

1957

How dia computation perfomed in cold rolling mills .

3061

At what speed an electric car can run with 2 HP motor of weighing 400 kg?

1827

How energy is generated in hydroelectric power plant?

1299

How do we arrive at selecting reactive capacitance value as 30% of h.p rating of motor?

1841

for what voltage will reactive power be largest in 380 kv line : a) 375kv b)380kv c)385kv

1481

we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan

1679

Why earthing is necessary for any equipment?

1724

What is mason's gain formula?

1300

How to operate a ac chilar plant?

2484

for opening electrical shop, tips needed.

1829

how to select the double earth conductor if 21A full load?

2068

How to Design green buildings services? What is the advantage to design green building?

1811

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