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 we can produce negative DC voltage ? please explain it .,thank u

1 2529

what is the standard values(Megger test) of resistances between L&N,L&E and N&E for a system on IEE regulations?

2213

WHAT IS DIFFERENCE BETWEEN MANUAL CONTROL AND MAGNETIC CONTROL AND STATE ITS ADVANTAGE /DISADVANTAGE

Siemens,

2043

what are the standard values for resistances(Megger testing) between L&N, L&E and N&E (L=Live,N=Neutral, E=Earth)?

CESU,

1 3141

why current flow throgh conductor.

2 4912

what are the standard values for resistances(Megger testing) between L&N, L&E and N&E (L=Live,N=Neutral, E=Earth)?

1 9725

what is spill current?

Adani, NPCIL,

4 41013

how flow current in 220 kv line to line

NLC,

1931

Is there any problem if i connect APFC panel in generator circuit

2 6315

how to select a breaker (MCB,MCCB,ELCB) for 18.5 kw, 3 ph. 480 v, 60 hz induction motor?

4 35915

how to synchronize 4 nos. of diesel generator sets of different capacity (kva)?

Bhel,

7 25424

what will happen if we use cylindrical conductor instead of flat cu conductor in transformer

Crompton Greaves,

2 6238

can anyone show me how the 3 phase power is supplied to socket outlets?

Bhel,

1976

what is tertiary winding in transformer?What is its purpose?

Bhel,

18 105510

Why we are going for converter transformers for DC drives application instead of distribution transformer?

1951

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Un-Answered Questions { Electrical Engineering }

How does "OUT OF STEP" relay ,for Synchronous motor protection, work?

4301

exolain the star delta connection

2639

What is Icu and Ics and what is difference b/w them. please tell me how to calculate a size of a copper bar for a system or a breaker... reply on... king.arish@gmail.com would be waiting for a logical answer.

2420

How to calculate approximate load loss of a distribution transformer by knowing %ge imp of transformer?

2185

What are the parts in a inverter?

2046

What is the meaning of 40X8X2 busbar dimensions for carring load of 400 Amps

1956

How to calculate cable size by using load.?? Any formula...

1322

We are preparing another project which involves Waste heat recovery from a 1 MW GE Engine. The Engine in particular gives out flue gas at 487Deg C with a flow rate of 5650 kg/hour and this can be cooled to 180 Deg C. This gives a thermal output of ~ 594 KW that is available for input to VAM via heat exchanger / boiler. Additionally 581 KW will be available from engine jacket water (temperature profile 80/ 80 Deg C and a flow rate of 50m3/hr) Our estimation is that 300 TR of cooling is possible with a suitable VAM machine(s). Please advise what is the most suitable arrangement with maximum TR and min Capital expenditure. plz reply me as early as possible

1946

What are differences between Voltage, EMF & Potential difference ?

1922

I WANT TO INSTALL LIGHTING ARRESTOR ABOVE 20 FEET HEIGHT INDUSTRIAL BUILDING. NOW IT WAS 15 FEET HEIGHT HOW MUCH DISTANCE IT WILL COVER & HOW TO CALCULAT THE DISTANCE COVER BY THE ARRESTOR

1917

I am a possesor of c licence from 1993. I forgot to renew during the year 1998. During that time I was working at TNEB to till date. Is there any possibility to get renewed? or to apply for a new one?

1996

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

2080

specify the inbuilt protections in DG

2023

what is the use of surge suppresser in 33 KV incoming panel. where it must be installed,inseries with incoming cable surge suppresser must be at incoming of the breaker are outgoing of the breaker

5349

what ispositive, negative, zero sequence impedence?

1985

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