Answer / venu

Dear sir (Anto)
dont misleed the question many yuongsters are going
through this site

Answer / sudhakar g

According to Book i studied in Tamilnadu rules for
Electrical contractors it should be 315mm of airgap in
busbar

Answer / anto

4mm

what will happen when square wave is fed into input side of 3kva transformer and what you will get on output side.

3 Answers   Blue Star,

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What is meant by regenerative braking?

5 Answers  

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Corona occurs between two transmission wires when they (a) are closely-spaced (b) are widely-spaced (c) have high potential difference (d) carry d.c. power

2 Answers   Power Grid,

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state the working principle of incondenscent tube?

0 Answers  

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why we used stone chips under the transformer area..

2 Answers   SSC,

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Why only 1ph,2ph,3ph supplies are universally used?? Why not 4ph or 5ph??

4 Answers  

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wath is this mining of bts

1 Answers   Nokia, TATA,

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Based on CPI/CGPA they shortlist the candidates & than directly start Interview so there is no Written Exam or GD Only PI.Interview held @ MNNIT , ALLAHABAD On-Campus on 6th,Aug, 2007 & the Questions asked to me by Interview Board ( 4 People) are from HR/SummerTraining/BTP/Subject-core, POWER SYSTEM & MACHINE. time duration of I/V is about 15-20 Minutes. HR- Q.1 Name,hobbies & About family background ? Q2.What u know abt NTPC ?? Q3.Why u want to choose NTPC as ur Carrier's starting i.e power sector not any other Oragnisation or sector ?? Techincal Questions- Q1.What is the reason for transformer Noise ?? Q2.Which material is used for making Transformer oil & How u measure its dielectric strength & Name the test ? Q.3 Which Machine u will prefer 2 use if flammble gases are coming out at a place & why ?? Q4.What is relation b/w Transmission Lines & Communication Lines ? Q5.What is the maximum capacity Synchronus Machine & total powerGeneration in our country ? Q.6 In india Power generation is at 50Hz while in America its 60 hz ,why so ?? Advantage or disadvantage ?? Q.7 Maximum Generation Voltage in india ? Q8. What is the Voltage regulation & why its required n how much is permissible ? & causes of voltage variation ?? Q.9 Why electric shock is feel ?? n in a Electric Train why we didnt feel that ? Q.10 Have u seen/ experience of any power plant/ industry related to the power sector ? so these are the questions which not too diffcult i think was asked to me.

6 Answers   NTPC,

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How can i learn to programme every VFD. Or is there any typical study to understand VFD programming.

1 Answers   Volkswagen,

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What will happened, if field voltage change with 220 voltage to 110 voltage for a dc shunt motor?

1 Answers  

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wat is d diffr btw shunt coil and trip coil in VCB?

0 Answers   NTPC,

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how we can do the insulation on secondary of ct explain and so that tan delta will within limit

0 Answers  

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