Answer / arup

let inductance is L
L=NO OF TURN*FLUX LINKAGE/AMP

Transformer/insulating oil tester(BDV tester)

1 Answers  

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house wiring - series wiring or parallel wiring

4 Answers  

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what is the working of ups.

7 Answers  

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USE OF 8 WAY PAN ASSEMBLY

0 Answers   TCS,

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what is ATS?and its function or operation in power system with its layout.

1 Answers   DLF,

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why are the transmission lines operated at 220 kv nly... nt les dan dat...

3 Answers  

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What will happen if the armature resistance is in minimum position and the field resistance is in maximum position while starting the motor

0 Answers   Viva,

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is the power of a single phase induction motor(Fans) is constant under varying speeds?

4 Answers  

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what is the difference between ac and dc hipo test of cable?

2 Answers  

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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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Which oil is used in Transformer?

6 Answers  

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what is main parts of alternator.

3 Answers   HP,

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