what is ht breaker

8 Answers  

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when we catch any one of the phases with our both hands in air(without touching ground),our body acts as a conductor.is it correct.please clarrify it.

4 Answers  

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What is advantages of ungrounded neutral?

2 Answers  

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How to justify this statement ??? "Capacitors in series provide less capacitance but higher voltage breakdown rating for the combination"

0 Answers  

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When will you multiply and devide with derating factors to the actual value while sizing the cable?

0 Answers  

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How can we calculate the capacitance of generator?

1 Answers  

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How do you connect the capacitors on polyphase circuits?

10 Answers   L&T, Transco,

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hi all, can any one tell me a website or document on basic interview questions on plc for a fresh diploma candidate?

1 Answers  

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What are the different sign conventions used in electric circuits?

0 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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it is possible to run 130V AC and 230 V AC cables run in same tray

2 Answers  

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Why Transformer Neutral having one earth pit ( more earth electrode resistance) whereas body have many earth pit ( less earth electrode resistance)?

0 Answers   OPS,

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