Why does curving the pole faces in a dc machine contributes to a smoother dc output voltage from it?

0 Answers  

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difference between dol and rdol startors?

2 Answers   Vijai Electricals,

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Why not instal the NGR in 11kv/433kv trasformer?

3 Answers  

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Why frequency changes due to load variation in power system ? i.e why when load increases frequency decreases?

0 Answers   Madina Group,

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For high frequency application we use which transformer?

0 Answers  

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In 6600/√3/110/√3v voltage transformer,how much output voltage in open delta transformer,after removing 1-phase of primary side on transformer?

2 Answers  

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what is the difference betwteen overcurrent and short circuit fault?

3 Answers  

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why the rating of a transformer in kva not in kw.

9 Answers  

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for distribution line ratio of x/r 1.<0.1 2.>10 3.>1 4.<0.01

3 Answers   HAL, HPPSC,

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what is the importance of fault level in power system and how is it decided

2 Answers  

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Input power is 380 - 450 V but with 45 - 55 Hz frequency - desired output is 415 V and 50hz with 1% variation permissible. CVT / Servo dont stabilize the Frequency - what is best solution??

7 Answers   IOCL,

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Why voltge arev transformed in to 132KV/66/KV/33KV like that

5 Answers   HAL,

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