please let me know , we have installed two separate motor for fire fighting system 1) 60 hp and 2) 15 hp the load is 74 AMPS and 20 AMPS then tell me the main power cable in Aluminum will be what thickness , the length is 225 mt from the main utility to fire pump house

1 Answers  

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How does CT can measure the high value DC current?

4 Answers  

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watt meter have 4 terminals what there name??? and what theses 4 terminals indicates ?? and why 2 terminals are short circuited??

1 Answers  

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Why the transformers making noise?

2 Answers   L&T,

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how to calculate no. of earthing pits and their diamensions? no. of lightning arrester rods which are required to protect a building of 35 mtr and we calculate?

5 Answers   Dharampal Premchand Limited, FlowMore, Hindustan Zinc, Ispat, Maheshwary Ispat, NDDB, Siemens,

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Can anyone explain how the vector diagram of a transformer which doesn't have name plate be found whether it is Dy11/Dy5/Yd11 and so on?

4 Answers   TATA,

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What will hapen if we run generator below 47.6hz frequency?

9 Answers   TATA,

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Why dose voltage rated at 11kva

1 Answers   TK Chemical Complex,

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difference b/w bus bar and tie line?if possible explain with eg:

2 Answers  

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how we identify AC or DC machine at the time of seeing, with out use of name plate?

4 Answers  

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how to calculate diesel consumption of diesel generator by considering load and capacity of generator?

1 Answers  

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Transformer rating=> 15/20 MVA.Why there are two raings? What should be the rating of the fuse at the secondary if the voltage level is 13.8KV/4.16KV?

1 Answers   Bhel,

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