I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?

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why genarator genarating voltage 11 KV?

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Why AC loads wont used in DC input supply? and Why DC loads wont used in AC input supply?

3 Answers   Bhel,

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Hi Everyone ! My Name is Hakim ullah khan please i need formula of Cable Rating because i want to calculate by self without check any Table Chart... Thank you.....

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what is dc mator?types of dc motor?losses in dc motor?what is the mechanical,electrical and commercial efficiency of a dc motor?

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If i connect aload to phase taken from one transformer and neutral from another what will happen.

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if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)

1 Answers  

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what is the role of frequency in electrical system

2 Answers   Hindalco,

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11KV AND 22KV NETWORK KW CAPACITY IN RING AND RADIAL?

0 Answers   BK Gulf,

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What is Cement

11 Answers   ACC, L&T, Reliance Cement,

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we often use the word HT (high tension) line.or we say HT switch gear, whats does HT basically mean. is it different from high voltage.

2 Answers  

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i am getting to neutral earth voltage zero ,is this a perfect earthing ?

3 Answers  

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