why generaotr rating is in kva and dc motor in kw?

7 Answers   Bhel, NTPC,

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What will happen if apply dc source for power transformer

4 Answers  

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Can anybody tell me how to calculate(formula) earth flat size(for copper and aluminium).

3 Answers  

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Meggering minimum acceptable Ohms for insulation resistance.

1 Answers   TATA, Wood Group,

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

0 Answers   BK Gulf,

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How to calculate meter constant in HT yard pls give me example for this issue

1 Answers   Juniper Networks, MacLellan,

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dear friends, we are use 130 hp load run with 0.98 power factor ( 38KVAR capacitor connected ). if we need improve the the power factor to 1 (unity). how much kvar capacitor to be add. have any formula? please share with me.

3 Answers   Reliance,

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IF we have 500kva transformer & know the current on HT & LT side, how can we consider for its breaker?

5 Answers  

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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?

0 Answers  

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why slipring motor , at full speed run as squirrel cage motor?

1 Answers  

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A 3-phase IM is supplied from 50 Hz system. It runs at speed of 1440 rpm and slip equal to 4 %. Calculate number of pole pairs. A 1 B 6 C 2 D 3

0 Answers  

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What is the working of SCM CT or purpose in genrator ?

3 Answers   Bhel,

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