why grid frequency varry time to time?

2 Answers  

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For a 500 MVA 400/220/33KV transformer following data given HV power = 500 MVA IV power = 500 MVA LV power = 5 MVA If input power is 500 MVA then how output power is (500+5)MVA. Can anyone help

1 Answers   MEIL,

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how can we make cable shedule for controll wiring ? which details must be required for it.?

0 Answers   L&T,

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which relay is better , instantaneous or IDMT relay .

2 Answers  

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why we use delta connection in transformer

2 Answers   UPPCL,

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how can we find a burden of potential transformer? what does it effects? how can we calculate rated load of it?

4 Answers   Areva, KPTCL,

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A 10 kva ,400v/200V , single phase transformer with 10% leakage impedance draws a steady short -circuit line current of

1 Answers  

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in our transmisison sub station why we step down firstly 132kv\33kv then 33kv to 11kv. can we direct step down 132kv to 11kv.

4 Answers  

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Does human body can effect the electric shock when stand on Insulated material?

2 Answers  

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What is the material used for the core of a high freiquency transformer?

3 Answers   Videocon,

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Explain about how is it working Earth fault'relay and wahts the resistance value of earth bed

0 Answers  

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can motors working at parallel operation like D.G set and transformers? It means asking about two motors coupled with same load???

1 Answers  

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