What is the equivalent circuit of a transformer and its vector diagram?

0 Answers   Bhel, Madhucon,

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How does a system control centre in a utility plant gets the grid frequency of the electrical network (50 Hz or 60 Hz)by the SCADA system?

1 Answers  

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HOW TO CALCULATE HV TEST VOLTAGE FOR ELECTRICAL EQPT.

0 Answers  

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Please let me if star point(Nutral) of Delta/ Strar transformer, in 4wire (TPN+E) is tobe gruonded seperatly,inaddition to LV Panel earthing????

1 Answers  

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how many types of ratings are there of transformer

5 Answers   Met Trade,

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electricity requires a medium to flow and it cannot flow through air. so how does lightning come to earth through air without any medium?

3 Answers  

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What is meant by celling voltage & current in excitor ?

0 Answers  

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What is the difference between generator and turbo generator - related to power gereration

1 Answers  

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an electric bulb or lamp can operate on ac and dc, if yes then why

5 Answers  

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Transformer TTR test procedure

2 Answers   Descon,

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We use ungrounded DC system (220V/110V) for control and protection system in substations etc. Suppose we have long 2 core DC cables running from our DCDB in control room to the load (length of around 2 to 3 km). Do we need to protect these long DC cables from earth leakages or not? If yes how?

5 Answers   Siemens,

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What is the formula to calculate a three phase alternator

0 Answers  

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