At what condition differential relay will act in transformer and ht motor?

1 Answers   Equate,

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Explain using drawings what is reverse PID action w.r.t PID controllers.

0 Answers   L&T,

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what is NGR in generator?

4 Answers  

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sir i ve applied for hindustan petroleum and power grid india ltd..and the exams on feb 22.can you pls send model papers and tell how to prepare for those.i need to get into any of these for sure.....

0 Answers  

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keeping in view of parallel operation which of the 3 phase transformer connection are possible? a)delta-delta to delta-star b) delta-delta to star-delta c) star-star to delta-delta d) delta-star to star-delta

4 Answers   Ecil, Siemens,

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how to calculate the size of cable for 100 kva load,?can somebody tell me with a formula

7 Answers   Apollo,

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How to Calculate Contracted Maximum demand using motor Hp or Current

3 Answers  

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We have two Al.busbars each of size 125mm*10 mm connected in parallel.To increase the current rating ,can we connect third busbar of size 100mm*10mm in parallel to existing two busbars?In my opinion ,if we connect busbars of different sizes in parallel,then the busbar of lowest size will take much current.So this type of paralleling should be avoided .Am I correct?

1 Answers   PDP Steel,

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1. what is the power factor and whatis his losses 2. what is the working procedure of 51RNB AND 87 relay

3 Answers   ABB,

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How do we find the rating of a transformer, if it got burnt badly.

0 Answers  

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what will happen when a electric bulb is connected between two phases.it will glow or not

18 Answers  

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what is thresold of perception

0 Answers  

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