Answer / nishad

My question is Why Earthing is not required in Xformer
primary star point of Star / Star connection????

Answer / k.prakashchandra

Eatrthing primary neutral of star/star Tr at the receiving
end is of no use for protection and safety . At sending end
neutral is earthed and it is sufficient.

in thermal power plant the steam produced is made to cool after falling on the turbine blades. my question is why this is done while the same is needed to heat up again. "jab pani ko wapis garam hi karna hai to thanda kyu karte hai"

11 Answers   Bhel,

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what is the difference between dry and wet type of 132kV terminations. which one is durable

0 Answers  

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what is meant by vector group of a transformer? How can it be derived?

0 Answers  

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why C.T protection required for H.T.lines?

4 Answers  

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we are using three transformer 33000/430 vac for three separet block.all three transformer have three LT panel separetly. can be Interconnected all three panel through bus coupler. this is permissable or not by state electricity board.

4 Answers   Piramal Healthcare,

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Dear sir, I am working in wind mill division , pls explain Pls explain in details with formula My question is Wind speed 3.5 M/s Gen RPM is 1500 ( 25 K/w Production ) Wind speed 12 M/s Gen RPM is 1500 ( 220 K/w Production ) Why in 3.5 m/s generation was low , why in 12 m/s generation was high , Pls dont explain wind force or wind density , that one already i know For the above question RPM was same why the KW was different Answer : 1. Its depends on the density ( Force ) of the air Sir , Pls explain wit Formula sir

1 Answers   Vestas,

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what is power factor?

3 Answers  

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what is S.D.F stands for ? (S.D.F unit 80 amp , TPN )

6 Answers  

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What is the RMS and DFT principle of analogue maesurments. Which way they are advangages. where which princples give optimum results.

0 Answers   ABB,

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What is the multiplying factor if line ct ratio is 1000/1 and meter ct ratio is -/5 ?

1 Answers  

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if field current decreases how can the speed increase in the unloaded dc series motor

1 Answers  

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Single line diagrams for star to delta and DOL starters.

0 Answers  

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