In Dyn11 power transformer if any one of the 3 phases connected to earth in star connected side then please explain effect of the current flow in delta connected side of transformer.(In this case if one phase is shorted to ground in star connected side then we observe the current flow in two phases only not three phases in delta connected primary side. Please explain why it is so?)

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State magnitude criterion.

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define electrical field?

6 Answers   L&T,

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how to Select Lighting arrester? What r the parameters to be considered for the selection of Lighting arrester ?

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What is purpose of reactor?.What is different between line and bus reactor?

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what do you mean by lagging and leading current.explain in detail.

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Give details of your interested designation, the post you are interested to serve the company better and explain why you think you can serve the company better in such position if employed?

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Can Anyone Answer anyone of these ? Q1) why direct SOLUTION of Load Flow Studies in Not Possile ? Q2)Why majority of Buses in power system are load buses Q3)Why one of the buses in Power system is taken as reference bus (slack or swing) Bus ? Q4)Bus Admittance Matrix is a sparce (means it contains some zero elements ) matrix , give reason

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how to mention 5mw generator in kva ? gen voltage is 11kv

6 Answers  

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In winding design, the angle of chording (β) is nearly equal to A 45 degree B 60 degree C 30 degree D 90 degree

1 Answers   Reliance,

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what is the total power generation in india?

0 Answers   GUVNL, HAL,

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electromechanical relay type identification example : type=tjmh t-stants for j- m- h-

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