Power Systems
A guard ring is used in string type insulator having 3 units to improve string efficiency. Find the capacitance of metal link 2 if pin to earth capacitance of each unit is 1 F?

 0.5 F
 2 F
 4 F
 1 F

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Power Systems
The modern trend in electric power generation

 to have large size thermal plants near load centre.
 to have large number of small size thermal plants located at different places.
 to have large size thermal plant located near coal fields.
  none of above.

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