Wednesday, October 21, 2015

JKSSB Electrical Question

Q:-  A 60 Hz, 4 pole turbo generator rated 100 MVA,13.8 KV has an inertia constant of 10 MJ/MVA. Find the stored energy in the rotor at synchronous speed.
 
 
 
 
 
 
 
 
A:  KE=(1/2)MW
 
         WHERE M=HS/fπ     And     W=2πf
Thus
          Energy=HS=10*100=1000MJ
 

 

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