 ans  =
 
    1.  
 
-->exec('/home/home438/Pictures/Chapter_14/Example_14_8/example_14_8.sce', -1)
 
 The power angle equations for different times of fault are   

 Before the fault : 	 Pmax * sin(delta) = 2.100 * sin(delta)

 During the fault : 	 r1 * Pmax * sin(delta) = 0.808 * sin(delta)

 After the fault : 	 r2 * Pmax * sin(delta) = 1.500 * sin(delta)


 r1 = 0.385 
 r2 = 0.714 


 delta_max = 2.412 rad 
 cos(delta_cr) = 0.126 

 Critical clearing angle is 82.780 degrees 
-->diary(0)
