CONVERGENT SERIES 47 



PROBLEM A. 



Find the line drop, by means of the convergent series, for the 

 following line: 



Length of line ................. 200 miles. 



Spacing ....................... 9 feet. 



Conductor .................... No. ooo aluminum cable. 



Load (at receiver end), 4500 K.V.A., 66,000 volts, 80% P.F., 



three phase, 60 cycles. 

 From the tables, 



r = 0.5412, x = 0.784, b = 5.49 X lo" 6 . 



Then . : p 



Z= 108.24 +.7156.8. 

 Y = _ +70.001098. 



YZ = -0.17216 +7 0.11885. 



YZ 



= 0.08608 +7 0.05942. 



YZ 



= 0.04304 +7 0.02971. 

 4 



YZ 



- = 0.02869 ~\~j 0.01981. 

 o 



0.00059 70.00085. 

 + o.ooi 24 j 0.00085. 



= + 0.00065 ~7 o.ooi 70. 



2.3.4 



YZ 



= 0.08608 +7*0.05942. 



(YZ \ 



+ etc.J =- - 0.08543 +70.05772. 



= + 0.00013 70.00034. 



YZ 



0.02869 +7 0.01981. 



2-3 



(YZ \ 

 h etc.J = 0.02856 +7 0.01947. 



