WORKING METHODS OF CALCULATION 85 



Example II 



Find the data for drawing the circle diagram for the 

 24i-mile, constant-voltage line, Example I, Chapter X. 

 See Table III. 



Conditions given: 



E = 130,000 

 E 8 = 150,000 



Impedance of transformers and reactance coils to be 

 included. 



Z = 50. 9 +y 27^.5 



Y 



0.000535 



YZ 



= o. 1453 +j 0.0272 



Y Z 



= 0.0726 + 7 0.0136 



4 



YZ 



- 0.0484 + 7 0.0091 



+ 0.0035- 70.0007 

 o.oooi jo. 0007 



F 2 Z 2 



^-^ = +0.0034-70.0014 



F 2 Z 2 



+ o . 0007 jo. 0003 



2.3-4.5 



Further terms of the series are evidently negligible. 

 Adding the series, 



Y Z Y 2 Z 2 



1 (- etc. = o . 1419 + j o . 0258 



