LINE CURRENT REGULATION 



627 



location. Of the six current equations required, the one for the re- 

 ceived current with the resistance in location (2) was found to possess 

 a maximum within a resistance range which made that arrangement 

 the most favorable from the standpoint of steady-state received cur- 

 rent. 



Curves ti, U and is Fig. 2, show the steady-state value of received 

 current which will be obtained on lines of 500 to 2260 ohms resistance 



aJo •'vJo"''IoWu6o iJooljou iioo 1500 i>uo ii oo 1500 1^00 .U.0 noo i2w :ioo z<cz 2500 



Fig. 2 



with the regulating resistances located at points (1), (2) and (3), re- 

 spectively. In each case just sufficient resistance is added to make the 

 line current .070 ampere. If the resistance of the line is greater than 

 2260 ohms, the line current will fall below .070 ampere without the 

 addition of resistance at either point. It will later be shown that, re- 

 gardless of line current limitations, location (2) results in the maximum 



