THE POLYPHASE SYSTEM. 



103 



c, Fig. 96, represent the three equal currents, 60 apart in phase, 

 which are delivered to three similar receiving circuits x y y and z 



N 



Fig. 95. 



connected as shown in Fig. 94. It is evident that the current c 

 is equal to the vector sum of a and b, or, in other words, the 



c 



current c is at each instant equal to the sum of the two currents 

 a and b. Therefore, if the connections of the winding C, Fig. 



