FORMULAS FOR SHORT LINES IQ 



(7) In-phase current at supply end = -^ in total amperes.* 



(8) Reactive or quadrature current at supply end = 



in total amperes.* 



When this quantity is positive, the current is lagging. 

 When this quantity is negative, the current is leading. 



(9) K.W. loss in line = (AP-BQ- EP). 



(10) Per cent efficiency of line = . p _ B Q per cent. 



Total amps. 

 * Amperes per wire, three phase = -= 



V? 



Amperes per wire, two phase = 



3 

 Total amps. 



