[mcnatjghton] 



ELECTRIC SERIES TRANSFORMERS 



197 



(21) 



(22) 



As before for a and j8 substitute (x — Jy) and (a;+Jy). 



Then 



- (a:-Jy)t - (x + Jy) t 



A 



-xt 



= Ae 



+ Jyt 



•Jyt 



(23) -xt 



= 2 JA€ Sinyt. 



In this case the constant A is essentially imaginary so combination 

 with J gives a real coefficient only. 



T ^ ^ § »o IT, 1^ l(> i% 2.0 2J, -Zj^ 2.C> Z% 3o 32. 3^ 36 3S "to 42. 



'^x ^i /V» 



Fig. 4 



The start of an Oscillatory Current is given in Figure (4). The 



y 

 Primary Current has a frequency of f 



and is zero at zero 



'ITT 



