[mcnaughton] electric SERIES TRANSFORMERS 



201 



the Secondary current is underdamped as may be seen by the oscil- 

 lation at the start and the greater prominence given to the harmonics 





Soi- 

 



o 



3o 

 2.0 



JO 



^/r^ 



too Z^QQ (^oo 



ccl o-j l'f^QU(?ncy On P<i7n> <y Phaser 



F.a 



in Record No. 70. The other vibrator, which records the Primary 

 current, is slightly overdamped, which tends to smooth out the wave. 



E-{-(c c7 oi /?e s r 57o 1 r e on / T o7 to , I ho Tt* v Tiry^ c ^on 7I0 n f 



f/9 r 



Figure (6) shows the effect of Frequency on the Ratio and Phase 

 of the Alternating component of Secondary current. Figures (7) 



Sec. Ill, 1913—13 



