76 



SYNCHRONOUS MOTORS 



pi 



Resultan 

 Total. 

 a + b + c 



O CO *4" 10 O *O O O^O O w/ PO O O w) 



O O to NO 00 O *O 10 O*- f^ co -i GO co *H 

 vO ON w 'O w NO O ON ^" to O ^O ON w> co 

 to NO "<4" r-*- to to CC OO ^" w 1 O ON i"^ O *^> 



M w PO 10 ^** O co vO O OO 



_ _ M N (N 



OOOOOioOOOOOioOOOO 



iiiiiiiiiiiiTTT 



t^. o 'O co O ^ **O f*5 *O ^" O *O O O 10 

 10 w ro **o O\ ^J* "O to N Tj* ^\ N o O to 



^ 



H M W Tf VQ W^ *'J ^^J ^'J '*^' >*-' HJ W 

 tH M C* M CO ^ *> 



M O\ O O O\ *- ONM OOOO W coco^ 

 to IH O w O cO O CO ^O ^t" ^G t*** ^ ON NO 

 CO to to W NO '-O ^" CO ON O *O W CI ON to 



H c< oO ^o N ^J" t^*> O NO NO CO to t- to co 



M C* CO ^ t^ ON C* lO O\ CO 00 *H 

 IH H M Ct 04 T^ 



CO IO ^" H to t^"* 4*^ ^ 



co M o NO CO w ci co NO to to 10 w w 



ooo > o > o^ >v oo"owM^?^?H7c? 



ch 

 Mo 



ine Curre 

 (with Com 

 pensation) 



- 



Correspondin 

 E.M.F. of 

 Synchronou 

 Motors : 

 Et = Ei + ZI\ 



o O t^-d o 



cOf/JcoO M 

 i-i roiof-O 



Active 

 rrent of 

 chronou 

 otors : 



O.I/l. 



C 



nc 

 M 



S 



.. 



1111 



"acS 1 



* 



^HI 



O^OOO 



tOO O M 



Reactive 

 Current to be 

 Neutralized : 



O\MOOirooOO 

 J^ OO O M CO ^O t > * f** 



I 



ooooooooooooooo 



