i. 750-k.w. motor generator raising 23o-voit current 

 to 460 volts. 2. Manchester Corporation's 35,ooo-h.p. 

 turbo-alternator. 3. Underground standard type sub- 



station transformer. 

 powerful rain pumps. 



4. io-h.p. motor operating 

 5. Series of 3-phase motors, 



i,5oo r.p.m., driving cotton mill machinery. 6. Totally 

 enclosed motor, showing one end cover removed. 



7. 6oo-h.p. motor driving hauling gear at a colliery. 



8. Motor driving belt transmission gear "for a French 

 process knitting yarn drawing machine 



ELECTRIC POWER: TYPES OF ELECTRIC MOTORS 



L 4 



