CHAPTER XXVI 

 STARTING COMPENSATORS 



Compensators for starting squirrel-cage induction 

 motors, synchronous motors, and rotary converters are 

 built for voltages from 110 to 13,200 volts. The "switch- 

 ing mechanisms constitute the chief difference between 

 the various types. One of the principal types has a 



Quart er -phase. 



A Ai A 



Fig. 76. Quarter-Phase Compensator 



double-throw oil switch and is so connected that when 

 the motor is thrown on the line, the fuses are in circuit. 

 Figs. 76 and 77 show the wiring for quarter-phase and 

 three-phase compensators of this design. 



[217] 



