THE SYNCHRONOUS MOTOR 



307 



When the hack emf. E decreases, more current / flows into 

 rmatiiH . This increased current supplies the extra torque 

 and power required by the increased load. 



When load is applied to a synchronous motor, its average speed 

 cannot decrease since the motor must operate at constant speed. 



:.h:i-<- of inducr.l omf. in sy ndiron. .us motor. 



It cannot draw the ii , -un-eni from the line in the same 



manner that the shunt motor dors, that i- by opera! i- 



WO poles of a rot 



liel<l tyjp- motor. Nm-ln-t inu any llu\ di>tnr- 



. induerd in con.luct(.r a is a maximum when 



