Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 1147
and causetrouble. I£ the current in the series field acts in the same direc-tion as that of the shunt fields^ the motor will slow upsome when a heavy load comes on, but will take care of 1118 Steam Engineering the load without much t-rouble. Fig. 489 shows a start-ing box arranged as a speed… … Fig. 4S9 intermediate point the motor will run at reduced speed.This sort of speed regulation can be used only where theload on the motor is quite constant. If the load varies, thespeed will vary. Another and a better way of varyingthe speed of motors consists in cutting a variable resist- Electric…
