The principles underlying radio communication (1922)
United States. National Bureau of Standards, Ould, Richard Sheldon, 1889-, United States. Army. Signal Corps · Washington, Govt. Print. Off. · leaf 220
s at F (left-hand diagram. Fig.134) and interchanging them. Care must be taken that thebrushes rest on the commutator at the right place and pointthe right way for smooth running, as described in Section 106. Speed Regulation and Control.—For reasons given under theheading Limiting speed a shunt… … speed between no load and full load being only 5 per cent orless. Shunt motors are therefore often called constant speed motors. This supposes that the voltage applied to the motor is con-stant. If it is too low, the speed falls off, as well as the powerwhich the motor can develop. If it is too…
Telegraph, Wireless · Radio
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