Three-phase power-factor controller with soft start is based on earlier version that does not control starting transients. Additional components serve to turn off "run" command signal and substitute gradual startup command signal during preset startup interval. Improved controller reduces large current surge that usually accompanies starting. Controller applies power smoothly, without causing motor vibrations.
Soft-Starting Power-Factor Motor Controller
NASA Tech Briefs ; 7 , 1
01.03.1983
Sonstige
Keine Angabe
Englisch
Power starting circuit, power supply circuit, controller, motor and vehicle
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