NASA NTRS · 19810000001
Three-Phase Power Factor Controller
Abstract
Three-Phase Power-Factor Controller develops a control signal for each motor winding. As motor loading decreases, rms value of applied voltage is decreased by feedback-control circuit. Power consumption is therefore lower than in unregulated operation. Controller employs phase detector for each of three phases of delta-connected induction motor. Phase-difference sum is basis for control.
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Nola, F. J.. 1982-09-01. Three-Phase Power Factor Controller. https://ntrs.nasa.gov/citations/19810000001
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