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U.S. Department of Energy
Office of Scientific and Technical Information

Permanent split capacitor single phase electric motor system

Patent ·
OSTI ID:7249708

A permanent split capacitor single phase electric motor achieves balanced operation at more than one operating point by adjusting the voltage supplied to the main and auxiliary windings and adjusting the capacitance in the auxiliary winding circuit. An intermediate voltage tap on an autotransformer supplies voltage to the main winding for low speed operation while a capacitive voltage divider is used to adjust the voltage supplied to the auxiliary winding for low speed operation. 4 figs.

DOE Contract Number:
W-7405-ENG-26
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (United States)
Patent Number(s):
US 4465962; A
Application Number:
PPN: US 6-479776
OSTI ID:
7249708
Country of Publication:
United States
Language:
English