Title :
Large low-cost single-phase SEMIHEXTM motors
Author_Institution :
Smith & Sun, Berkeley, CA, USA
Abstract :
These low-cost single-phase motors are high efficiency 3-phase motors with the SEMIHEXTM connection of the windings to two run capacitors. The single-phase winding currents at full load are the same as if the motors were connected to a 3-phase source. The single-phase full-load efficiencies are the same as the 3-phase efficiencies. The line starting current is unity power factor and is approximately two times the full-load current for motors between 10-HP and 100-HP
Keywords :
AC motors; capacitors; machine windings; power factor; starting; 10 to 100 hp; SEMIHEX winding/capacitor connection; contactors; full load; high efficiency 3-phase motors; line starting current; run capacitors; single-phase SEMIHEX motors; single-phase full-load efficiencies; single-phase winding currents; unity power factor; Capacitors; Circuits; Contacts; Induction motors; Irrigation; Reactive power; Rotors; Sun; Torque; Voltage;
Conference_Titel :
Electric Machines and Drives Conference Record, 1997. IEEE International
Conference_Location :
Milwaukee, WI
Print_ISBN :
0-7803-3946-0
DOI :
10.1109/IEMDC.1997.604135
