Dual power, constant speed electric motor system
A dual capacity permanent split capacitor electric motor system is provided with a stator having main and auxiliary windings. The main stator winding includes two winding sections which are connected in parallel with each other and across a pair of line terminals while the auxiliary winding is connected in series with a capacitor to form a circuit branch which is connected between the line terminals for operation at a first output power level. Switching means are provided to reconnect the main stator winding sections in series with each other and in series with a second capacitor to form a circuit branch which is connected between the line terminals while the stator auxiliary winding is connected directly between the line terminals for operation at a second output power level. Automatic rotation reversal occurs when the motor switches from the first to the second output power level. 6 figs.
- DOE Contract Number:
- W-7405-ENG-26
- Assignee:
- Westinghouse Electric Corp., Pittsburgh, PA (United States)
- Patent Number(s):
- US 4463302; A
- Application Number:
- PPN: US 6-479775
- OSTI ID:
- 7258144
- Resource Relation:
- Patent File Date: 28 Mar 1983
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ELECTRIC MOTORS
OPEN-LOOP CONTROL
CONTROL THEORY
SPEED REGULATORS
TRANSFORMERS
CONTROL
CONTROL EQUIPMENT
ELECTRICAL EQUIPMENT
ENGINES
EQUIPMENT
MOTORS
320303* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Equipment & Processes