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Title: Dual power, constant speed electric motor system

Abstract

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.

Inventors:
 [1]
  1. Asheville, NC
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
865113
Patent Number(s):
US 4463302
Assignee:
Westinghouse Electric Corp. (Pittsburgh, PA)
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
dual; power; constant; speed; electric; motor; capacity; permanent; split; capacitor; provided; stator; main; auxiliary; windings; winding; sections; connected; parallel; pair; line; terminals; series; form; circuit; branch; operation; output; level; switching; means; reconnect; directly; automatic; rotation; reversal; occurs; switches; connected directly; constant speed; stator winding; power level; electric motor; output power; main stator; split capacitor; permanent split; dual capacity; switching means; auxiliary winding; speed electric; auxiliary windings; /318/

Citation Formats

Kirschbaum, Herbert S. Dual power, constant speed electric motor system. United States: N. p., 1984. Web.
Kirschbaum, Herbert S. Dual power, constant speed electric motor system. United States.
Kirschbaum, Herbert S. Sun . "Dual power, constant speed electric motor system". United States. https://www.osti.gov/servlets/purl/865113.
@article{osti_865113,
title = {Dual power, constant speed electric motor system},
author = {Kirschbaum, Herbert S},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {1}
}

Patent:

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