Reduced vibration motor winding arrangement
Abstract
An individual phase winding arrangement having a sixty electrical degree phase belt width for use with a three phase motor armature includes a delta connected phase winding portion and a wye connected phase winding portion. Both the delta and wye connected phase winding portions have a thirty electrical degree phase belt width. The delta and wye connected phase winding portions are each formed from a preselected number of individual coils each formed, in turn, from an unequal number of electrical conductor turns in the approximate ratio of .sqroot.3. The individual coils of the delta and wye connected phase winding portions may either be connected in series or parallel. This arrangement provides an armature winding for a three phase motor which retains the benefits of the widely known and utilized thirty degree phase belt concept, including improved mmf waveform and fundamental distribution factor, with consequent reduced vibrations and improved efficiency.
- Inventors:
-
- Rexford, NY
- Scotia, NY
- Lathem, NY
- Issue Date:
- Research Org.:
- Knolls Atomic Power Laboratory (KAPL), Niskayuna, NY (United States)
- OSTI Identifier:
- 871225
- Patent Number(s):
- 5686774
- Assignee:
- United States of America as represented by Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
- DOE Contract Number:
- AC12-76SN00052
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- reduced; vibration; motor; winding; arrangement; individual; phase; sixty; electrical; degree; belt; width; armature; delta; connected; portion; wye; portions; thirty; formed; preselected; coils; unequal; conductor; approximate; ratio; sqroot; series; parallel; provides; retains; benefits; widely; utilized; concept; including; improved; mmf; waveform; fundamental; distribution; factor; consequent; vibrations; efficiency; armature winding; phase winding; improved efficiency; arrangement provides; electrical conductor; connected phase; dual phase; including improved; degree phase; phase motor; delta connected; winding arrangement; individual phase; electrical degree; /310/
Citation Formats
Slavik, Charles J, Rhudy, Ralph G, and Bushman, Ralph E. Reduced vibration motor winding arrangement. United States: N. p., 1997.
Web.
Slavik, Charles J, Rhudy, Ralph G, & Bushman, Ralph E. Reduced vibration motor winding arrangement. United States.
Slavik, Charles J, Rhudy, Ralph G, and Bushman, Ralph E. Wed .
"Reduced vibration motor winding arrangement". United States. https://www.osti.gov/servlets/purl/871225.
@article{osti_871225,
title = {Reduced vibration motor winding arrangement},
author = {Slavik, Charles J and Rhudy, Ralph G and Bushman, Ralph E},
abstractNote = {An individual phase winding arrangement having a sixty electrical degree phase belt width for use with a three phase motor armature includes a delta connected phase winding portion and a wye connected phase winding portion. Both the delta and wye connected phase winding portions have a thirty electrical degree phase belt width. The delta and wye connected phase winding portions are each formed from a preselected number of individual coils each formed, in turn, from an unequal number of electrical conductor turns in the approximate ratio of .sqroot.3. The individual coils of the delta and wye connected phase winding portions may either be connected in series or parallel. This arrangement provides an armature winding for a three phase motor which retains the benefits of the widely known and utilized thirty degree phase belt concept, including improved mmf waveform and fundamental distribution factor, with consequent reduced vibrations and improved efficiency.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1997},
month = {1}
}
Works referenced in this record:
New 3-phase winding of low m.m.f.-harmonic content
journal, January 1970
- Hughes, A.
- Proceedings of the Institution of Electrical Engineers, Vol. 117, Issue 8