Reduced vibration motor winding arrangement

Patent · Wed Jan 01 00:00:00 EST 1997

OSTI ID:871225

Slavik, Charles J ^[1]; Rhudy, Ralph G ^[2]; Bushman, Ralph E ^[3]

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1. Rexford, NY
2. Scotia, NY
3. Lathem, NY

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.

• Research Organization: Knolls Atomic Power Laboratory (KAPL), Niskayuna, NY (United States)
• DOE Contract Number: AC12-76SN00052
• Assignee: United States of America as represented by Department of Energy (Washington, DC)
• Patent Number(s): US 5686774
• OSTI ID: 871225
• Country of Publication: United States
• Language: English

Related Subjects

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
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