Three-phase induction motor
US4755702A · kind A · utility
9Cited by
0References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1987 |
| Grant date | Jul 5, 1988 |
| Priority date | — |
| Expiry date | Jan 6, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K3/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A three-phase induction motor includes winding slots and a stator winding. The number of winding slots per pole per phase is a noninteger. The stator winding is a three-phase balanced winding. A pitch s of the winding satisfies s=(r-t)/r or s=r/(r+t) (where t is an odd number and r is the order of a harmonic wave to be suppressed).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.