Method for starting a single-phase induction motor, starting device for a single-phase motor and starting system therefor
US9184678B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2012 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Oct 5, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P25/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a starting device for a single-phase induction motor, comprising a stator (M) with an running winding (B1) and a starting winding (B2), a starting device (28) connecting the starting winding (B2) to a source (F) of alternate voltage supply, when in a closed state, the start switch (S1) being carried to an open position when the start of the motor is ended, the starting device (28) comprising: a start switch (S1), an electronic signal-processing device (30) receiving current signals originating from a current sensor (RS) flowing through the start switch (S1) and receiving voltage signals from a current zero-crossing sensor SV, wherein the control unit (30) instructs the closing and opening of the start switch (S1) in accordance with the interpretation of the signals by voltage and current zero-crossing sensors, and time sensors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.