Method and system for detecting the cabling errors between a starter and an electric motor
US7902789B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2007 |
| Grant date | Mar 8, 2011 |
| Priority date | — |
| Expiry date | Oct 4, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P1/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method and a system for controlling an asynchronous electric motor for detecting cabling errors between the electric motor and a motor starter. The electric motor including three windings distributed over three branches in a delta configuration and controlled by the motor starter, which includes power semiconductors directly connected in series within the three branches of the delta configuration of the three windings. In one embodiment, the method includes applying a voltage in a first branch of the delta, priming the semiconductor of the first branch after a priming delay, measuring an electrical current generated within the first branch during the priming, and determining the configuration of the cabling of the first branch according to the measured electrical current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.