Apparatus for interfacing a three phase power supply to a load
US7633185B2 · kind B2 · utility
6Cited by
9References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 9, 2006 |
| Grant date | Dec 15, 2009 |
| Priority date | — |
| Expiry date | Jun 12, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H11/004
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus monitors and controls application of three phases of alternating voltage to a load by detecting the sequence of the three phases. A switch module is operated, in response to the detected sequence, to ensure that the three phases are properly applied to the load, even if the utility lines are improperly connected. The monitoring also senses loss of a phase in which case the switch module disconnects the application of electricity to the load. The apparatus is capable of being used with different loads that operate at different peak to peak levels of alternating voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.