Auxiliary power supply switching set
US4446376A · kind A · utility
12Cited by
10References
10Claims
0Family size
Inventor
Key dates
| Filing date | May 18, 1981 |
| Grant date | May 1, 1984 |
| Priority date | — |
| Expiry date | May 18, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/72
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control circuit and auxiliary power supply and a switching means for connecting the load selectively to the auxiliary power supply and the main power supply. The main power supply may be a public utility power line, and the auxiliary power supply is a windmill, a motor and generator all connected together on a common shaft. A control means senses the output voltage of the generator or output frequency and controls the switch to either connect the load to the power line or the auxiliary power supply. A battery is supplied for storing excess windmill power and for driving the motor and generator during periods of low wind.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.