Reserve power system
US5896948A · kind A · utility
50Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1997 |
| Grant date | Apr 27, 1999 |
| Priority date | — |
| Expiry date | Jul 24, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J9/061
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A reserve power system includes a reserve power machine (2) for the generation of power. The reserve power machine (2) is connected via a distribution network (4) to consumers (10,12) and elevator drives (8). The elevator drives include an elevator hoisting motor (28) and a frequency converter (26) controlling it. The elevator drives are provided with regulating devices (26, 44, 46) by means of which the speed of the elevator motor (28) is so adjusted that the power taken by the elevator drive (8) from the distribution network (4) is lower than an adjustable power limit (P.sub.A).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.