Electrical generator damage protection apparatus and method with circuit breaker trip initiation
US5701070A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 4, 1995 |
| Grant date | Dec 23, 1997 |
| Priority date | — |
| Expiry date | Aug 4, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical generator damage protection apparatus is provided. The protection apparatus includes a circuit breaker which opens and closes an electrical circuit in response to a breaker control signal. A controller is operatively coupled to the circuit breaker to generate the breaker control signal based upon periodically sensed current magnitudes output by a generator. This breaker control signal controls total current output by the generator over a predetermined time span to less than a generator damage curve. The generator damage curve corresponds to a maximum amount of total current which can be generated by the generator over the predetermined time span without damaging the generator. In addition, a electrical generator system having the protection apparatus is provided. Also, a method for protecting an electrical generator from damage with a breaker control signal which controls total current output by the generator over a predetermined time span to less than a generator damage curve is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.