High-speed disconnector using semiconductor technology
US6229228A · kind A · utility
1Cited by
4References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 19, 1999 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Mar 19, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J9/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention specifies a disconnector for decoupling a load from a supplying AC power supply system. The disconnector comprises a transformer whose primary is connected into the AC power supply system. On the secondary side, a rectifier circuit is provided which has a turn-off thyristor connected to it. In normal operation, the turn-off thyristor is kept closed, so that the power supply system supplies the load. In the event of power supply system faults or interruptions, the turn-off thyristor is opened, which disconnects the power supply system from the load owing to the transformer impedance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.