Synchronization method for current differential protection
US8791730B2 · kind B2 · utility
2Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 9, 2010 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | Nov 9, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04J3/0667
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A synchronization method for current differential protection comprises: selecting a point on the transmission line protected by the current differential protection; measuring the current and the voltage of each of the terminals of said transmission line; calculating the compensating voltage at the selected point respectively according to the measured current and the voltage of the each terminal; detecting and calculating the synchronization error by comparing all the compensating voltages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.