Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5375026 | Method and device for preventing overstabilization of longitudinal differential protection in case of internal fault | Leif Eriksson | 1994-12-20 |
| 5367425 | Method and device for preventing understabilization of longitudinal differential protection in case of external fault and current transformer saturation | Per Wennerlund | 1994-11-22 |
| 5352983 | Method and apparatus for detecting flashover between conductors in power transmission lines of different voltage levels suspended in parallel from the same towers | Leif Eriksson | 1994-10-04 |