Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8031447 | Transformer through-fault current monitor | Armando Guzman-Casillas | 2011-10-04 |
| 7940054 | System and method to zero-sequence verify ground return path integrity by comparing measured zero-sequence current in an autotransformer with a second zero-sequence current source | Casper A. Labuschagne | 2011-05-10 |
| 7903381 | Negative sequence differential element | Casper A. Labuschagne | 2011-03-08 |