The broken lines in the drawings illustrate portions of the protective relay that form no part of the claimed design.
The broken lines in the drawings illustrate portions of the protective relay that form no part of the claimed design.
| Number | Name | Date | Kind |
|---|---|---|---|
| D278522 | Hardesty | Apr 1985 | S |
| 5015829 | Eilert | May 1991 | A |
| D431239 | Sasago | Sep 2000 | S |
| D465782 | Johnsen | Nov 2002 | S |
| D466111 | Johnsen | Nov 2002 | S |
| D608302 | Liu | Jan 2010 | S |
| D724073 | Ismayilov | Mar 2015 | S |
| D788741 | Ito | Jun 2017 | S |
| D818452 | Liu | May 2018 | S |
| 10063038 | Lin | Aug 2018 | B1 |
| D906276 | Liu | Dec 2020 | S |
| 20050122702 | Chen | Jun 2005 | A1 |
| 20090245746 | Krampotich | Oct 2009 | A1 |
| Entry |
|---|
| TDWorld, Date: Oct. 11, 2021, [online], [site visited Dec. 19, 2022]. Available from internet, URL: https://www.tdworld.com/test-and-measurement/article/21178022/schweitzer-engineering-laboratories-inc-sel-sel-releases-sel851-feeder-protection-relay (Year: 2021). |