MOV failure mode identification
US7593209B2 · kind B2 · utility
4Cited by
10References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 2008 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | May 23, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/042
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A surge protector includes a thermal fuse, a metal oxide varistor electrically connected in series relation to the thermal fuse, and a detection network electrically connected in parallel relation to the thermal fuse and the metal oxide varistor. A first indicating means indicates whether or not the thermal fuse is in operation and a second indicating means indicates whether or not the metal oxide varistor is in operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.