Overvoltage device with enhanced surge suppression
US7697252B2 · kind B2 · utility
10Cited by
48References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2007 |
| Grant date | Apr 13, 2010 |
| Priority date | — |
| Expiry date | Apr 1, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/044
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An overvoltage device that is formed from a MOV device that is coupled in parallel with a spark gap. This device is coupled upstream from electronic components to protect these components from damage. For example, in one embodiment, the overvoltage device is coupled to a fault circuit interrupter such as a GFCI, across the phase and neutral lines to protect components of the GFCI from an overvoltage condition. In one embodiment the overvoltage device is formed as an MOV physically coupled to a spark gap wherein the MOV and the spark gap are electrically coupled across the phase line and the neutral line in parallel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.