Excessive surge protection method and apparatus
US7561399B2 · kind B2 · utility
26Cited by
27References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2006 |
| Grant date | Jul 14, 2009 |
| Priority date | — |
| Expiry date | May 20, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/044
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical meter includes a voltage input, a current input, a measurement device and a surge protection apparatus. The measurement device generates electrical power consumption measurements based upon the voltage input and the current input. The surge protection apparatus may include an inductor, a resistor and a positive temperature coefficient device (PPTC). A protective barrier is provided to physically isolate the surge protection apparatus from other components of the meter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.