Protection system for an electric meter
US11513144B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2020 |
| Grant date | Nov 29, 2022 |
| Priority date | — |
| Expiry date | Jan 19, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H9/06
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A protection system described herein includes a first connector, a second connector, and a voltage-limiter device. The first connector is configured to connect to a first load-side terminal of an electric meter, and the second connector is configured to connect to a second load-side terminal of the electric meter. In a circuit between the first connector and the second connector, the voltage-limiter device is configured to clamp a voltage between the first and second load-side terminals at a trigger voltage, to prevent a greater voltage from reaching the electric meter when a service-disconnect switch of the electric meter is open and an external voltage greater than the trigger voltage is applied to a load side of the electric meter. The voltage-limiter device provides a conductive path in parallel with a customer premises associated with the electric meter when the voltage between first and second connectors reaches the trigger voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.