Open neutral detector
US11545825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 2022 |
| Grant date | Jan 3, 2023 |
| Priority date | — |
| Expiry date | Apr 1, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H5/105
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus for detecting an open neutral condition in a split phase power system is described. The apparatus includes two powered lines providing output electricity to an electrical distribution system and a shared neutral line providing a grounded neutral to the first and second powered lines. The apparatus is configured for detecting when an open neutral condition is present in the split phase power system by determining when a power current is present on one or both of the first and second powered lines while a return current is not present on the neutral line; and in response to detecting that the open neutral condition is present, causing an interrupter to interrupt the power supplied by the first and second powered lines or to generate a signal indicating an open condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.