Method and apparatus for monitoring current of ground wire of armouring shielding cable in strong electromagnetic environment
US12153072B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2023 |
| Grant date | Nov 26, 2024 |
| Priority date | — |
| Expiry date | Dec 29, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/58
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Provided are a method and apparatus for monitoring a current of the ground wire of an armouring shielding cable in a strong electromagnetic environment. In the method, a summation of currents of the ground wires in the armouring layer and a summation of currents of the ground wires in the shielding layer of M cables in a terminal box are collected, and a primary ground copper busbar potential and a secondary ground copper busbar potential of the terminal box and a ground current of an adjacent terminal box are collected; a potential difference alarm can be achieved; and according to whether a potential difference is alarmed, terminal box cable loop loop-current alarms are performed respectively using different criteria.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.