Method and apparatus for detecting and isolating shorts and other troubles on a polling loop
US6777951B2 · kind B2 · utility
2Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2002 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Nov 23, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/08
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An Addressable Electronic Switch (AES) is disclosed together with unique S/W (software) procedures for a system control to detect, locate, and isolate shorts, overloads, and other troubles, such as temporary breaks or disconnects, on a Vplex or similar 2-wire polling loop. The addressable electronic switches are placed at strategic locations throughout the polling loop, and are individually commanded by the system control to either connect or disconnect its respective branch from the rest of the polling loop, to locate and isolate a troubled area from the rest of the polling loop.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.