System and a method for monitoring and warning regarding the presence of manually and temporarily fitted ground connectors on high voltage conductors, as well as a warning device and a conductor means included in the system
US6243016A · kind A · utility
Inventor
Key dates
| Filing date | Dec 3, 1999 |
| Grant date | Jun 5, 2001 |
| Priority date | — |
| Expiry date | Dec 3, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G7/22
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system for warning regarding the presence of manually attached grounding contacts (21) on high voltage conductors (3), comprises PA1 a) a naked additional conductor (1) close to the high voltage conductor (3), however spaced therefrom, and with an ability to be clamped resiliently to contact with the high voltage conductor (3) when the grounding contact (21) is attached; and PA1 b) a warning device (20) having connection means (4, 5) to the high voltage conductor (3) and to the additional conductor (1). The warning device has, in a part (24) arranged near the high voltage conductor (3), equipment for sensing whether the additional conductor (1) has been brought to contact with the high voltage conductor or not, and for transmitting a signal regarding this condition to another part (26) of the warning device which is remote from the high voltage conductor, preferably at ground potential. From this part (26) the signal can be transmitted to an operation central.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.