Device for the automatic testing of joints in electrical high voltage lines
US5663718A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1995 |
| Grant date | Sep 2, 1997 |
| Priority date | — |
| Expiry date | Feb 10, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/66
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for automatic testing of electrical high voltage lines is described, comprising a support (1), a driving wheel (2) for lying against the line (3) with a remotely controlled device (4) and a means for remotely controlled automatic measurement of physical data at the joint (11) in question). Means for the transfer of measurement data to a receiver is provided along with a shielding means (15) to shield the transfer means. The device is characterized primarily in that it is provided with a guide rails means (7,8,9) for steering of the device, carried by a lifting means such as a helicopter or crane for lying the driving wheel against a line. Physical measurement may comprise contacting as well as non-contacting measurement in the vicinity of and at a joint in question. To compensate for voltages which may be induced in the measuring means, a compensation circuit is provided. The compensation circuit may be provided with a flat coil which may be rotated by a stepper motor or the like. Voltage in the measuring circuit may be measured continuously during stepwise rotation of the flat coil to determine a measured voltage minima and maxima. The minimum voltage measured correctly c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.