Surge locating system of power transmission line and method thereof
US6259255A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 8, 1998 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Dec 8, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/085
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A surge locating system and a method thereof which can accomplish the surge locating with high accuracy and with relatively simple structure. When the surge occurs, the voltage is generated on the neutral point of Y-connected three-phase alternating current transmission line because of losing a voltage balance on the three-phase alternating current transmission line. The surge locating can be accomplished by detecting the voltage generated in the neutral point. The neutral point is grounded, and the surge locating system according to the present invention is installed between the neutral point and the grounding point. The voltage generated in the neutral point is introduced into the surge locating system and the detecting time thereof is stored. This detecting time is stored in the respective stations, and the surge point can be located based on the detecting time difference between the stations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.