| 摘要 |
This invention relates to a method and system for locating line faults in a medium voltage network (3). Heretofore, the known methods and systems provided relatively limited resolution of fault location. Typically, the fault location information was limited to a distance from the substation (5). In complex medium voltage networks with branching, these systems and methods are not ideal as faults could potentially be in a number of different locations, spread out over a large area. According to the present invention, line mounted sensors (23(a) - 23(I) are positioned both upstream and downstream of each of the branch points (11 (a) - 11 (e), 29(a) - 29(b) and this enables a more accurate determination of the location of the fault in the medium voltage network. Furthermore, artificial neural networks are employed to improve detection and location of faults in the medium voltage network. |
