| 摘要 |
Described herein is a method and apparatus for measuring the potential on a modern shielded high-voltage cable such as those used in medium-voltage distribution networks. A capacitive sensor arrangement (100) is constructed on a cable (110) using pre-existing structures (114, 116, 118, 120) within the cable (110). The use of implicit guarding methods is also described that allows the use of the semiconductor layer (116) present in modern cable design to be retained and to form part of the capacitive sensor arrangement (100). Performance of the sensor arrangement (100) can also be improved using temperature compensation techniques. |
