In this paper measuring results of partial discharges in power cable accessories are described. For the purpose of measuring simultaneously partial discharge activity in three or more accessories during an acceptance test, a wireless partial discharge detection system was developed. Therefore, each power cable accessory is equipped with either an internal or external sensor to decouple the partial discharge signals. The system uses narrow-band detection and is described in this paper. The computers controlling the measuring units are connected via a wireless network which allows communication between the different units and the main computer situated at the voltage source site. Moreover, effective real time noise-suppression is possible by tuning the system to a noise-free frequency band. Practical examples of this system are shown based on several measurements performed in the field.
|Publisher||IEEE/Bandung Institute of Technology|
|Conference||ICPADM 2006 8th international conference on properties and applications of dielectric materials, Denpasar|
|Period||26/06/06 → 30/06/06|
- conference contrib. refereed
- Conf.proc. > 3 pag