On-line partial discharge detection of MV cables with defect localisation (PDOL) based on two time synchronised sensors

A new and unique measuring system is presented for the online acquisition and analysis of partial discharges (PD-s) in medium-voltage power cables. The system is able to locate the origin(s) of PD-s by using two inductive sensors, each at one cable end. The measuring system is called PDOL, which stands for PD detection On-line with Localization. A patented solution is used for the time synchronization of the data intake at both cable ends and for the on-line calibration. One computer at a remote location collects data from various PDOL measuring systems for final presentation and interpretation. This paper discusses the basics of PDOL and some first measurement results.

[1]  M. S. Mashikian,et al.  Self-learning digital filter for the field location of partial discharge in cables , 1994, Proceedings of 1994 IEEE International Symposium on Electrical Insulation.

[2]  J Jeroen Veen,et al.  On-line signal analysis of partial discharges in medium-voltage power cables , 2005 .

[3]  E.F. Steenis,et al.  Partial discharge diagnostics of long and branched medium-voltage cables , 2001, ICSD'01. Proceedings of the 20001 IEEE 7th International Conference on Solid Dielectrics (Cat. No.01CH37117).

[4]  P.A.A.F. Wouters,et al.  Determination of substation model for correct interpretation of on-line measured PD signals from MV cable systems , 2004, Proceedings of the 2004 IEEE International Conference on Solid Dielectrics, 2004. ICSD 2004..

[5]  P.A.A.F. Wouters,et al.  Sensors for on-line PD detection in MV power cables and their locations in substations , 2003, Proceedings of the 7th International Conference on Properties and Applications of Dielectric Materials (Cat. No.03CH37417).

[6]  E.F. Steennis,et al.  Cancellation of continuous periodic interference for PD detection , 2004, Proceedings of the 2004 IEEE International Conference on Solid Dielectrics, 2004. ICSD 2004..

[7]  van der,et al.  On-line detection and location of partial discharges in medium-voltage power cables , 2005 .