A sensitive method for on-site partial discharge detection on XLPE cable joints

Author

Schichler, Uwe

Author_Institution

Schering-Inst. of High Voltage Technique & Eng., Hannover Univ., Germany

Volume

2

fYear

1997

fDate

25 -30 May 1997

Firstpage

1099

Abstract

Many problems of XLPE-insulated cable systems are caused by internal defects of the joints which have to be mounted on-site. Faults arise from wrong assembly of slip-on accessories, impurities or voids. A suitable solution for a monitoring of cable joints during the after-laying test and service is a sensitive on-site partial discharge (PD) detection. This can be realized in an advantageous way with two rogowski coils, which are placed on both sides of the joint. The addition of the two wide-band measured PD signals will suppress the PD-like noise from outside the joint and only detect the PD caused within the joint

Keywords

XLPE insulation; cable jointing; insulation testing; partial discharges; power cable insulation; power cable testing; power cables; XLPE cable joint; after-laying test; fault; impurity; insulation; internal defect; on-site partial discharge detection; rogowski coil; slip-on accessory; void; Assembly; Cable insulation; Coils; Dielectrics and electrical insulation; Electric breakdown; Frequency; Monitoring; Partial discharges; Testing; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Properties and Applications of Dielectric Materials, 1997., Proceedings of the 5th International Conference on

Conference_Location

Seoul

Print_ISBN

0-7803-2651-2

Type

conf

DOI

10.1109/ICPADM.1997.616639

Filename

616639