Title :
A sensitive method for on-site partial discharge detection on XLPE cable joints
Author_Institution :
Schering-Inst. of High Voltage Technique & Eng., Hannover Univ., Germany
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;
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
DOI :
10.1109/ICPADM.1997.616639
