Title :
Condition assessment of service aged XLPE distribution cable
Author :
McDermid, W. ; Bromley, J.C.
Author_Institution :
Manitoba Hydro, Winnipeg, Man., Canada
Abstract :
As a result of a voltage conversion from 12 kV to 25 kV at Manitoba Hydro, a significant amount of 15 kV XLPE cable, approximately 25 years of age was abandoned. The opportunity was taken to carry out diagnostic tests consisting of leakage current measurements, location and detection of deterioration in the concentric neutral, and location and quantification of partial discharge sites. Following this, 0.1 Hz breakdown tests were done. Similar amounts of the cable were tested with 0.1 Hz sine wave and 0.1 Hz cos-rectangular waveform. The paper reviews the findings of these tests and their applicability for maintenance purposes
Keywords :
XLPE insulation; cable testing; electric breakdown; electric current measurement; insulation testing; leakage currents; partial discharge measurement; power cable insulation; 0.1 Hz; 15 kV; 25 y; Manitoba Hydro; breakdown tests; concentric neutral; condition assessment; deterioration detection; diagnostic tests; leakage current measurements; maintenance; partial discharge sites; service aged XLPE distribution cable; Aging; Current measurement; Electric breakdown; Leak detection; Leakage current; Partial discharge measurement; Partial discharges; Power cables; Testing; Voltage;
Conference_Titel :
Electrical Insulation Conference and Electrical Manufacturing & Coil Winding Conference, 2001. Proceedings
Conference_Location :
Cincinnati, OH
Print_ISBN :
0-7803-7180-1
DOI :
10.1109/EEIC.2001.965673
