Title :
Study on the dielectric characteristics of DC XLPE cables
Author :
Ogata, S. ; Maekawa, Y. ; Terashima, K. ; Okiai, R. ; Yoshida, S. ; Yamanouchi, H. ; Yokoyama, S.
Author_Institution :
Electr. Power Dev. Co Ltd., Tokyo, Japan
fDate :
7/1/1990 12:00:00 AM
Abstract :
The DC characteristics of XLPE (crosslinked polyethylene) power cables were investigated. Cables with an insulation thickness of 2.5 mm, 9 mm, and 13 mm using either XLPE or conductive-inorganic-filled XLPE (XL-A) were manufactured, and four kinds of breakdown tests (DC, polarity reversal, impulse, and superposing opposite polarity impulse on DC prestress) were performed. A 250 kV, XL-A cable (20 mm thickness) was designed and manufactured using the results. The test results show that the XL-A cable possesses much better DC breakdown characteristics than the XLPE cable and is adequate for use in DC cables
Keywords :
cable insulation; electric breakdown of solids; insulation testing; organic insulating materials; polymers; power cables; 13 mm; 2.5 mm; 20 mm; 250 kV; 9 mm; DC XLPE cables; DC breakdown characteristics; XL-A; breakdown tests; crosslinked polyethylene; dielectric characteristics; insulation testing; power cables; Cable insulation; Conductors; Dielectrics and electrical insulation; Electric breakdown; Manufacturing; Polyethylene; Space charge; Space technology; Testing; Underwater cables;
Journal_Title :
Power Delivery, IEEE Transactions on
