Title :
Breakdown and space charge of LDPE films prepared using metallocene catalyst
Author :
Mori, Tatsuo ; Ishii, Ryusuke ; Banmongkol, Channarong ; Mizutani, Teruyoshi ; Ishioka, Mitsugu
Author_Institution :
Dept. of Electr. Eng., Nagoya Univ., Japan
Abstract :
Polyethylene (PE) has been widely used as electrical insulation for power cables because of its excellent electrical and mechanical properties. Low density PE (LDPE) prepared using a high pressure process has been widely used as insulating polymer of power cables. In this paper, the authors have investigated the performance of new LDPE prepared using metallocene catalyst (m-LDPE) as electrical insulating material. m-LDPE has narrower composition and molecular-weight distributions than LDPE. High-field electrical properties of m-LDPE at 90°C were compared with those of the other LDPEs. In addition, the prestress effect and the effect of space charge on breakdown strength were discussed
Keywords :
catalysis; electric breakdown; molecular weight; polyethylene insulation; polymer films; space charge; 90 C; LDPE film; breakdown strength; composition distribution; electrical insulation; high field electrical properties; low density polyethylene; metallocene catalyst; molecular weight distribution; polymer; power cable; prestress; space charge; Cable insulation; Composite materials; Dielectrics and electrical insulation; Electric breakdown; Mechanical factors; Plastic insulation; Polyethylene; Polymers; Power cables; Space charge;
Conference_Titel :
Conduction and Breakdown in Solid Dielectrics, 1998. ICSD '98. Proceedings of the 1998 IEEE 6th International Conference on
Conference_Location :
Vasteras
Print_ISBN :
0-7803-4237-2
DOI :
10.1109/ICSD.1998.709331
