Title :
Space charge measurement in XLPE cable insulation under high field
Author :
Hozumi, Naohiro ; Suzuki, Hiroshi ; Okamoto, Tatski ; Watanabe, Kazuo ; Watanabe, Akitoshi
Author_Institution :
Central Res. Inst. of Electr. Power Ind., Yokosuka, Japan
Abstract :
Space charge distribution was measured applying an electric field of over 1 MV/cm to 3-mm thick XLPE cable insulation. Under a high field, hetero charges were formed soon after voltage application, followed by an injection from the cathode. Then intermittent injections of charge packet from the anode took place. The space charge distribution kept changing without becoming stabilized. A simulation was done assuming hysteresis of the injection characteristics due to instability near the anode
Keywords :
XLPE insulation; cable insulation; electrets; electric breakdown; electric field effects; high field effects; space charge; 3 mm; XLPE cable insulation; hetero charges; high field; injection; intermittent injections; space charge distribution; voltage application; Anodes; Cable insulation; Cathodes; Charge measurement; Current measurement; Electric variables measurement; Hysteresis; Space charge; Thickness measurement; Voltage;
Conference_Titel :
Electrets, 1994. (ISE 8), 8th International Symposium on
Conference_Location :
Paris
Print_ISBN :
0-7803-1940-0
DOI :
10.1109/ISE.1994.515248
