scholarly journals Space Charge Behavior in Crosslinked Polyethylene Degraded by Water Tree

1996 ◽  
Vol 116 (9) ◽  
pp. 818-824
Author(s):  
Ying LI ◽  
Jiro KAWAI ◽  
Yasumitsu EBINUMA ◽  
Yasutaka FUJIWARA ◽  
Mitsugu AIHARA ◽  
...  
Keyword(s):  
Space Charge ◽  
Water Tree

scholarly journals Evaluation of graphene/crosslinked polyethylene for potential high voltage direct current cable insulation applications

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Yuan Li ◽  
Guangya Zhu ◽  
Kai Zhou ◽  
Pengfei Meng ◽  
Guodong Wang
Keyword(s):  
Space Charge ◽  
High Voltage ◽  
Direct Current ◽  
Tensile Yield Strength ◽  
Scanning Calorimetry ◽  
Crosslinking Degree ◽  
High Voltage Direct Current ◽  
Water Tree ◽  
Mechanical And Electrical Properties ◽  
Aging Test

AbstractThis paper evaluates the potential usage of graphene/crosslinked polyethylene (graphene/XLPE) as the insulating material for high voltage direct current (HVDC) cables. Thermal, mechanical and electrical properties of blends with/without graphene were evaluated by differential scanning calorimetry (DSC), tensile strength, DC conductivity, space charge measurements and water tree aging test. The results indicate that 0.007–0.008% weight amount of graphene can improve the mechanical and electrical insulation properties of XLPE blends, namely higher tensile/yield strength, improved space charge distribution, and shorter/fewer water tree branches. The improvements mainly attribute to the high stiffness of graphene, deep traps introduced by the interaction zones of graphene and XLPE, and the blockage effect of graphene within XLPE. For thermal performance of XLPE blends, graphene nano-fillers have but limited improvement. The crystallinity of the blends barely changes with the addition of graphene. However, the crosslinking degree increases as the additive-like amounts of graphene doped. The above findings provide a guide for tailoring lightweight XLPE materials with excellent mechanical and electrical performances by doping them with a small amount of graphene.

Correlation between space charge distribution and water-tree location in aged XLPE cable

2001 ◽  
Vol 8 (1) ◽  
pp. 78-81 ◽  
Author(s):  
K. Suzuki ◽  
Y. Tanaka ◽  
T. Takada ◽  
Y. Ohki ◽  
C. Takeya
Keyword(s):  
Space Charge ◽  
Charge Distribution ◽  
Xlpe Cable ◽  
Water Tree ◽  
Space Charge Distribution

scholarly journals Space Charge Behavior in Water Tree Degraded XLPE Cable Insulation

1995 ◽  
Vol 115 (5) ◽  
pp. 411-417 ◽  
Author(s):  
Naohiro Hozumi ◽  
Tatsuki Okamoto ◽  
Yasuyuki Ikeda
Keyword(s):  
Space Charge ◽  
Cable Insulation ◽  
Xlpe Cable ◽  
Water Tree

Study on Space Charge Behavior Related to the Residual Charge Method for Diagnosing Water Tree Degradation of Polymer Insulated Power Cables

2008 ◽  
Vol 128 (2) ◽  
pp. 67-74 ◽  
Author(s):  
Naohiro Hozumi ◽  
Katsumi Uchida ◽  
Yoshinobu Murakami ◽  
Masayuki Nagao ◽  
Gilbert Teyssedre ◽  
...  
Keyword(s):  
Space Charge ◽  
Power Cables ◽  
Residual Charge ◽  
Water Tree
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