Influence of aggregation structure and traps on surface flashover of XLPE in vacuum

被引：15

作者：

Li Sheng-Tao ^{[1
]}

Huang Qi-Feng ^{[1
]}

Sun Jian ^{[1
]}

Zhang Tuo ^{[1
]}

Li Jian-Ying ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China

来源：

ACTA PHYSICA SINICA | 2010年 / 59卷 / 01期

关键词：

XLPE; surface flashover; aggregation structure; trap;

D O I：

10.7498/aps.59.422

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In the paper, the influence of aggregation structure and traps on both DC and impulse flashover voltage of semi-crystalline cross-linked polyethylene (XLPE) in vacuum are investigated. After heat treatment at 135 degrees C for 10 min, the XLPE samples were quenched to -56 degrees C or -25 degrees C, cooled normally, cooled at a rate of 1 degrees C/min or 0.5 degrees C/min to room temperature, respectively. The electrical properties, microstructure and trap distribution of heat-treated samples were studied. Compared with untreated samples, it is found that the dc and impulse flashover voltages of heat treated samples are raised by 76% and 19%, respectively. It is proposed that the aggregation structure and trap level is changed by heat treatment, leading to the improvement of surface flashover properties in vacuum. It is suggested that the vacuum flashover characteristics can be improved by controlling the aggregation structure and trap levels of semi-crystalline polymers.

引用

页码：422 / 429

页数：8

共 12 条

[1] Space charges formed in the hot compression molding process of low density polyethylene [J].

An Zhen-Lian ;

Yang Qiang ;

Zheng Fei-Hu ;

Zhang Ye-Wen .

ACTA PHYSICA SINICA, 2007, 56 (09) :5502-5507

[2]

Ding Li-Jian, 2001, Proceedings of the CSEE, V21, P27

[3]

DING LJ, 1999, IEEE ANN REP C EL IN, V1, P429

[4]

Jin-zhuang Lu, 2003, Proceedings of the CSEE, V23, P77

[5] DIELECTRIC SURFACE PREFLASHOVER PROCESSES IN VACUUM [J].

LI, CR ;

SUDARSHAN, TS .

JOURNAL OF APPLIED PHYSICS, 1994, 76 (06) :3313-3320

[6] FLASHOVER OF INSULATORS IN VACUUM - REVIEW OF THE PHENOMENA AND TECHNIQUES TO IMPROVE HOLDOFF VOLTAGE [J].

MILLER, HC .

IEEE TRANSACTIONS ON ELECTRICAL INSULATION, 1993, 28 (04) :512-527

[7] Improved design of a high-voltage vacuum-insulator interface [J].

Stygar, WA ;

Lott, JA ;

Wagoner, TC ;

Anaya, V ;

Harjes, HC ;

Ives, HC ;

Wallace, ZR ;

Mowrer, GR ;

Shoup, RW ;

Corley, JP ;

Anderson, RA ;

Vogtlin, GE ;

Savage, ME ;

Elizondo, JM ;

Stoltzfus, BS ;

Andercyk, DM ;

Fehl, DL ;

Jaramillo, TF ;

Johnson, DL ;

McDaniel, DH ;

Muirhead, DA ;

Radman, JM ;

Ramirez, JJ ;

Ramirez, LE ;

Spielman, RB ;

Struve, KW ;

Walsh, DE ;

Walsh, ED ;

Walsh, MD .

PHYSICAL REVIEW SPECIAL TOPICS-ACCELERATORS AND BEAMS, 2005, 8 (05) :1-16

[8] Charge transport modeling in insulating polymers: From molecular to macroscopic scale [J].

Teyssedre, G ;

Laurent, C .

IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION, 2005, 12 (05) :857-875

[9]

WANG LH, 1988, THERMALLY STIMULATED, P247

[10]

Wang X., 2000, Trans. China Electrotech. Soc., V15, P84

← 1 2 →