脱气时间对电缆绝缘中交联副产物含量和直流特性的影响

白健; 张亚; 詹陶; 杨海艳; 程明亮; 阮康杰; 李飞; 高景晖

doi:null

您当前的位置：

首页 >

文章列表页 >

脱气时间对电缆绝缘中交联副产物含量和直流特性的影响

更新时间：2025-06-18

- 脱气时间对电缆绝缘中交联副产物含量和直流特性的影响
- Effect of Degassing Time on Byproducts Content and DC Characteristics of Cable Insulation
- 高压电器 2025年页码：1-11
- 作者机构：
  
  1.西安交通大学电工材料电气绝缘全国重点实验室，西安　 710049
  2.重庆泰山电缆有限公司，重庆　 401120
- 作者简介：
  
  白健（1997—），男，硕士，从事高压交直流电缆绝缘关键技术方面研究（E-mail：2427279840@qq.com）。
  张亚（1988—），男，本科，工程师，从事高压电缆设计及制造研究（E-mail：454401339@qq.com）。
- 基金信息：
- DOI：
  中图分类号：
- 纸质出版日期：
- 稿件说明：
移动端阅览
白健, 张亚, 詹陶, 等. 脱气时间对电缆绝缘中交联副产物含量和直流特性的影响[J/OL]. 高压电器, 2025,1-11.

BAI Jian, ZHANG Ya, ZHAN Tao, et al. Effect of Degassing Time on Byproducts Content and DC Characteristics of Cable Insulation[J/OL]. High voltage apparatus, 2025, 1-11.
白健, 张亚, 詹陶, 等. 脱气时间对电缆绝缘中交联副产物含量和直流特性的影响[J/OL]. 高压电器, 2025,1-11. DOI：

BAI Jian, ZHANG Ya, ZHAN Tao, et al. Effect of Degassing Time on Byproducts Content and DC Characteristics of Cable Insulation[J/OL]. High voltage apparatus, 2025, 1-11. DOI：

摘要

直流电缆的交联过程会在绝缘中产生大量副产物，影响电缆的电气性能。通常采用脱气工艺脱去电缆绝缘中的交联副产物，但随着直流电缆电压等级的升高，绝缘厚度进一步增加，脱除副产物变的越来越困难。文中以不同脱气时间的500 kV高压直流XLPE电缆绝缘切片试样为研究对象，确定了交联副产物相对含量的半定量分析方法，研究了脱气过程电缆绝缘中交联副产物含量的变化和副产物对XLPE电缆绝缘直流性能的影响。结果表明，脱气可以减少电缆绝缘中的副产物，但无法将副产物完全脱除。并且在整个脱气过程中，中绝缘处副产物含量最多，内绝缘和外绝缘处副产物含量最少。脱气75天后，电缆绝缘电导率随副产物含量的降低呈指数形式从10

-13

S/m减少至10

-15

S/m，电缆绝缘的直流击穿场强随副产物含量的变化不明显，平均电荷密度和最大场强畸变率分别由最大值8.3 C·m

-3

、113%线性减少至6.4 C·m

-3

、55%，同时陷阱密度从367 pC减少至102 pC，陷阱深度从0.45 eV减少至0.04 eV。

Abstract

The crosslinking process of DC cable will produce a lot of byproducts in the insulation

which will affect the electrical performance of the cable. The crosslinking byproducts are usually removed by degassing process

but with the increase of voltage level of DC cable and the further increase of insulation thickness

it becomes more and more difficult to remove byproducts. In this paper

500 kV HVDC XLPE cabl

e insulation slices are selected as research samples

and a semi-quantitative analysis method for the relative content of crosslinking byproducts was established. The change of crosslinking byproducts content in cable insulation during degassing and the effect on the DC feature of insulation were studied. The results show that degassing can reduce the by-products in cable insulation

but can not completely remove the byproducts. In the whole degassing process

the content of byproducts in the middle insulation is the highest

and the content of by-products in the inner insulation and the outer insulation is the least. After 75 days of degassing

the DC conductivity of insulation decreases exponentially from 10

-13

S/m to 10

-15

S/m with the decrease of byproducts content. DC breakdown field strength does not change significantly with the content of byproducts. The average charge density and maximum field strength distortion respectively decreased linearly from 8.3 C·m

-3

and 113% to 6.4 C·m

-3

and 55%. Meanwhile

the trap density decreased from 367 pC to 102 pC

and the trap depth decreased from 0.45 eV to 0.04 eV.

关键词

Keywords

references

邓雯玲 , 卢继平 , 苟鑫 , 等 . 适用于高压电缆-架空线混合线路的新型重合闸方案 [J ] . 电力系统自动化 , 2021 , 45 ( 12 ): 126 - 132 .

DENG Wenling , LU Jiping , GOU Xin , et al . Novel reclosing scheme for hybird lines with high-voltage cable and overhead lines [J ] . Automation of Electric Power Systems , 2021 , 45 ( 12 ): 126 - 132 .

王孟夏 , 周生远 , 杨明 , 等 . 计及海底电缆热特性的可接纳海上风电装机容量评估方法 [J ] . 电力系统自动化 , 2021 , 45 ( 6 ): 195 - 202 .

WANG Mengxia , ZHOU Shengyuan , YANG Ming , et al . Assessment method for acceptable installed capacity of offshore wind farms considering thermal characteristics of submarine cables [J ] . Automation of Electric Power Systems , 2021 , 45 ( 6 ): 195 - 202 .

范路 , 陈萌 , 张洪亮 , 等 . 型式试验对高压直流电缆交联副产物迁移过程及电导特性的影响 [J ] . 电气工程学报 , 2018 , 13 ( 11 ): 44 - 51 .

FAN Lu , CHEN Meng , ZHANG Hongliang , et al . Effect of type test on migration process of cross-linked by-products and conduction characteristics of HVDC cables [J ] . Journal of Electrical Engineering , 2018 , 13 ( 11 ): 44 - 51 .

侯帅 , 张逸凡 , 赵远涛 , 等 . 脱气对525 kV交联聚乙烯绝缘直流电缆空间电荷特性的影响 [J ] . 南方电网技术 , 2021 , 15 ( 12 ): 78 - 85 .

HOU Shuai , ZHANG Yifan , ZHAO Yuantao , et al . Effect of degassing on space charge properties of 525 kV XLPE insulated DC cable [J ] . Southern Power System Technology , 2021 , 15 ( 12 ): 78 - 85 .

苏鹏飞 , 吴建东 , 祝曦 , 等 . 脱气处理对直流电缆绝缘击穿场强的影响 [J ] . 中国电机工程学报 , 2020 , 40 ( 2 ): 663 - 671 .

SU Pengfei , WU Jiandong , ZHU Xi , et al . Effect of degassing treatment on breakdown strength in direct current cable insulation [J ] . Proceedings of the CSEE , 2020 , 40 ( 2 ): 663 - 671 .

王文超 , 王海洋 , 赵囿林 , 等 . 220 kV XLPE绝缘海缆脱气效率和低碳性研究 [J ] . 电线电缆 , 2023 ( 3 ): 12 - 17 .

WANG Wenchao , WANG Haiyang , ZHAO Youlin , et al . Study on degassing efficiency of green and low-carbon 220 kV XLPE insulated submarine cables [J ] . Electric Wire & Cable , 2023 ( 3 ): 12 - 17 .

岳振国 , 钱朝晖 , 孙亚斌 , 等 . 交联聚乙烯高压电缆脱气效率研究 [J ] . 电线电缆 , 2018 ( 5 ): 15 - 19 .

YUE Zhenguo , QIAN Chaohui , SUN Yabin , et al . Study on degassing efficiency of crosslinked polyethylene high voltage cable [J ] . Electric Wire & Cable , 2018 ( 5 ): 15 - 19 .

王志辉 . 应用于交联电缆的热泵去气室恒温节能系统 [J ] . 自动化与信息工程 , 2017 , 38 ( 3 ): 6 - 11 .

WANG Zhihui . Constant temperature and energy saving system for heat pump degassing chamber applied to cross-linked cable [J ] . Automation & Information Engineering , 2017 , 38 ( 3 ): 6 - 11 .

赵囿林 , 张建民 , 胡明 , 等 . 大长度500 kV XLPE超高压海底电缆关键技术研究 [J ] . 电线电缆 , 2020 ( 2 ): 12 - 16 .

ZHAO Youlin , ZHANG Jianmin , HU Ming , et al . Key technology research for large length 500 kV XLPE UHV submarine cable [J ] . Electric Wire & Cable , 2020 ( 2 ): 12 - 16 .

OHKI Y , HIRAI N , KOBAYASHI K , et al . Effects of byproducts of crosslinking agent on space charge formation in polyethylene-comparison between acetophenone and alpha-methylstyrene [C ] // 2000 Annual Report Conference on Electrical Insulation and Dielectric Phenomena . Victoria, Canada : IEEE , 2000 : 535 - 538 .

屠亦军 , 张洪亮 , 高震 , 等 . 脱气处理对交联聚乙烯中交联副产物及空间电荷特性的影响 [J ] . 绝缘材料 , 2018 , 51 ( 4 ): 58 - 63 .

TU Yijun , ZHANG Hongliang , GAO Zhen , et al . Effects of degassing treatment on crosslinking byproducts and space charge characteristics in cross-linked polyethylene [J ] . Insulating Materials , 2018 , 51 ( 4 ): 58 - 63 .

KANAI T , FUJITOMI T , MIYAKE H , et al . Reduction effect of cross-linking by-products on dielectric strength in polyethylene under dc stress [C ] // 2017 International Symposium on Electrical Insulating Materials (ISEIM) . Toyohashi, Japan : IEEE , 2017 : 489 - 492 .

钟琼霞 , 兰莉 , 吴建东 , 等 . 交联副产物对交联聚乙烯中空间电荷行为的影响 [J ] . 中国电机工程学报 , 2015 , 35 ( 11 ): 2903 - 2910 .

ZHONG Qiongxia , LAN Li , WU Jiandong , et al . The influence of cross-linked by-products on space charge behaviour in XLPE [J ] . Proceedings of the CSEE , 2015 , 35 ( 11 ): 2903 - 2910 .

沈耀军 , 陈振新 , 易姝慧 , 等 . 预鉴定试验对高压直流电缆绝缘电导特性的影响 [J ] . 绝缘材料 , 2018 , 51 ( 9 ): 61 - 69 .

SHEN Yaojun , CHEN Zhenxin , YI Shuhui , et al . Effects of pre-qualification tests on conductivity characteristics in HVDC cable insulation [J ] . Insulating Materials , 2018 , 51 ( 9 ): 61 - 69 .

金海云 , 曾飏 , 马佳炜 , 等 . 脱气热处理对110 kV交流XLPE电缆绝缘力学性能和介电性能的影响 [J ] . 绝缘材料 , 2019 , 52 ( 8 ): 24 - 31 .

JIN Haiyun , ZENG Yang , MA JIA Wei , et al . Effect of degassing heat treatment on mechanical and dielectric properties of 110 kV AC XLPE insulation [J ] . Insulating Materials , 2019 , 52 ( 8 ): 24 - 31 .

李志伟 , 金海云 , 张涛 , 等 . 脱气时间对交联聚乙烯电缆绝缘材料聚集态结构与链结构的影响 [J ] . 西安交通大学学报 , 2018 , 52 ( 4 ): 15 - 23 .

LI Zhiwei , JIN Haiyun , ZHANG Tao , et al . Effect of degassing time on aggregation structure and chain structure of XLPE cable insulation material [J ] . Journal of Xi'an Jiaotong University , 2018 , 52 ( 4 ): 15 - 23 .

李飞 , 钟力生 , 李文鹏 , 等 . 挤包绝缘高压直流电缆制造与应用中的径向梯度效应 [J ] . 中国电力 , 2021 , 54 ( 4 ): 63 - 71 .

LI Fei , ZHONG Lisheng , LI Wenpeng , et al . The radial gradient effect of HVDC extruded cables in manufacturing and application [J ] . Electric Power , 2021 , 54 ( 4 ): 63 - 71 .

罗兵 , 孟繁博 , 王婷婷 , 等 . 脱气处理对高压直流电缆绝缘特性的影响 [J ] . 电工技术学报 , 2021 , 36 ( s2 ): 730 - 735 .

LUO Bing , MENG Fanbo , WANG Tingting , et al . Effect of degassing treatments on insulation characteristics of high voltage DC cables [J ] . Transactions of China Electrotechnical Society , 2021 , 36 ( s2 ): 730 - 735 .

聂永杰 , 赵现平 , 李盛涛 . 聚乙烯陷阱特性对真空直流沿面闪络性能的影响 [J ] . 物理学报 , 2019 , 68 ( 22 ): 351 - 360 .

NIE Yongjie , ZHAO Xianping , LI Shengtao . Influence of trap characteristics on DC surface flashover performance of low density polyethylene in vacuum [J ] . Acta Physica Sinica , 2019 , 68 ( 22 ): 351 - 360 .

MEUNIER M , QUIRKE N , BINESTI D , et al . Identification of space charge in cable insulation: a new approach using molecular simulation [C ] // IEEE 1997 Annual Report Conference on Electrical Insulation and Dielectric Phenomena . Minneapolis, USA : IEEE , 1997 : 68 - 71 .

陈萌 . XLPE电缆中交联副产物对空间电荷影响的定量表征参数研究 [D ] . 上海 : 上海交通大学 , 2020 .

CHEN Meng . Study on quatitative charate-rization parameters for the effect of cross-linked byproducts on space charge in XLPE cables [D ] . Shanghai : Shanghai Jiao Tong University , 2020 .

申作家 , 罗智奕 , 詹威鹏 , 等 . 基于介质体内陷阱参数与松弛过程的XLPE电缆绝缘热老化行为分析 [J ] . 中国电机工程学报 , 2016 , 36 ( 19 ): 5382 - 5388 .

SHEN Zuojia , LUO Zhiyi , ZHAN Weipeng , et al . Analysis on thermal aging behaviors of XLPE cable insulation based on trap parameters and relaxation process [J ] . Proceedings of the CSEE , 2016 , 36 ( 19 ): 5382 - 5388 .

高俊国 , 张豪 , 李丽丽 , 等 . 交联聚乙烯/蒙脱土纳米复合物空间电荷特性研究 [J ] . 高分子学报 , 2013 ( 1 ): 126 - 133 .

GAO Junguo , ZHANG Hao , LI Lili , et al . Study on space charge characteristics of XLPE/O-MMT nanocomposites [J ] . Acta Polymerica Sinica , 2013 ( 1 ): 126 - 133 .

浏览量

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

基于IRC法和局部放电法的车载高压电缆绝缘状态评估

预电离对尖—板间隙冲击击穿的影响

注入空间电荷对SF₆气体中尖—板间隙正冲击击穿电压的影响

空间电荷对SF₆气体正雷电冲击击穿的作用

自由基清除剂对电老化聚乙烯中空间电荷的影响