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吸附剂对SF6典型分解产物含量及变化规律的影响
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吸附剂对SF6典型分解产物含量及变化规律的影响
Effects of Adsorbent on Contents and Evolving Law of Typical SF6 Decomposition Products
- 西安交通大学学报 2015年49卷第2期 页码：86-92+134
- 作者机构：
西安交通大学电力设备电气绝缘国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
DOI：10.7652/xjtuxb201502015
中图分类号： TM835.4-
网络首发：2015-02-10，
纸质出版：2015
- 稿件说明：
移动端阅览
钟理鹏 1, 汲胜昌 1, 李金宇 1, 等. 吸附剂对SF6典型分解产物含量及变化规律的影响[J]. 西安交通大学学报, 2015,49(2):86-92+134. DOI: 10.7652/xjtuxb201502015.
Effects of Adsorbent on Contents and Evolving Law of Typical SF6 Decomposition Products[J]. 2015, 49(2): 86-92+134. DOI: 10.7652/xjtuxb201502015.
吸附剂对SF6典型分解产物含量及变化规律的影响
摘要
选用了电力设备中常用的吸附剂KDHF-03分子筛
模拟研究了吸附剂对电力设备中SF
6
气体在局部放电下分解特性的影响
特别关注了SO
2
、SO
2
F
2
、S
2
OF
10
等几种典型分解产物添加吸附剂前后的产生规律。结果表明
添加吸附剂后
3种产物的含量均明显降低
SO
2
F
2
与S
2
OF
10
两种产物的吸附率(体积分数)分别达到79.92%和78.73%
SO
2
含量则始终低于气体分析系统的检测限度。此外
引入吸附剂之后
SO
2
F
2
与S
2
OF
10
的产生速率随着加压时间逐渐降低
其含量随时间延长逐渐饱和。最后
提出将φ(S
2
OF
10
)/φ(SO
2
F
2
)作为SF
6
类设备绝缘缺陷诊断判据
该比值在有、无吸附剂两种情况下表现出了很好的稳定性
添加吸附剂前后其值均稳定在1.5～2.0之间。
Abstract
KDHF-03 molecular sieve
a kind of adsorbent commonly used in electrical equipments
is chosen to investigate the effects of absorbents on SF
6
decomposition characteristics under partial discharge. The formation laws of several typical products
including SO
2
、SO
2
F
2
、S
2
OF
10
before and after adding adsorbents
are focused on. The results show that the contents of these three kinds of decomposition products obviously decrease after adding adsorbents
the adsorption rates
of SO
2
F
2
and S
2
OF
10
get 79.92% and 78.73% respectively
and the amount of SO
2
even falls below the detection limitation of gas analysis system. In addition
the productive rate of SO
2
F
2
and S
2
OF
10
decreases with the pressurization prolonging. Finally φ(S
2
OF
10
)/φ(SO
2
F
2
)
which remains within 1.5—2.0 before and after adding adsorbents
is suggested as diagnosis criterion for insulation defects in SF
6
gas-insulated electrical equipment.
关键词
Keywords
references
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