Influence of Electric-thermal Aging on BOPP Film Morphology and Breakdown Performance

CHENG Lu; QI Lejun; YAO Cheng; LI Huaiyu; WANG Yuchen

doi:10.14044/j.1674-1757.pcrpc.2015.06.015

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Influence of Electric-thermal Aging on BOPP Film Morphology and Breakdown Performance

更新时间：2024-09-14

- Influence of Electric-thermal Aging on BOPP Film Morphology and Breakdown Performance
- POWER CAPACITOR & REACTIVE POWER COMPENSATION Vol. 36, Issue 6, Pages: 69-72(2015)
- 作者机构：
  
  1. 西安ABB电力电容器有限公司技术中心
  2. ABB中国研究院
  3. 东北大学材料与冶金学院
- 作者简介：
- 基金信息：
- DOI：10.14044/j.1674-1757.pcrpc.2015.06.015
  CLC： TM53
- Published：2015，
- 稿件说明：
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[1]程璐,漆乐俊,姚成,李怀玉,王宇晨.电热老化对聚丙烯薄膜形态及击穿特性的影响[J].电力电容器与无功补偿,2015,36(06):69-72.

CHENG LU, QI LEJUN, YAO CHENG, et al. Influence of Electric-thermal Aging on BOPP Film Morphology and Breakdown Performance. [J]. Power capacitor & reactive power compensation, 2015, 36(6): 69-72.
[1]程璐,漆乐俊,姚成,李怀玉,王宇晨.电热老化对聚丙烯薄膜形态及击穿特性的影响[J].电力电容器与无功补偿,2015,36(06):69-72. DOI： 10.14044/j.1674-1757.pcrpc.2015.06.015.

CHENG LU, QI LEJUN, YAO CHENG, et al. Influence of Electric-thermal Aging on BOPP Film Morphology and Breakdown Performance. [J]. Power capacitor & reactive power compensation, 2015, 36(6): 69-72. DOI： 10.14044/j.1674-1757.pcrpc.2015.06.015.

摘要

选取了通过GB/T 11024.2—2001规定的1 000 h老化试验的电容器单元

以及相同设计的新下线未服役电容器单元

对2台电容器单元中的聚丙烯薄膜分别进行了差示扫描量热法分析（DSC）、傅里叶红外光谱分析（FTIR）、凝胶渗透色谱法（GPC）检测以及小面积电极击穿试验

通过结果的对比分析得出了该条件下的老化对聚丙烯薄膜内部形态以及击穿特性的影响。结果表明

聚丙烯膜的结晶度在老化后会有略微的降低

整个老化过程不会有明显的其他物质产生或分子链大规模断裂

薄膜的击穿场强降低

而击穿性能的退化主要体现在击穿场强在老化前就较低的部分。

Abstract

Two power capacitors

one passed 1 000 hours aging test according to GB/T 11024.2-2001 and another fresh capacitor unit of same design have been studied in this paper

to analyze the aging influence on the BOPP film morphology and breakdown performance

through the tests of differential scanning calorimetry（DSC）

fourier transform infrared spectroscopy（FTIR）

gel permeation chromatography（GPC）

and small electrode breakdown test. It can be concluded from results that the aging process will cause a small decrease of crystallinity

but there’re no obvious scissions of large molecular chains

or substance produced in the aging process. The breakdown test results show that the aging will cause dielectric strength degradation

especially the original weak area.

关键词

电容器聚丙烯薄膜老化威布尔分布

Keywords

power capacitorpolypropylene filmagingweibull distribution

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