电气工程学报 ›› 2020, Vol. 15 ›› Issue (4): 85-90.doi: 10.11985/2020.04.010

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电晕-热联合作用的油纸绝缘加速老化试验研究 *

庄金康(), 兰生(), 黄明亮()   

  1. 福州大学电气工程与自动化学院 福州 350108
  • 出版日期:2020-12-25 发布日期:2020-12-25
  • 作者简介:庄金康,男,1995年生,硕士研究生。主要研究方向为电器及其控制。E-mail: zjkfzu@163.com
    兰生,男,1971年生,博士,副教授。主要研究方向为高电压技术新应用。E-mail: lansheng71@163.com
    黄明亮,男,1992年生,硕士研究生。主要研究方向为高电压技术新应用。E-mail: 754028455@qq.com
  • 基金资助:
    * 福建省自然科学基金资助项目(2015J01194)

Experimental Study on Accelerated Aging of Oil-paper Insulation with Combined Effect of Corona and Heat

ZHUANG Jinkang(), LAN Sheng(), HUANG Mingliang()   

  1. College of Electrical Engineering and Automation, Fuzhou University, Fuzhou 350108
  • Online:2020-12-25 Published:2020-12-25

摘要:

为了研究油纸绝缘受到电晕-热联合应力作用下发生的老化问题,通过搭建电晕-热联合老化试验系统,进行了单应力热老化、电晕-热联合老化的双应力作用的对比试验,并对油纸绝缘的试验产物进行了测试试验分析。试验结果表明,两种老化都会加速油的分解和绝缘纸的老化,但是电晕-热联合老化使绝缘纸的老化速度更快,从而绝缘纸的聚合度下降更快并且糠醛含量的增加也更多。电晕放电热加速老化所产生的气体含量也多于单应力热老化。结果表明,电晕-热联合作用下,对绝缘纸的老化加速作用尤其明显,此研究为油纸绝缘加速老化试验方面提供一个新的研究方法,为实际油纸绝缘的电晕老化研究提供参考。

关键词: 油纸绝缘, 加速老化, 电晕-热联合, 产气特性

Abstract:

In order to study the aging problem of oil-paper insulation subjected to corona-heat combined stress, a comparative experiment of double stress action of single-stress thermal aging and corona discharge-heat combined aging is conducted by building a corona discharge-heat combined aging test system. And the test product of the oil-paper insulation experiment is analyzed. The experimental results show that both types of aging will accelerate the decomposition of oil and the aging of insulating paper, but the corona discharge-heat combined aging makes the aging of insulating paper faster, so that the degree of polymerization of insulating paper decreases faster and the increase of furfural content is much more. Corona discharge heat accelerated aging also produces more gas than single-stress thermal aging. The results show that under the combined effect of corona discharge and heat, the aging acceleration effect of insulation paper is particularly obvious. The research provides a new research method for the accelerated aging test of oil paper insulation, and provides a reference for the corona aging research of actual oil paper insulation.

Key words: Oil-paper insulation, accelerated aging, electric-thermal combination, gas production characteristics

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