开关设备快速温升试验方法研究  

Research on Fast Temperature Rise Test Method of Switchgear

作　　者：戴建卓 贾勇勇 张思聪 赵恒 宋思齐 储昭杰 DAI Jianzhuo;JIA Yongyong;ZHANG Sicong;ZHAO Heng;SONG Siqi;CHU Zhaojie(State Grid Jiangsu Electric Power Co.,Ltd.Research Institute,Nanjing 211103,China)

机构地区：[1]国网江苏省电力有限公司电力科学研究院,江苏南京211103

出　　处：《电器与能效管理技术》2022年第3期81-85,89,共6页Electrical & Energy Management Technology

基　　金：江苏省电力试验研究院有限公司科技项目(DSY202007)。

摘　　要：针对目前开关设备温升试验方法效率低的问题,通过分析电流幅值和频率与开关设备温升的关系,提出开关设备快速温升试验方法。首先通过对历史试验样本进行统计分析,得到对应开关设备的快速温升限值。接着,对开关设备施加大于额定幅值、频率的试验电流,直至温升达到快速温升限值。最后,将试验电流恢复至额定值,直至温升达到稳定值。试验结果表明,同时增大电流幅值和频率,可缩短开关设备温升试验时间达21.31%,所提快速温升试验方法能够可靠提高开关设备的温升试验效率。Aiming at the low efficiency of the current temperature rise test methods for switchgear,the fast temperature rise test method is proposed through analyzing the relationship between the current amplitude and frequency and the temperature rise of the switchgear.Firstly,the rapid temperature rise limit of the corresponding switchgear is obtained through the statistical analysis of the historical test samples.Secondly,the test currents whose amplitude and frequency are over the rated value are imposed to the switchgear until the temperature rise reach the limited value.Lastly,the test current is restored to the rated value until the temperature rise reaches the stable value.The test results show that increasing current amplitude and frequency simultaneously can reduce the temperature rise test time of switchgear by 21.31%.The proposed fast temperature rise test method can reliably improve the temperature rise test efficiency of switchgear.

关 键 词：开关设备 电流幅值 电流频率 温升试验 

分 类 号：TM564[电气工程—电器]