油浸式电流互感器绝缘热稳定试验技术探讨  

Discussion on Insulation Thermal Stability Test Techniques of Oil-immersed Current Transformer

作　　者：申萌[1] 王露[1] 刘宸[1] 钟磊[1] 党原[1] 陆建挺[1] 张益民[1] SHEN Meng;WANG Lu;LIU Chen;ZHONG Lei;DANG Yuan;LU Jianting;ZHANG Yimin(Xi’an High Voltage Apparatus Research Institute,Xi’an 710077,China)

机构地区：[1]西安高压电器研究院有限责任公司,西安710077

出　　处：《电力电容器与无功补偿》2018年第5期64-69,共6页Power Capacitor & Reactive Power Compensation

摘　　要：本文在介绍GB/T 20840.2—2014标准中关于绝缘热稳定试验技术要求的基础上,以设备最高电压300 kV油浸式电流互感器为试品开展绝缘热稳定试验技术研究,介绍了绝缘热稳定试验的两种试验回路,即直接法试验回路和间接法试验回路,分析了电压、额定连续热电流以及其作用时间和油浸式电流互感器温度、介质损耗因数和电容量的关系。In this paper,the study of insulation thermal stability test techniques with 300 kV(maximum voltage of the equipment)oil-immersed current transformer prototype is developed on the basis of insulation thermal stability test techniques in GB/T 20840.2-2014 standard and,such two test circuits for insulation thermal stability test as direct and indirect test methods are introduced.And the relations among voltage,rated continuous thermal current,its action time and temperature,dielectric dissipation factor and capacitance of oil immersed current transformer is analyzed.

关 键 词：油浸式电流互感器 绝缘热稳定试验 标准 试验回路 介质损耗因数 电容量 

分 类 号：TM452[电气工程—电器]