摘要
介绍了电力变压器短路试验的基本情况,概述了国内外三个标准中电力变压器短路试验方法的差异性,通过方法溯源和公式推导,提供了不同频率和温度等测试条件下折算短路电流的计算方法。此研究对电力变压器短路试验方法及准确计算具有一定的指导意义,且进一步保证了短路试验考核的公正性和准确性。
This paper introduces the current situation of power transformer temperature-rise test, and discusses the methodological differences in three standards, namely GB, IEC and ANSI, at home and abroad. Through traceability and formula derivation, the consistency of the final result of these three standard calculation methods has been verified. This study has great significance to power transformer temperature-rise test method, and further ensure the accuracy of the temperature-rise test results.
作者
何东升
苗本健
姚云涛
HE Dong-sheng MIAO Ben-jian YAO Yun-tao(China National Quality Supervision and Testing Center for Mid-low Voltage Transmission and Distribution Equipment, Dongguan 523325, China Yunnan Tongbian Apparatus Co. , Ltd, Tonghai 652700, China)
出处
《电气开关》
2017年第1期20-22,27,共4页
Electric Switchgear
基金
国家质量监督检验检疫总局科技计划项目(计划编号:2016QK026)
关键词
标准
变压器
短路试验
计算方法
绝缘
standard
transformer
temperature-rise test
calculation method
insulation
