基于逐次逼近法变压器变比测试技术的研究

摘要

In view of the shortcomings of current transformer ratio measurement methods used in production and in maintenance! such as low precision and poor stability. Analyzed the problems in different methods, and put forward a new method called successive approximation measurement approach based on the princeple of alternation current bridge method. The performance indexes of the tansformer ratio measurement instrument based on successive approximation approach can meet the requirement of the national standard, being of many advantages such as precise measurement, stable performance and simple operation.%针对目前变压器在生产过程中以及安装和检修后测试变比方法中存在的精度低、定性差不足,分析了常见测试方法存在的问题,提出了一种基于交流电桥法原理的逐次逼近法测试技术,用该技术研制的变压器变比测试仪,其性能指标全部满足国家标准要求,并具有测量准确、性能稳定、操作简便、安全可靠等优点,是当前最为理想的变压器变比测量方法.