摘要
通过分析互感器比、角差测量方法，提出并实现了一种基于精密90°锁相移相电路的新型智能化互感器校验仪自动化测量方案。
By analyzing sampling method of transformer errors, a newly developed intelliGent transformer calibrator is presented. An orthogonal decomposation circuit based on 90℃Phase-shift with phase-locked loop is realized. The calibrator can measure the ratio error f and phase displacement of both currnt and voltage transformer auo=tomatically.
出处
《武汉测绘科技大学学报》
CSCD
1999年第1期86-89,共4页
Geomatics and Information Science of Wuhan University
关键词
互感器校验仪
比差
角差
智能化
锁相环
transformer calibrator
ratio error
phase displacement
intelligence
phaselocked loop
