高压电器2011，Vol.47Issue(8)：112-116,5.
220kV组合电子式互感器原理结构及挂网试验
Construction Principle and Application Test of 220 kV Combined Electronic Transformer
李洪涛 1张巍 1刘忠战2
作者信息
- 1. 河南新乡供电公司,新乡453002
- 2. 西安华伟光电技术有限公司,西安710019
- 折叠
摘要
Abstract
This paper introduces a combined electronic current and voltage transformer (ECVT). This transformer includes two core technologies, namely the self-excitation power supply technology and the equal potential cavum technology. The principle of voltage divider which based equal potential cavum structure and how to shield disturbance from outside electric field with balance of field and road so as to achieve precise voltage division in the electromagnetism silent environment are discussed emphasizely. It describes also how to combine two technologies and forming a new type of electronic combined transformers. The advantages of this transformer in applications and some testing records in a typical 220 kV substation are introduced as well. The practical operation conclusion indicates the combined ECVT works stably, two measurement systems are compatible, value of testing is correct, and this configuration is good for extend in applications.关键词
自励源/等势腔/组合电子式互感器Key words
self-excitation power supply/ equal potential cavum/ electronic combined transformers分类
信息技术与安全科学引用本文复制引用
李洪涛,张巍,刘忠战..220kV组合电子式互感器原理结构及挂网试验[J].高压电器,2011,47(8):112-116,5.
