继电器2001，Vol.29Issue(1)：16-18,3.
变压器和电流保护的性能分析
Analysis on the characteristics of sum current protection for transformer
摘要
Abstract
To solve the problems on sensitivity of phase to phase backup protection on transformer’s power supply side, especially the problems on the backup protection on the conditions of a current limit reactor applied on the LV side, a sum current protection formed by CT on HV and MV sides on transformer is proposed. Its principle, construction and setting way are different from the traditional overcurrent protections. In the author’s view, the sum current protection would improve the sensitivity considerably and should make it be a standard arrangement. Its CT should be delta wired realized by microprocessor based device. Its setting should be done based on single transformer operation.关键词
变压器保护/和电流/定值/微机保护分类
信息技术与安全科学引用本文复制引用
常凤然,张洪,周纪录,赵春雷..变压器和电流保护的性能分析[J].继电器,2001,29(1):16-18,3.
