The current configuration state for main transformer of south electric network and several problems met in practical project were introduced. Some of special problems of main transformer protection were analyzed and discussed.

• 介绍了河北省南部电网主变压器保护的配置现状及在实际工程中遇到的微机主变保护在配置与组屏上存在的问题 ,并对主变保护中的几个特殊问题进行了分析与探讨