This paper introduces theoretical basis and method of measuring transformerdifferential protection phase by transformerdifferential circulating current method.
介绍了用差压环流法测量变压器差动保护相位的理论依据及方法。
2
Digital transformerdifferential protection may falsely take effective when external single-phase earth fault occurs at star side or the line endures lightning strike on single phase.
数字式变压器差动保护在星形侧发生外部单相接地或线路单相遭雷击的情况下，差动保护有时会误动。
3
An integrated-circuit transformerdifferential relay including secondary and fifth harmonics suppressor is designed.