Transformers are important equipments in Substation, when accident fault inflict damage, it will generation direct economic loss, simultaneously, power supply affected area will be large range, so we need dependable protective relay and complete protective relay equipment; simultaneously avoid malfunction is very important. So text explores and analysis Transformer differential protection malfunctions in several aspects.%电力变压器是发电厂和变电站的主要电气设备,一旦发生故障遭到损坏,就要造成很大的经济损失,同时对地区的供电造成影响,因此一定要有完善可靠的继电保护装置来确保护其正常的工作;同时防止任何情况下的误动也是一项十分重要的工作,本文将从几个面来探讨变压器差动保护的误动原因以及防止措施。
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