一起变压器差动误动事例分析
Plant Maintenance Engineering(2018)
Abstract
通过一起变压器空投时差动保护误动事例,分析二次谐波制动原理没有正确闭锁差动保护的原因.对比目前系统中常用主变保护的谐波制动特点,针对涌流对差动保护的影响,探讨减少励磁涌流保护误动的防范措施.
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