【摘要】 本文所述的不完全纵差保护将传统纵差保护的中性点侧电流改为相电流的一部分。当发电机内部定子绕组发生各种相间、匝间短路和分支开焊故障时，由于故障分支与非故障分支间存在互感，该保护均能反映，因而扩大了传统纵联保护的功能，且简化了大型发电机组继电保护配置的总体方案。更多还原

【Abstract】 In the incomplete longitudinal differential protection described in this paper, it substitutes the current on neutral side by a part of phase current, when various inter phase, interturn short circuits or winding breakage faults occured in generator stator, this protection can be actuated due to mutual inductance existing between faulted and unfaulted branches, therefore it extends protection functions over tradition ones, and simplifies protection scheme.更多还原