【摘要】 介绍了河北南网距离保护整定计算的现状,列出了目前在相间距离保护整定中灵敏性与选择性不能兼顾的几种情况,并阐述了电网对相间距离保护Ⅲ段的特殊要求,提出相间距离保护整定可在保证灵敏度的前提下简化配合关系。更多还原

【Abstract】 This paper introduces the status quo of distance protection setting calculation in Hebei south grid,enumerates several problems that sensitivity and selectivity can’t be compatible,and expounds special requires for step Ⅲ inter-phase distance protection in electric system.And finally,suggests that setting calculation in distance protection could be simplified cooperation at premise of ensuring sensitivity.更多还原