【摘要】 从原理上分别对线路距离保护、方向保护、分相电流差动保护在同塔并架四回线中的保护特性进行了适应性分析,并对同塔并架四回线中的保护选相进行了阐述,据此提出了适应于同塔并架四回线的线路主保护及后备保护配置方案。更多还原

【Abstract】 An analysis on protection feature adaptation to four-circuit transmission lines on a same tower is discussed, with respect to line distance protection, directional protection and segregated phase current differential protection in principle respectively. In addition, the effect on phase selector of line protection under this condition is also analyzed. The configuration scheme for line main protection and backup protection suitable for four-circuit transmission lines on a same tower is proposed.更多还原