摘要
通过实例计算证明并不是所有并列运行的双回线路都适于装设横联差动及和相电流延时速断保护装置;结合现场实际分析横联差动及和相电流延时速断保护装置在重负荷长线路双回线应用时无法正常投入原因。
Concrete example calculation shows that not all parallel interlock differential and phase current delay trip protection are suitable for application in all parallel dual loop lines.The reason for abnormal service of these protection systems are analyzed in the light of reality.
出处
《黑龙江电力》
CAS
2004年第4期275-276,286,共3页
Heilongjiang Electric Power
关键词
线路保护
横联差动
和相电流保护
并列运行
定值计算
Line protection
parallel interlock differential
and phase current protection
parallel operation
set-value calculation