The paper presents selectivity coordination of levels and sorts protection in low voltage distribution system.
系统阐述了低压配电系统中各级各类保护之间的选择性配合。
The paper adopts the fractal theory to judge the fault types and then USES the microcomputer logic judgement to realize selectivity of protection.
利用分形理论判断故障类型，再利用微机逻辑判断实现保护的选择性。
Its application can improve the selectivity and sensitivity of power supply and distribution line protection.
其应用可提高供配电线路保护的选择性、灵敏性与供配电线路运行的可靠性、安全性。
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