Standard Number: DL/T 5506-2015(DL/T5506-2015)
Chinese:电力系统继电保护设计技术规范
English:Technical specification for power system relay protection design
Effective Date:2015-12-01
Standard Applicability:This specification applies to the design of relay protection for power systems with voltage levels of 220kV and above, which mainly includes line protection, transformer protection, high-voltage shunt reactor protection, series capacitor compensation device protection, short lead and T-zone protection, busbar protection, circuit breaker failure protection, remote trip and over-voltage protection, reclosing, busbar (sectionalized) protection and auxiliary protection of circuit breakers, fault recorder, fault ranging, relay protection and fault information management sub-station.
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