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Protection system reliability and protection operation reliability
Author(s): 
Pages: 1-4,9
Year: Issue:  15
Journal: RELAY

Keyword:  继电保护系统可靠性动作可靠性;
Abstract: 基于继电保护的工作特点,将其可靠性分为保护系统可靠性和保护动作可靠性两个方面.提出保护系统可靠性指标:保护拒动失效率和保护误动失效率;保护动作可靠性指标:保护拒动频率和保护误动频率.建立数字保护系统软/硬件失效率模型,求解保护系统可靠性指标;建立保护动作的状态空间模型,求解保护动作可靠性指标.该方法适用于各种保护的可靠性综合测评和定量管理,也是开展保护科学检修工作的基础.
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