On the basis of considering environmental protection, resources comprehensive utilization and industrial policies, the methodof using tailing sand to produce air-entraining concrete was put forward.
A comprehensive assessment method for relay protection condition is proposed on the basis of three elements: state diagnosis, risk assessment, apparatus patrol and operation management information.
提出了基于状态诊断信息、风险评估、设备巡视与运行管理信息三方面要素的继电保护状态综合评估方法。
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This paper presents a comprehensivemethod based on different conditions after disturbance to avoid the problems caused by the traditional prediction for out- of- step protection.