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New Method for OC Relay Coordination

机译:OC继电器协调的新方法

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Protection relays design and manufacture have arrived to a new level of advancement; hence, numerical relays have appeared recently. They combine all the functions of monitoring, control, and protection in one device. Also these relays have the ability to communicate with each other to share statuses and orders using GOOSE (generic object-oriented substation events) messages based on communication protocols such as IEC61850. In this paper, a proposed method for overcurrent (OC) relay coordination has been introduced based on numerical relay features of several setting groups and communication capability. This work supposes that the coordination between feeder, bus section, and incomer protection relays, in a substation of single busbar configuration with bus sectionalizer (i.e., bus section), depends on the status of the bus section circuit breaker (CB) as a criterion for determining active relay setting group, to achieve a faster tripping action. ETAP has been used as a simulation software environment. And the simulation results show the advantages of the proposed method in reducing the time needed by the relay to clear the electrical fault. Siemens SIPROTEC series have been used as an example of numerical relays, specifically 7SJ64 as OC relay, which exists in the ETAP library.
机译:保护继电器设计和制造已到达新的进步水平;因此,最近出现了数值继电器。它们结合了一个设备中监控,控制和保护的所有功能。这些继电器还具有彼此通信的能力,以利用基于IEC61850等通信协议的鹅(通用面向对象的变电站事件)消息来共享状态和订单。在本文中,基于多个设置组和通信能力的数值中继特征引入了一种用于过电流(OC)中继协调的方法。这项工作假设使用总线分割器(即总线部分)的单个母线配置的变电站的进料器,总线和排除保护继电器之间的协调取决于总线断路器(CB)作为标准的状态用于确定活动中继设置组,以实现更快的跳闸动作。 ETAP已被用作仿真软件环境。并且仿真结果表明了提出的方法在减少继电器所需时间以清除电气故障的优点。 Siemens Siprotec系列已被用作数值继电器的示例,特别是7SJ64作为OC继电器,其存在于ETAP库中。

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