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OPTIMIZED PROTECTION COORDINATION OF ELECTRONIC-TRIP CIRCUIT BREAKER BY SHORT CIRCUIT CURRENT AVAILABILITY MONITORING

机译:通过短路电流电流可用性监测来优化电子三路断路器的保护配合

摘要

Centralized coordination of setting and adjusting trip settings of electronic circuit breakers (104, 106, 108) in an electrical distribution system (100) by monitoring short circuit current availability (SCCA) and adjusting trip settings based on received SCCA estimates from SCCA monitoring devices (102) installed at main (A), feeder (B), and branch nodes of the distribution system (100). The SCCA monitoring devices (102) are capable of automatically estimating the SCCA in the circuit or node at which the SCCA device is installed and transmitting SCCA estimates to a controller, which uses the SCCA estimates to coordinate adjustments to trip settings for the various circuit breakers (104, 106, 108). Depending on the node position of the circuit breaker (104, 106, 108) and the corresponding SCCA at that node, the controller adjusts in real-time the short-circuit trip settings for the circuit breakers (104, 106, 108) so that they are below the SCCA value. Optional userinputted settings can affect the trip setting adjustments, such as transient loading conditions that can influence the SCCA estimates.
机译:通过监视短路电流可用性(SCCA)并基于从SCCA监视设备接收到的SCCA估计值来调整跳闸设置,以集中协调配电系统(100)中电子断路器(104、106、108)的设置和调整跳闸设置( 102)安装在配电系统(100)的主节点(A),馈线(B)和分支节点上。 SCCA监视设备(102)能够自动估算安装了SCCA设备的电路或节点中的SCCA,并将SCCA估算值传输到控制器,该控制器使用SCCA估算值来调整各种断路器的跳闸设置调整(104、106、108)。根据断路器(104、106、108)的节点位置和该节点上的相应SCCA,控制器实时调整断路器(104、106、108)的短路跳闸设置,以便它们低于SCCA值。用户输入的可选设置可能会影响跳闸设置的调整,例如可能影响SCCA估算的瞬时负载条件。

著录项

  • 公开/公告号CA2845769C

    专利类型

  • 公开/公告日2019-01-08

    原文格式PDF

  • 申请/专利权人 SCHNEIDER ELECTRIC USA INC.;

    申请/专利号CA20122845769

  • 发明设计人 SMITH TIMOTHY LEE;

    申请日2012-08-23

  • 分类号H02H3;

  • 国家 CA

  • 入库时间 2022-08-21 11:59:07

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