...
首页> 外文期刊>Baustoffmarkt >PROTECTION, CONTROL AND AUTOMATION FOR A MULTISTATION LOOPED DISTRIBUTION SYSTEM - PART Ⅱ
【24h】

PROTECTION, CONTROL AND AUTOMATION FOR A MULTISTATION LOOPED DISTRIBUTION SYSTEM - PART Ⅱ

机译:多级分布式配电系统的保护,控制和自动化-第二部分

获取原文
获取原文并翻译 | 示例
           

摘要

Breaker 16 is responding in kind, and both receive the GOOSE permissive to trip and isolate the fault. The entire process takes about 11 cycles with a 1-cycle delay on the definite overcurrent element, less than 5 cycles for GOOSE messaging, and 5 cycles for the breakers to open. Breaker 8 is undergoing the same crisis as breaker 4, but both backup 51S 1T elements drop out before timing out. That all worked well enough, but what if one breaker is already open? GOOSE messaging also lets breaker 15 know if breakers 16 and 17 are open or closed, and an open state is used as a permissive to trip breaker 15 for a reverse fault condition. Since the loops are relatively small, an added layer of protection is provided by backup definite time-over-current settings enabled for a reverse fault condition that persists beyond 30 cycles. These elements are coordinated with the backup time-overcurrent settings in the loop supply breakers to allow a remote breaker to operate before a bus breaker.
机译:断路器16正在响应,并且都接受允许脱扣和隔离故障的GOOSE。整个过程大约需要11个周期,在确定的过电流元件上有1个周期的延迟,GOOSE消息传递少于5个周期,断路器断开则有5个周期。断路器8遭受与断路器4相同的危机,但是两个备用51S 1T元素在超时之前均已退出。一切都足够好,但是如果一个断路器已经打开怎么办? GOOSE消息还可以使断路器15知道断路器16和17是断开还是闭合,并且在发生反向故障时,断开状态被用作允许断路器15跳闸。由于回路相对较小,备用备份确定电流过电流设置可提供额外的保护层,该设置可用于持续超过30个周期的反向故障情况。这些元素与回路断路器中的后备时间过电流设置相协调,以使远程断路器可以在总线断路器之前运行。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号