Discussion about the Selection of ATSE from the System Reliability

 

Guo Fengwen（Nanjing Municipal Engineering Design and Research Institute Co.，Ltd.，Nanjing 2 1 0 0 0 8，China）

 

Abstract The possibility of the faults occurrence on the lower end must be considered for the design and selection of AT SE；thereby，the reliability of ATSE on PC level and CB level are separately analyzed；it is emphasized that the selection of AT SE on PC level or CB level mainly depends upon the requirement of the system reliability；meanwhile，the improving measures and suggestions for the selection of AT SE are put forward.

Key words AT SE PC level CB level Stand-by supply automatic transfer switch

 

摘 要 AT SE的设计和选用，必须考虑其下端发生故障的可能性；据此，对PC级和CB级AT SE的可靠性分别作了分析；重点说明了选择PC级还是CB级主要取决于系统可靠性的要求；同时提出了选用AT SE的改进措施和建议。

关键词 AT SE PC级 CB级 备自投