文档介绍：北京德威特电力系统自动化有限公司系统硬件系列DVP–671/672微机PT监控装置(VV接线)-671/..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................(直流操作)............................................................(交流操作)...................................................................................................................................................................................................................................................................................:...........................................................................................:.............................................................................:.............................................................:.....................................................(适用于定点显示和进入定值区的显示):........:...........................................................................................(供运行人员使用)......................