5-134 D60 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUALSYSTEM SETUP CHAPTER 5: SETTINGS5Figure 5-61: Dual breaker control logic (Sheet 2 of 2)The breaker element has direct hard-coded connections to the IEC 61850 model as shown in the logic diagram. This allowsremote open/close operation of each breaker, using either CSWI or XCBR IEC 61850 logical nodes. IEC 61850 select-before-operate functionality, local/remote switch functionality, along with blocking of open/close commands are provided. Notethat the dwell time for the IEC 61850 trip and close commands shown is one protection pass only. To maintain the close/open command for a certain time, do so on the contact outputs using the "Seal-in" setting, in the Trip Output element, or inFlexLogic.
