REC670  Bay control REC670 1MRK511313-BEN

The auto-reclose for single-, two-, and/or three-phase reclose includes priority circuits for multi-breaker arrangements. It cooperates with the synchrocheck function with high-speed or delayed reclosing. Several breaker failure functions are available to provide a breaker failure function independent from the protection IEDs, also for a complete one- and a half breaker diameter.
Disturbance recording and fault locator are available to allow independent post-fault analysis after primary disturbances in case of a failure in the protection system.
Duplex communication channels for transfer of up to 192 intertrip and binary signals are available on each remote-end data communication card (LDCM). Typical applications are the communication between 670–series IEDs inside the station or with 670–series in a remote station as remote I/O.
REC670 can be used in applications with the IEC 61850-9-2LE process bus with up to six Merging Units (MU).
Logic is prepared with a graphical tool. The advanced logic capability allows special applications such as automatic opening of disconnectors in multi-breaker arrangements, closing of breaker rings, load transfer logics and so on. The graphical configuration tool ensures simple and fast testing and commissioning.

Four packages have been defined for following applications:
• Single breaker (double or single bus) arrangement (A30)
• Bus coupler for double busbar (A31)
• Double breaker arrangement (B30)
• 1 ½ breaker arrangement for a complete diameter (C30)
Optional functions are available in PCM600 Application Configuration Tool and can be configured by the user. Interface to analog and binary IO:s are configurable without need of configuration changes. Analog and control circuits have been pre-defined. Other signals need to be applied as required for each application. The main differences between the packages above are the interlocking modules and the number of apparatuses to control.

REC670