The DDFR is a Digital Fault and Disturbance recording system that uses communications to retrieve Fault, Disturbance, and Sequence of Event records that are captured by the protection relays distributed throughout a substation. The DDFR internally stores this critical substation information for local station troubleshooting as well as archives this data in a remote enterprise network location for permanent storage and analysis.
- Substation Distributed Digital Fault Recording
- Component in a larger enterprise wide fault and disturbance recording system
- Provides a permanent detailed record of all substation activity at a fraction of the cost of installing traditional Digital Fault Recorders (DFR)
- Eliminates up to one-third of substation wiring needed for protection, metering and disturbance recording
- Allows for recording of Transfer Trip Signals, Block Signals and other inter-substation messages that are sent via IEC61850 peer-to-peer messages and not recordable by traditional DFR's
- Permits recording of internal protection relay operands and calculations in Sequence of Events (SOE) and Fault records
- Meets requirements of international Fault Recording standards when used with GE Multilin's Universal Relay family including NERC, IEEE, ECAR, & NPCC
- Provides secure data collection while also isolating the IED network and the IT or Control network from each other with use of two seperate Ethernet ports.
- Allows users to define the poll rate for Events and Waveforms