Key Benefits

The F35, a member of the UR family of protection relays, is a digital relay that provides feeder protection and power metering for up to 5 feeders with busbar voltage measurement or 6 feeders without busbar voltage in one integrated package. It may be used as a stand alone device or as a component of an automated substation control system.

• Cost effective and small footprint | Integrated protection control, monitoring, and communications for up to 6 feeders
• Dependable | Performance backed up by many years of field experience
• Flexible access to information | Multiple communication options and protocols
• Breaker monitoring | Monitor breaker conditioning through analog I/O, rich metering, breaking arcing current, and trip counters
• Use high speed communications to reduce wiring and installation costs | Exchange inputs and outputs between relays to achieve relay-to-relay interaction
• Reduce installation space requirements through compact design | Multifunction device that integrates protection and control functions, programmable pushbuttons and status LEDS, and communication interfaces
• Maintenance cost savings and simplification | Modular construction, common hardware, reduced stock of spare parts, plug & play modules
• Application flexibility | Multiple I/O options, programmable logic (FlexLogic™), modularity, customize to specific requirements
• Reduce system event analyzing time and cost | Sequence of event reports, oscillography, datalogging, IRIG-B time synchronization
• Embedded IEC 61850 Protocol | No external protocol converter required