REF615 ANSI is a dedicated feeder relay perfectly aligned for the protection, control, measurement and supervision of utility and industrial substation feeders requiring ANSI/IEEE standards and ring-lug terminals in grounded and ungrounded distribution systems. Five standard configurations are available from cost-effective current-only configurations to more comprehensive current-voltage configurations with directional overcurrent, voltage and frequency protection, synchronism check, power and energy measurements and fault location. Most configurations include Load Profile standard and offer Power Quality and reclosing as option.
The REF615 also offers an optional cable fault detection (CFD) feature for real-time detection and notification of short duration, high current feeder faults where the substation breaker does not operate. Knowledge of fuse-operated outages before first customer call and of incipient underground (insulation) and overhead (vegetation) faults without outage is possible with CFD.
REF615 is a member of ABB’s Relion® product family and its 615 series. The 615 series has been designed to unleash the full potential of the IEC61850 standard for communication and interoperability of substation devices including fast, horizontal relay-to-relay (GOOSE) communications for cost-effective, reliable and high-speed control schemes.