Product Core Brief
- Model: REU615 HBUAEAADNDA6BNN11G
- Brand: ABB
- Series: Relion® 615
- Core Function: Voltage protection, frequency protection, and control
- Type: Numerical voltage protection and control relay / IED
- Key Features: IEC 61850 support; load shedding; voltage regulation; disturbance recording
- Typical Applications: Utility substations, industrial power systems, busbar supervision, transformer voltage regulation
- Condition: New Original (New Surplus) / Tested Used Available
REU615 is designed for voltage and frequency-based protection schemes in utility and industrial power distribution systems, including distributed power generation networks.
Product Introduction
ABB REU615 HBUAEAADNDA6BNN11G is a compact voltage protection and control IED developed for utility substations, industrial power systems, renewable energy networks, and transformer voltage regulation applications requiring dependable protection and advanced communication integration.
As part of ABB’s Relion® 615 series, the relay combines voltage protection, frequency supervision, control logic, disturbance recording, and substation communication into a withdrawable relay platform suitable for both new installations and retrofit projects. The 615 series was designed around IEC 61850 interoperability, enabling easier integration into digital substations and SCADA systems.
REU615 supports both voltage/frequency-based protection schemes and automatic voltage regulation for transformers equipped with motor-driven on-load tap changers, depending on the selected configuration. Compared with earlier ABB 610-series relays, the REU615 platform adds IEC 61850 Edition 2 support, process bus capability, configurable logic, advanced disturbance recording, and improved HMI functionality.
Key Selling Points & Differentiators
- ABB REU615 HBUAEAADNDA6BNN11G integrates overvoltage, undervoltage, frequency protection, synchronism check, load shedding, and control functions in one compact IED platform.
- Supports IEC 61850 Edition 2, GOOSE messaging, Modbus, DNP3, and IEC 60870-5-103 communication protocols for modern digital substations.
- Withdrawable plug-in relay construction simplifies installation, testing, and maintenance in switchgear panels.
- Supports automatic voltage regulation for transformers with motor-driven on-load tap changers in dedicated configurations.
- Built-in disturbance recorder, SOE logging, and condition monitoring improve post-fault diagnostics and maintenance analysis.
- Optional arc protection and RTD/mA input capability increase application flexibility for industrial systems.
- Compact 615-series architecture reduces engineering complexity during retrofit and modernization projects.
- Incoming stock should pass startup diagnostics, communication verification, binary I/O simulation, and minimum 24-hour powered runtime before shipment.
