ABB REF615C_E HCFEAEAGABC2BAA11E | Feeder Protection & Control Relay

1. Product Summary

The ABB REF615C_E HCFEAEAGABC2BAA11E is an advanced member of ABB’s 615 series, designed for feeder protection, control, monitoring, and measurement in medium-voltage distribution networks. Its compact design, extensive communication capabilities, and high configurability make it ideal for modern substations seeking reliable and digitalized protection.

2. Key Advantages

Comprehensive Feeder Protection Functions including overcurrent, earth-fault, voltage-based protection, and breaker failure protection

IEC 61850 Communications enabling seamless integration in intelligent substations

High Cybersecurity Compliance with secure user authentication and role-based access

Compact Flush-Mounted Design for easy panel installation

Advanced HMI Interface for local configuration and event review

Self-supervision and diagnostics ensuring continuous operational reliability

3. Internal Structure & Hardware Composition

The REF615C_E module incorporates:

High-speed DSP processors for fast protection algorithms

Modular I/O architecture tailored for feeder applications

Ruggedized power supply section with wide tolerance levels

Front-panel LCD + keypad for local engineering access

Internal memory for event logs, disturbance records, and sequences of events (SOE)

Galvanically isolated inputs/outputs to prevent noise intrusion

4. Technical Specifications

Rated voltage and current ranges suitable for medium-voltage feeders

Feeder, earth-fault, and backup protection packages included

IEC 61850, Modbus, and other standard protocols supported

High-resolution disturbance recording functionality

Programmable logic using ABB’s PCM600 environment

Conformal coating for enhanced resistance to moisture and dust

Wide operating temperature range ensuring reliability in harsh substation conditions

5. Applications

The REF615C_E HCFEAEAGABC2BAA11E is widely used across:

Primary and secondary distribution substations

Industrial power distribution systems

Utility feeder automation programs

Smart grid modernization projects

Protection retrofitting in upgrade or maintenance campaigns

Its reliability and communication flexibility make it suitable for both standalone configurations and integrated digital substation architectures.

6. Installation & Commissioning

Mounting: Insert the relay into the panel cut-out and secure using front mounting screws.

Wiring: Connect CTs, VTs, control power, binary I/O, and communication ports according to ABB wiring diagrams.

Configuration: Use PCM600 to load settings, logic schemes, communication parameters, and protection curves.

Testing: Perform secondary injection tests to validate protection behavior before energizing the feeder.

Final Integration: Establish communication with the SCADA or substation automation system via IEC 61850 or chosen protocol.

7. Maintenance Recommendations

Periodically download disturbance records for system analysis

Clean ventilation openings to maintain proper thermal performance

Verify firmware versions and apply ABB-recommended updates

Inspect wiring tightness annually to prevent intermittent signal issues

Review event logs for early detection of abnormal system conditions

8. Additional Notes

The versatility of this REF615C_E model allows it to serve as a direct replacement within existing ABB 615-series installations. Its enhanced processing, advanced protection algorithms, and robust cybersecurity features make it a preferred device for modern, digital feeder protection schemes.