Advanced Feeder Protection for Reliable Power Distribution
The ABB REF615C_D Feeder Protection and Control Relay is a compact and intelligent electronic device (IED) designed to provide dependable protection, control, and monitoring for medium-voltage feeder systems. As part of ABB’s Relion® 615 series, it integrates multiple protection and automation functions into a single efficient platform, making it suitable for modern utility and industrial power networks.
Built for flexibility and ease of integration, the REF615C_D supports a wide range of feeder configurations and is widely used in both traditional substations and digitally enabled smart grid environments. It is engineered to enhance system visibility, improve fault response, and ensure stable power delivery.
Technical Specifications
| Parameter | Details |
|---|
| Model | REF615C_D |
| Product Type | Feeder Protection & Control Relay |
| Series | ABB Relion® 615 |
| Protection Functions | Overcurrent, short-circuit, earth fault, thermal overload |
| Control Functions | Circuit breaker control, feeder supervision |
| Measurement Functions | Current, voltage, power, energy, frequency |
| Communication Protocols | IEC 61850, Modbus, DNP3, IEC 60870-5-103 |
| Event Recording | Time-stamped event and fault recording |
| Display | Graphical LCD interface |
| Mounting Type | Panel-mounted / withdrawable design |
| Operating Temperature | Industrial-grade operating range |
| Dimensions (H × W × D) | Approx. 177 × 177 × 201 mm |
| Weight | Approx. 4.1 kg |
| Installation | Modular plug-in construction |
Application Areas
The REF615C_D is designed for versatile deployment across multiple power system environments:
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Medium-voltage feeder protection in utility substations
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Industrial distribution networks with continuous load demand
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Radial, looped, and meshed feeder systems
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Renewable energy integration (solar and wind plants)
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Substation automation and digital monitoring systems
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Critical infrastructure requiring high operational reliability
Its flexible architecture allows it to be used in both new installations and modernization projects.
Key Advantages
The REF615C_D delivers a strong combination of protection accuracy, operational efficiency, and system integration capability. Its fast and selective fault detection helps minimize downtime and reduce stress on electrical equipment.
The modular withdrawable design simplifies installation and maintenance, improving lifecycle efficiency. Its multi-protocol communication capability enables seamless integration into SCADA and digital substation systems, supporting long-term scalability and smart grid development.
Additionally, its integrated monitoring and event recording functions provide valuable system diagnostics, improving decision-making and maintenance planning.
Technical FAQs
1. What is the main purpose of REF615C_D?
It is used for protection and control of medium-voltage feeder systems.
2. What systems is it compatible with?
It supports utility substations and industrial power distribution networks.
3. What communication protocols are available?
IEC 61850, Modbus, DNP3, and IEC 60870-5-103.
4. Does it support feeder monitoring?
Yes, it includes measurement and real-time monitoring functions.
5. Can it be used in smart grids?
Yes, it is suitable for digital and smart grid environments.
6. What feeder configurations are supported?
Radial, looped, and meshed network configurations.
7. Is the device easy to maintain?
Yes, it uses a modular plug-in design for simplified servicing.
8. Does it support breaker control?
Yes, integrated circuit breaker control is included.
9. Is it suitable for industrial environments?
Yes, it is designed for demanding industrial conditions.
10. What makes it part of the REF615 family?
It belongs to ABB’s Relion 615 platform, designed for scalable feeder protection and control.
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