ABB REF615E-G Feeder Protection and Control Relay

Description

ABB REF615E-G Feeder Protection and Control Relay

The ABB REF615 is a dedicated feeder protection and control relay designed for the protection, control, measurement, and supervision of utility and industrial power distribution systems. The “E” configuration specifically denotes its application for feeder protection with high-impedance busbar protection or motor protection (depending on the specific version code), while “G” typically refers to the hardware generation or specific regional localized variants.

1. Product Detailed Description

The REF615 is part of the Relion® 615 series. It is characterized by its compact, plug-in design which facilitates easy installation and testing. It supports the IEC 61850 standard for communication and interoperability in substations, including GOOSE messaging for high-speed horizontal communication.

2. Key Product Parameters

3. Product Advantages

• Modular Design: The plug-in unit allows for quick replacement without disconnecting the wires, minimizing downtime.

• High Performance: Provides extensive protection functions including overcurrent, earth-fault, and thermal overload.

• Advanced Connectivity: Native support for IEC 61850 Edition 1 and 2, allowing for seamless integration into smart grids.

• Large HMI: Features a clear Liquid Crystal Display (LCD) that provides single-line diagrams, measurements, and alarm indications.

• Self-Supervision: Continuous monitoring of internal hardware and software health ensures high reliability.

4. Product Applications

The REF615E-G is versatile and used across various sectors:

• Utility Distribution: Protection of incoming and outgoing feeders in distribution substations.

• Industrial Plants: Power management for manufacturing facilities, ensuring process continuity.

• Renewable Energy: Protection of feeders in wind farms and solar power plants.

• Infrastructure: Used in airports, railways, and large commercial buildings to maintain power stability.

5. Important Considerations & Precautions

• Wiring Accuracy: Ensure that the Current Transformer (CT) and Voltage Transformer (VT) polarities are correct to avoid false tripping.

• Environmental Protection: While the front is IP54, the rear should be housed in a clean, dry cabinet to prevent dust accumulation on the terminals.

• Firmware Updates: Always ensure the relay is running the latest manufacturer-verified firmware to patch security vulnerabilities and bugs.

• Cybersecurity: Change the default passwords immediately upon commissioning to secure the communication interface.

6. Protection Functions (Example for “E” Configuration)

• Directional/Non-directional Overcurrent ($50/51/67$)

• Directional/Non-directional Earth Fault ($50N/51N/67N$)

• Arc Protection (Optional via sensors)

• High-Impedance Busbar Protection ($87B$)

• Negative Sequence Overcurrent ($46$)

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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