ABB RED615 Line Differential Protection and Control Relay

Product Description

Configured for phase-segregated line differential protection in electrical distribution networks, the ABB RED615 2RCA013892A0003 (RED615 line differential protection and control relay) provides direct electrical measurement, protection logic, and communication functions. The relay processes CT and VT signals, performs differential and backup protection, and exchanges protection and control data through supported station communication interfaces.

Hardware Specifications

ABB Relion RED615 Protection and Communication Functions

The RED615 processes phase currents from CT circuits and voltage signals from VT circuits where applicable. Its differential protection compares corresponding line-end measurements and applies protection logic to distinguish internal faults from external fault conditions.

The relay also provides directional or non-directional overcurrent protection, earth-fault protection, thermal overload protection, and breaker failure functions. These functions operate on measured electrical quantities and configured protection settings.

For substation communication, the RED615 supports IEC 61850 station and process-level communication. GOOSE messaging provides exchange of configured binary protection and control signals. PRP and HSR can provide redundant Ethernet communication paths when the installed hardware configuration supports these functions.

Frequently Asked Questions

Q: Does the RED615 support hot-swapping of the complete relay during energized operation?
A: The supplied information does not establish a hot-swap procedure or energized replacement rating. Replacement should therefore follow the applicable ABB installation and maintenance procedure with the circuit isolated as required.

Q: What CT input ratings are specified for the RED615?
A: The supplied specifications identify 1 A / 5 A CT inputs. The exact input arrangement depends on the hardware configuration of the relay.

Q: Which communication protocols can the RED615 use?
A: The stated protocols include IEC 61850, Modbus, DNP3, and IEC 60870-5-103. IEC 61850 includes Edition 1, Edition 2, and GOOSE support.

Field Installation Guidelines

Install the relay in the specified flush-mounting arrangement and provide adequate clearance for wiring, terminal access, and removal of the plug-in unit.

Connect CT and VT circuits according to the approved protection schematic. Verify CT polarity, phase identification, secondary circuit continuity, and grounding before energizing the protection circuits.

Route CT, VT, binary I/O, and communication wiring separately where practical. Avoid parallel routing with high-current power conductors when electromagnetic interference could affect low-level measurement or communication circuits.

Terminate cable shields according to the project grounding design. Avoid creating unintended shield loops between separate grounding points.

Before commissioning, verify the auxiliary supply against the exact relay hardware variant. Confirm protection settings, binary I/O assignments, communication parameters, and IEC 61850 configuration against the approved engineering files.

For fiber-optic communication, inspect connector cleanliness, fiber routing, bend limits, and port assignment before testing the communication link.

Other Attributes

• Series: Advant OCS/800xA
• Country of Origin:  Germany/Sweden/Finland
• Lead Time: In Stock, 2 Working Days

In Stock Hot Items of ABB

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