ABB RET615 Transformer Protection and Control Relay

Product Description

Configured for transformer protection, measurement, control, and supervision within the ABB Relion RET615 platform, the ABB RET615C_E HCTJBABAABC2DNN11E (RET615 transformer protection and control relay) processes CT and VT signals and exchanges protection and control data through configured communication interfaces.

Hardware Specifications

Transformer Protection and IEC 61850 Communication

The RET615 receives transformer current and voltage signals through configured CT and VT input circuits. Differential protection compares transformer-side current quantities and applies the configured stabilization and harmonic restraint functions.

Restricted earth-fault protection provides a dedicated protection function for earth faults within the defined transformer zone. Additional protection functions can process phase current, earth-fault current, voltage, thermal, and frequency measurements.

For substation communication, the supplied configuration supports IEC 61850 communication, including GOOSE messaging. IEC 61850-9-2 LE sampled-value communication can be included where the specific hardware and software configuration supports the process-bus function.

The ordering code HCTJBABAABC2DNN11E identifies a specific RET615 hardware and software configuration. The supplied data does not provide a verified character-by-character decoding of this suffix, so individual option positions are not assigned here.

Frequently Asked Questions

Q: What physical signals does the RET615 process?
A: The relay processes transformer-related current signals through 1 A / 5 A CT inputs and voltage signals through configured VT inputs.

Q: Does the RET615 support IEC 61850 communication?
A: Yes. The supplied specifications identify IEC 61850 support, including Edition 2 and GOOSE messaging. IEC 61850-9-2 LE sampled values are also identified as an available process-bus function.

Q: Can the exact hardware configuration be determined from HCTJBABAABC2DNN11E?
A: The suffix represents the specific ordering configuration, but the supplied information does not provide a verified position-by-position decoding. Individual hardware options should therefore be confirmed against the unit documentation or order record.

Field Installation Guidelines

• Verify the complete RET615 order code against the installed protection scheme before wiring.
• Confirm CT and VT secondary ratings before connecting the analog input circuits.
• Maintain correct CT polarity and phase identification throughout the transformer protection circuit.
• Separate CT/VT wiring from high-current power conductors and switching circuits where practical.
• Apply the specified terminal torque and conductor preparation requirements from the applicable ABB installation documentation.
• Connect protective earth according to the applicable panel and substation grounding design.
• Keep communication wiring separated from high-energy switching conductors to reduce electromagnetic interference.
• For Ethernet or IEC 61850 connections, use the configured physical interface and network topology specified for the installation.
• Verify binary input and output assignments against the approved protection and control logic before energization.
• Perform secondary injection and functional checks after wiring to verify measurement polarity, protection elements, binary I/O, and configured communication functions.

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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