Relion 630 Series
ABB Relion 630 Series Protection Relays
ABB Relion 630 Series covers comprehensive feeder, transformer, motor and generator protection, control and measurement with REF630, RET630, REM630 and REG630. Availability must be confirmed per project.
About this product
ABB Relion 630 Series was developed for demanding utility and industrial applications requiring extensive protection, control, measurement, supervision, and bay automation. The Forvis Trade scope covers four models — REF630 for feeder protection, RET630 for transformer protection, REM630 for motor protection, and REG630 for generator protection.
Platform structure
- REF630: feeder protection and control for overhead lines and cable feeders in radial, looped, and meshed systems.
- RET630: transformer protection and control for two-winding power transformers, step-up transformers, and generator-transformer units.
- REM630: motor protection and control for medium and large asynchronous and synchronous motors.
- REG630: generator protection and control for small and medium generators and generator-transformer units.
All four models share the 630 Series' extensive I/O and bay-automation platform; what differs is the protection function set and analogue interfaces specific to each application.
Model selection
REF630 is a comprehensive feeder management relay covering advanced feeder protection, earth-fault protection, fault location, bay control, extensive I/O, and optional RTD or mA interfaces.
RET630 covers transformer differential protection (87T), thermal overload protection (49), voltage protection, hot-spot and insulation-ageing monitoring, and optional automatic voltage regulation for an on-load tap changer.
REM630 covers machine differential protection (87M), thermal overload protection (49M), motor start-up supervision (48/66), frequency protection, and optional RTD or mA monitoring.
REG630 covers generator differential protection (87G), third-harmonic stator earth-fault protection (64TN), reverse power protection (32R), interconnection protection, and optional RTD or mA monitoring.
Typical applications
- Overhead lines and cable feeders in radial, looped, and meshed networks
- Two-winding, step-up, and generator-transformer units
- Medium and large asynchronous and synchronous motors
- Small and medium generators and generator-transformer units
- Bay automation and extensive I/O applications
Availability and project verification
The reviewed official ABB sources identify REF630, RET630, REM630, and REG630 within the 630 Series. This content does not assign a commercial product status or discontinuation date. Before quotation, a new project, spare-unit request, or modernization study, confirm product availability, support scope, firmware, exact order code, and the appropriate current alternative directly for the project.
Modernization approach
A replacement or modernization study for an installed 630 Series relay should begin with the device order code, firmware, PCM600 configuration, communication architecture, analog inputs, binary I/O, and panel cut-out. A replacement must not be selected from the model name alone. Function equivalence, logic, wiring, and station communication must be checked before quotation or specification.
Technical Specifications
| Applications | Feeder, transformer, motor and generator protection and bay control |
| Platform | Freely configurable and scalable withdrawable Relion 630 Series platform |
| Communication | Native IEC 61850 Edition 1 with GOOSE; DNP3 TCP/IP and IEC 60870-5-103 depending on model |
| IEC 61850 | Edition 1 |
| Sensor Support | Order-code and model dependent; verify existing analog input modules |
| Arc-Flash Protection | Not treated as a shared family function; verify installed configuration |
| Mounting | Withdrawable relay with integrated or detached HMI depending on version |
| Engineering Software | ABB PCM600 |
| Product Status | Availability, support scope and exact version must be confirmed per project |
Model Selection
| Model | Platform class | Main application | Critical verification | Recommended approach |
|---|---|---|---|---|
| REF630 | Scalable withdrawable 630 Series feeder management relay | Feeder protection and bay control | Network earthing method, fault location, analogue inputs and bay control logic | Installed-system support requires direct hardware verification; REX640 should be evaluated first for modernization |
| RET630 | Scalable withdrawable 630 Series transformer protection relay | Two-winding transformer protection and bay control | Differential protection, vector group, restricted earth fault, temperature monitoring and OLTC control where present | Installed-system support requires full hardware and settings verification; REX640 should be evaluated first for modernization |
| REM630 | Scalable withdrawable 630 Series motor protection relay | Large asynchronous and synchronous motor protection | Machine differential, thermal model, starting and locked-rotor supervision, and process temperature monitoring | Installed-system support requires motor and hardware data extraction; REX640 or, depending on application, REX615 should be evaluated for modernization |
| REG630 | Scalable withdrawable 630 Series generator protection relay | Generator and generator-transformer protection | Generator differential, stator earth-fault, reverse-power and interconnection protections | Installed-system support requires extracting generating-unit and connection requirements; REX640 should be evaluated first for modernization |
Hardware and Integration
| Model | Measurement inputs | Digital I/O | Sensor support | IEC 61850 | Installed-system check |
|---|---|---|---|---|---|
| REF630 | Conventional CT/VT inputs | Modular, scalable BI/BO | Conventional CT/VT | Edition 1 | Fault location, RTD/mA option and advanced bay control |
| RET630 | Conventional CT/VT inputs | Modular, scalable BI/BO | Conventional CT/VT | Edition 1 | Optional automatic voltage regulation, hot-spot and ageing monitoring |
| REM630 | Conventional CT/VT inputs | Modular, scalable BI/BO | Optional RTD/mA module | Edition 1 | Synchronous and asynchronous motor applications |
| REG630 | Conventional CT/VT inputs | Modular, scalable BI/BO | Optional RTD/mA module | Edition 1 | Generator-transformer unit protection and distributed generation interconnection functions |
Protection Functions
| Model | Protection scope | Main functions |
|---|---|---|
| REF630 | Advanced feeder, earth-fault and fault-location functions | 50/51, 50N/51N, 67/67N, 50BF, 79, application dependent |
| RET630 | Transformer differential, thermal, voltage and monitoring functions | 87T, 49, 50BF, voltage and application-dependent backup protection |
| REM630 | Machine differential, thermal and motor start-up protection | 87M, 49M, 48/66, 50BF, 81 |
| REG630 | Generator differential, stator earth-fault, reverse-power and interconnection protection | 87G, 64TN, 32R, interconnection and application-dependent backup protection |
Ordering Options
| Article Code | Hardware Class | Main Application | Protection Scope | Protection Functions | Measurement Inputs | Digital Inputs and Outputs | Sensor Support | Communication | IEC 61850 | Arc-Flash Protection | Mounting | Special Functions | Product Status | selection differentiator | selection note |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| REF630 | Scalable withdrawable 630 Series feeder management relay | Feeder protection and bay control | Advanced feeder, earth-fault and fault-location functions | 50/51, 50N/51N, 67/67N, 50BF, 79, application dependent | Conventional CT/VT inputs | Modular, scalable BI/BO | Conventional CT/VT | IEC 61850 Edition 1, GOOSE, DNP3 TCP/IP and IEC 60870-5-103 | Edition 1 | Verify installed configuration | Withdrawable; integrated or detached HMI | Fault location, RTD/mA option and advanced bay control | Availability and exact version must be confirmed per project | Network earthing method, fault location, analogue inputs and bay control logic | Installed-system support requires direct hardware verification; REX640 should be evaluated first for modernization |
| RET630 | Scalable withdrawable 630 Series transformer protection relay | Two-winding transformer protection and bay control | Transformer differential, thermal, voltage and monitoring functions | 87T, 49, 50BF, voltage and application-dependent backup protection | Conventional CT/VT inputs | Modular, scalable BI/BO | Conventional CT/VT | IEC 61850 Edition 1, GOOSE, DNP3 TCP/IP and IEC 60870-5-103 | Edition 1 | Verify installed configuration | Withdrawable; integrated or detached HMI | Optional automatic voltage regulation, hot-spot and ageing monitoring | Availability and exact version must be confirmed per project | Differential protection, vector group, restricted earth fault, temperature monitoring and OLTC control where present | Installed-system support requires full hardware and settings verification; REX640 should be evaluated first for modernization |
| REM630 | Scalable withdrawable 630 Series motor protection relay | Large asynchronous and synchronous motor protection | Machine differential, thermal and motor start-up protection | 87M, 49M, 48/66, 50BF, 81 | Conventional CT/VT inputs | Modular, scalable BI/BO | Optional RTD/mA module | IEC 61850 Edition 1, GOOSE, DNP3 TCP/IP and IEC 60870-5-103 | Edition 1 | Verify installed configuration | Withdrawable; integrated or detached HMI | Synchronous and asynchronous motor applications | Availability and exact version must be confirmed per project | Machine differential, thermal model, starting and locked-rotor supervision, and process temperature monitoring | Installed-system support requires motor and hardware data extraction; REX640 or, depending on application, REX615 should be evaluated for modernization |
| REG630 | Scalable withdrawable 630 Series generator protection relay | Generator and generator-transformer protection | Generator differential, stator earth-fault, reverse-power and interconnection protection | 87G, 64TN, 32R, interconnection and application-dependent backup protection | Conventional CT/VT inputs | Modular, scalable BI/BO | Optional RTD/mA module | IEC 61850 Edition 1, GOOSE and model-dependent protocols | Edition 1 | Verify installed configuration | Withdrawable; integrated or detached HMI | Generator-transformer unit protection and distributed generation interconnection functions | Availability and exact version must be confirmed per project | Generator differential, stator earth-fault, reverse-power and interconnection protections | Installed-system support requires extracting generating-unit and connection requirements; REX640 should be evaluated first for modernization |
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