Description
Product Core Brief
- Model:
- Order Code: Full order code required
- Brand: ABB / Hitachi Energy Relion 670 series
- Core Function: Generator and generator-transformer protection, control, measurement and monitoring IED for power plants.
- Product Type: Generator Protection and Control IED
- Key Specs: Generator differential protection | Stator/rotor earth-fault protection | Loss-of-excitation and out-of-step protection | Overcurrent, overvoltage, frequency and thermal overload protection | IEC 61850 with GOOSE | PCM600 engineering | Multiple setting groups and disturbance recording
- Condition: New Original / New Surplus
Product Introduction
The ABB REG670 is a generator protection and control intelligent electronic device from the Relion 670 series. It is designed for hydro, thermal, gas, diesel, nuclear, combined-cycle and cogeneration power plants, providing comprehensive protection for generators, prime movers, auxiliary transformers and generator-transformer units.
REG670 integrates generator differential protection, transformer differential protection, stator earth-fault protection, rotor earth-fault protection, loss-of-excitation protection, out-of-step protection, negative-sequence overcurrent protection, overvoltage/undervoltage protection, frequency protection, thermal overload protection and breaker failure protection. It supports accurate current, voltage, power and energy measurement, event logging, disturbance recording and flexible local HMI operation. Communication is supported via IEC 61850 and other substation protocols, and the device is engineered using ABB PCM600.
Because REG670 configurations vary by application package, analog inputs, binary I/O, communication options and firmware, the full order code must be verified against the installed nameplate before procurement.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Name | REG670 Generator Protection and Control IED |
| Order Code | Full order code required |
| Brand | ABB / Hitachi Energy Relion 670 series |
| Primary Function | Generator, generator-transformer and auxiliary transformer protection, control and monitoring |
| Typical Applications | Hydro, thermal, gas, diesel, nuclear, combined-cycle and cogeneration power plants |
| Communication | IEC 61850 with GOOSE; additional protocols depend on configuration and firmware |
| Engineering Tool | ABB PCM600 |
| Condition Available | New Original / New Surplus |
Note: Public sources confirm REG670 as a Relion 670 series generator protection IED with differential, earth-fault, loss-of-excitation, out-of-step, voltage, frequency and thermal protection functions. However, the exact application package, I/O configuration, auxiliary voltage, communication modules and firmware for a specific REG670 unit are not fully confirmed without the full order code. Always verify the installed nameplate, hardware version and PCM600 project data before replacement.
Quality Control Process
Each REG670 unit is inspected for housing condition, front-panel HMI, terminal blocks, communication ports, mounting points and nameplate data. Where test conditions allow, auxiliary power, LED indicators, HMI display and communication interfaces are checked to confirm basic readiness. The unit is packed with anti-static and shock-resistant protection to prevent damage to terminals, connectors and display components during transit.
Replacement Pitfall Guide
❗ Confirm the full order code. REG670 variants differ by application package, analog inputs, binary I/O, communication options and firmware.
❗ Verify the hardware and firmware version. Relion 670 series devices have multiple hardware and firmware versions; configuration files may not be fully compatible across versions.
❗ Check the protection application package. Confirm whether the original unit is configured for generator-only, generator-transformer, auxiliary transformer or reactor protection.
❗ Review differential CT and earth-fault connections. Generator differential, transformer differential, stator earth-fault and rotor earth-fault circuits must match the existing CT wiring and neutral grounding arrangement.
❗ Back up configuration before removal. Export protection settings, signal matrix, I/O mapping, communication parameters, event records and disturbance recordings from PCM600 or the existing IED. Photograph terminal wiring, HMI status and module configuration before replacement.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Related Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| ABB | ABB REG670, same order code | Direct | Confirm hardware version, application package and firmware |
| ABB | Other REG670 variants | Needs Adaptation | Verify I/O, communication, CT inputs and protection functions |
| ABB | ABB RET670 / REC670 / REL670 | Not Direct | Different application focus for transformer, line or other protection |
| ABB | ABB REF615 / REF620 | Not Direct | Feeder protection platform; not suitable as direct generator main protection replacement |
Benchmarks
- Platform: ABB / Hitachi Energy Relion 670 series generator protection IED.
- Typical use: Generator, generator-transformer and auxiliary transformer protection in hydro, thermal, gas and nuclear power plants.
- Key advantage: comprehensive generator protection library, flexible I/O and communication configuration, and full PCM600 engineering support.
