Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | REG670 |
| Brand | ABB |
| Product Family | Relion 670 Series |
| Product Type | Generator Protection IED |
| Primary Application | Generator and generator-transformer protection and control |
| Generator Types | Synchronous generators, asynchronous generators, pumped storage units |
| Generator Differential Protection | High-speed phase differential protection; operate time typically down to 15 ms |
| Stator Earth Fault Protection | 100% stator winding protection using low-frequency injection and third-harmonic voltage methods |
| Rotor Earth Fault Protection | Continuous field winding insulation monitoring |
| Out-of-Step Protection | Pole-slip and loss-of-synchronism detection |
| Overexcitation Protection | Excessive flux density protection |
| Overvoltage Protection | Generator voltage surge protection |
| Thermal Protection | Stator and rotor thermal overload protection |
| Communication | IEC 61850, IEC 60870-5-103, DNP 3.0, Modbus |
| IEC 61850 Functions | GOOSE messaging and peer-to-peer communication |
| I/O Configuration | Modular Binary Inputs, Binary Outputs, and Analog Inputs |
| Disturbance Recorder | Integrated disturbance recording and event logging |
| Engineering Software | ABB PCM600 |
| Configuration Interface | Front-panel USB port or rear Ethernet connection |
IEC 61850 and Protection Control Architecture
The REG670 uses IEC 61850 communication for substation protection and control data exchange. GOOSE messaging supports fast peer-to-peer signal transfer between compatible IEDs, while conventional interfaces support IEC 60870-5-103, DNP 3.0, and Modbus systems.
The modular hardware architecture allows the factory configuration to match required binary and analog signal quantities. Therefore, the exact I/O population and communication interface arrangement depend on the ordered hardware configuration.
The integrated disturbance recorder stores protection events and electrical disturbance information for post-fault analysis. PCM600 provides the engineering environment for IED configuration through the available USB or Ethernet interface.
Frequently Asked Questions
Q: Does every REG670 have the same I/O configuration?
A: No. The REG670 platform uses modular hardware, and the installed Binary Input, Binary Output, Analog Input, and communication modules depend on the factory order configuration.
Q: Which communication protocols does the REG670 support?
A: The supplied specification identifies IEC 61850, IEC 60870-5-103, DNP 3.0, and Modbus. IEC 61850 also supports GOOSE and peer-to-peer communication.
Q: Can the REG670 provide complete stator earth fault coverage?
A: The supplied specification identifies 100% stator winding protection using low-frequency injection and third-harmonic voltage methods. The actual protection scheme depends on the configured application and measurement arrangement.
Field Installation Guidelines
- Verify the exact REG670 factory configuration before wiring I/O, communication, and measurement circuits.
- Match current and voltage transformer circuits with the configured protection inputs and the approved protection scheme.
- Separate low-level communication wiring from high-current and high-voltage power conductors to reduce electromagnetic interference.
- Apply the specified protective-earth and signal-shielding practices required by the installation design.
- Confirm binary input and output assignments against the PCM600 configuration before commissioning.
- Verify IEC 61850 network addressing, communication configuration, and GOOSE signal mapping before placing protection functions into service.
- Check CT and VT circuit polarity, phase identification, and terminal allocation before energizing protection circuits.
- Perform functional tests for differential, earth fault, thermal, overvoltage, overexcitation, and out-of-step functions according to the approved protection test procedure.
- Confirm disturbance recorder operation and event-trigger configuration during commissioning.
- Do not substitute hardware modules or firmware without confirming compatibility with the specific REG670 factory configuration.
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