Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | REG670 |
| Part Number | 1MRK002826-AC |
| Brand | ABB |
| Series | Relion 670 |
| Product Type | Generator Protection IED / Relay |
| Application | Generator and generator-transformer protection |
| Rated Voltage | Suitable for systems up to 36 kV; higher system voltages require VT adaptation |
| Rated Current | 1 A / 5 A configurable |
| Primary Current Application Range | Up to 5,000 A |
| Frequency Range | 47.5 Hz to 63 Hz |
| Auxiliary Power Supply | Typically 24-250 VDC or 48-240 VAC |
| Communication Interfaces | Ethernet, RS-485 |
| Communication Protocols | IEC 61850, Modbus, TCP/IP |
| Protection Functions | Generator differential, stator earth-fault, rotor earth-fault, overcurrent, overvoltage, undervoltage, reverse power |
| Disturbance Recording | Integrated event and disturbance recording |
| Configuration Tool | ABB PCM600 |
| Operating Temp | -25 deg C to +70 deg C |
| Compliance Standards | IEC 60255, IEC 61850, IEC 61508 |
| SIL Capability | SIL 2 capable |
ABB Protection and Communication Functions
The REG670 combines electrical protection functions with programmable control and monitoring logic. Generator differential protection compares measured current quantities, while earth-fault functions monitor generator insulation fault conditions.
The device supports IEC 61850 communication and high-speed GOOSE messaging for substation automation. Ethernet and RS-485 interfaces provide communication paths for protection data, control signals, and system supervision.
In addition, the integrated disturbance recorder stores operational and fault-related information for subsequent analysis. PCM600 provides configuration and logic engineering for supported protection and control functions.
Frequently Asked Questions
Q: Can the REG670 accept both 1 A and 5 A current inputs?
A: Yes. The supplied specifications identify 1 A / 5 A configurable current inputs.
Q: What communication protocols does the REG670 support?
A: The supplied data specifies IEC 61850, Modbus, and TCP/IP, with Ethernet and RS-485 interfaces.
Q: What environmental temperature range is specified?
A: The supplied specification states an operating range of -25 deg C to +70 deg C.
Field Installation Guidelines
- Verify the complete ordering code, terminal configuration, and wiring documentation before installation.
- Match CT secondary circuits with the configured 1 A or 5 A input rating.
- Route CT, VT, binary, communication, and power wiring separately where practical to reduce electrical interference.
- Apply shield termination according to the substation grounding design and communication interface requirements.
- Verify CT polarity and phase identification before energizing protection circuits.
- Confirm auxiliary supply voltage and polarity before applying power.
- Check Ethernet and RS-485 wiring against the selected communication topology and protocol configuration.
- Perform insulation, continuity, I/O, communication, and protection-function tests before placing the IED into service.
- Use the approved PCM600 configuration and verify firmware compatibility before loading a project configuration.
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