Description
System role in substation architecture
A typical installation context:
- Feeder outgoing bays (11–400 kV depending on utility design)
- Bus coupler / bus section bays
- Transformer HV side control bays
- Industrial intake substations with automation upgrade programs
In older stations, it replaces:
- interposing relay banks
- hardwired interlocking chains
- discrete signaling modules
The trade-off is simple:
less copper wiring, more configuration dependency.
Key technical specifications (field-relevant summary)
From available ABB Relion 670-series configuration data:
- Series: ABB Relion 670
- Device type: Bay control and protection IED
- Auxiliary supply: 24–250 V DC or 48–250 V AC/DC (variant dependent)
- Inputs/Outputs: configurable binary inputs and relay outputs depending on hardware option
- Communication: IEC 61850 (GOOSE + MMS), plus legacy SCADA protocols in some configurations
- Applications: single breaker, double breaker, 1½ breaker arrangements
- Operating temperature: typically industrial substation range (verify by firmware/hardware revision)
- Mounting: 19-inch rack, modular plug-in design
