Technical Parameters Parameter Category Specification Product Series / Platform ABB Relion® 670 Series (Bay Control & Protection) Device Type Numerical Bay Control and Protection Unit Key Standards IEC 60255, IEC 61850 (Edition 2), IEC 60870-5-103/-104 Rated Auxiliary Supply (Us) 48 - 250 V DC / 48 - 240 V AC, 50/60 Hz (Suffix -70). Other ranges (-11, -12) available. Analog Inputs • Current (CT) Inputs Up to 6 current inputs, configurable for 1 A or 5 A secondary. 690 in code often indicates a specific I/O configuration. • Voltage (VT) Inputs Up to 6 voltage inputs, typically 100/110 V or 100/√3 V line-to-neutral. Protection Functions (Comprehensive Suite) Includes but is not limited to: • Differential Protection (87B, 87T) • Distance Protection (21) with multiple zones • Directional/Nondirectional Overcurrent (67/50, 51) • Breaker Failure Protection (50BF) • Over/Under Voltage & Frequency (27/59, 81) • Synchrocheck (25) • Arc Protection (optional) Control & Interlocking • Bay Control Full local/remote control of circuit breakers, disconnectors, earthing switches. • Programmable Logic Powerful CLP (Configuration Logic Programming) for custom interlocking, automation sequences, and signal processing. • Binary I/O Extensive configurable binary inputs and outputs (e.g., 48 BI, 40 BO). Measurement & Metering High-accuracy measurement of I, V, P, Q, S, PF, f, energy, harmonics, etc. Class 0.5 per IEC 61869. Human-Machine Interface (HMI) • Display Large, high-resolution color graphical LCD with intuitive menu structure. • Interface Front USB port for configuration and data extraction. Keypad for local operation. Data Recording • Event Recorder ≥ 5000 time-tagged events with sequence-of-events (SOE) resolution. • Disturbance Recorder High-speed fault recording (oscillography) with analog channels and binary signals. • Maintenance Data Breaker operation statistics, load profile, thermal overload history. Communication Interfaces Multiple, redundant ports: • Front: Ethernet (RJ45), USB. • Rear: 2-4 Ethernet ports (RJ45 or fiber) for station bus (IEC 61850-8-1, GOOSE). Serial ports (RS485) for legacy protocols (IEC 60870-5-103, Modbus). Time Synchronization Supports IRIG-B, SNTP/NTP, and PTP (IEEE 1588). Environmental • Operating Temperature -25°C to +70°C (Extended range: -40°C to +70°C optional) • Protection Rating IP54 (front panel) for harsh substation environments. Mechanical & Mounting 19-inch rack mountable (4U height) or panel-mounted version available. Robust metal housing. Configuration Software PCM600 – ABB's universal engineering tool for parameter setting, logic configuration, and documentation. Typical Applications HV/MV feeder protection & control, transformer protection (high-side), busbar protection, capacitor bank protection.