ABB REF615 Feeder Protection and Control Intelligent Electronic Device

Description

Technical Specifications

• Product Type: Feeder Protection and Control IED
• Product Family: ABB Relion® 615 Series
• Operating Voltage: 85–265 V AC/DC (wide input range)
• Frequency: 50/60 Hz (dual frequency compatible)
• Power Consumption: 10 VA (typical)
• Current Inputs: 3×CT inputs (1 A/5 A configurable), 1×residual current input
• Voltage Inputs: 3×VT inputs
• Digital Inputs: 16 optically isolated digital inputs (24–250 V DC/AC)
• Digital Outputs: 12 relay outputs (changeover contacts, 250 V AC/30 V DC, 5 A)
• Display: 4.3-inch color graphical LCD with customizable SLD (Single Line Diagram)
• Communication Interfaces:
  • 2×100BASE-TX Ethernet ports (RJ45)
  • 1×RS-485 serial port
  • Optional fiber optic ports (100BASE-FX, LC)
• Supported Protocols: IEC 61850 Edition 1/2 (including GOOSE, IEC 61850-9-2 LE), Modbus (RTU/TCP), DNP3.0, IEC 60870-5-103ABB Group
• Time Synchronization: IEEE 1588 V2 (PTP), SNTP, IRIG-B
• Redundancy: HSR (High-availability Seamless Redundancy), PRP (Parallel Redundancy Protocol)
• Operating Temperature: -25°C to +70°C
• Storage Temperature: -40°C to +85°C
• Humidity: 5–95% non-condensing
• Dimensions: 177 mm (H) × 164 mm (W) × 194 mm (D) (4U rack-mounted)
• Weight: 3.5 kg (main unit), 1.8 kg (spare unit)
• Protection Rating: Front panel IP54, top IP40, rear IP20
• Certifications: IEC 60255, IEC 61800-5-1, CE, UL, RoHS, EMC compliant

Key Functional Features

Comprehensive Protection Functions

• Overcurrent Protection: Directional/non-directional, instantaneous, definite time, inverse time (50/51, 67)
• Earth Fault Protection: Sensitive, directional, multi-frequency admittance-based, intermittent fault detection (50G/51G, 67N)
• Voltage Protection: Over/undervoltage (27/59), residual overvoltage (59G), positive/negative sequence voltage
• Frequency Protection: Over/under frequency (81), rate of change of frequency (df/dt)
• Thermal Protection: Thermal overload (49) with thermal replica modeling
• Arc Flash Protection: Optional 3-channel optical detection for internal arc fault protection
• Additional Protection: Negative sequence overcurrent, phase discontinuity, breaker failure protection, inrush current detection

Advanced Control & Automation

• Circuit Breaker Control: Local/remote control, trip/close logic, interlocking functions
• Auto-Reclosing: Multi-shot, configurable sequence with pre/post-acceleration, manual close acceleration
• Synchronization: Voltage, frequency, phase angle matching for feeder synchronization
• Load Shedding: Priority-based load shedding for system stability
• Custom Logic: User-configurable logic via graphical programming tools
• Multiple Setting Groups: Up to 8 setting groups for flexible operation mode switching

High-Precision Measurement & Monitoring

• Measurement Accuracy: 0.2-class for energy metering, 0.5-class for current/voltage
• Measured Parameters: Current, voltage, power (active/reactive/apparent), energy, frequency, power factor
• Fault Recording: Digital Fault Recorder (DFR) with 4 analog + 64 binary channels, 4 kHz sampling rate
• Event Logging: Sequence of Events Recorder (SER) with 500+ time-stamped events (1 ms resolution)
• Continuous Monitoring: Breaker status, trip circuit supervision, RTD supervision, self-diagnosticseero

Robust Communication & Integration

• IEC 61850 Native Support: Full compliance for seamless substation automation integration
• Redundant Communication: HSR/PRP for zero-time failover, ensuring communication reliability
• Multi-Protocol Support: Compatibility with legacy and modern industrial communication systems
• Horizontal Communication: GOOSE messaging for fast peer-to-peer interlocking
• Remote Access: Web-based HMI, remote configuration, and diagnostic accessABB Group

Industrial Reliability & Design

• Withdrawable Unit Design: Easy installation, testing, and replacement without system shutdown
• Harsh Environment Rating: Extended temperature, high vibration/shock resistance
• EMC Compliance: Superior immunity to electromagnetic interference in industrial environments
• Coated Electronics: Enhanced protection against dust, moisture, and chemical pollutants
• Front Panel Interface: Intuitive HMI with LED indicators for local operation and status monitoring

Application Scenarios

Electric Utility Distribution

• Primary Distribution Substations: Feeder protection for overhead lines and underground cables
• Secondary Distribution Networks: Radial/looped/meshed network protection and control
• Distribution Automation: Integration with SCADA for remote monitoring and control
• Busbar Protection: Reverse interlocking or GOOSE-based low-voltage busbar protection

Industrial Power Systems

• Oil & Gas: Refinery, petrochemical plant, and offshore platform distribution protection
• Metals & Mining: Smelter, rolling mill, and mine substation feeder control
• Cement & Minerals: Raw material, kiln, and finishing plant power distribution
• Pulp & Paper: Mill substation and motor control center protection
• Chemicals & Pharmaceuticals: Hazardous area distribution with safety interlocking

Renewable Energy Integration

• Solar PV Plants: Inverter station feeder protection and grid interconnection control
• Wind Farms: Collector system feeder protection and voltage/frequency regulation
• Hybrid Power Systems: Microgrid feeder protection with distributed generation support

Commercial & Infrastructure

• Airports & Seaports: Critical load distribution and backup power control
• Data Centers: UPS and critical power feeder protection
• Hospitals & Healthcare Facilities: Life safety system power supply protection
• Rail & Mass Transit: Traction power distribution and auxiliary system control

Water & Wastewater

• Water Treatment Plants: Pump station and process power distribution
• Wastewater Facilities: Aeration basin and sludge processing system protection
• Water Supply Networks: Pumping station feeder control and automation