ABB REF615D Feeder Protection and Control Intelligent Electronic Device

Description

Technical Specifications

• Product Type
  • Feeder Protection & Control Intelligent Electronic Device (IED)
• Application Voltage Level
  • Medium Voltage (MV): 1 kV – 36 kV
• Auxiliary Power Supply
  • AC Voltage: 100/110/120/220/240 V AC (±15%, 50/60 Hz)
  • DC Voltage: 24/48/60/110/125/220/250 V DC (±20%)
• Analog Inputs
  • Phase Current Inputs: 3 channels, programmable for 1 A or 5 A nominal CT secondaryeero
  • Residual Current Input: 1 channel (5 A / 1 A)eero
  • Voltage Inputs: 3-phase + residual voltage (optional, dependent on configuration)eero
  • Sensitive Earth Fault (SEF) Input: 1 channel, 0.2 A nominaleero
• Binary Inputs/Outputs (Standard)
  • Binary Inputs: 8 optically isolated, programmable inputseero
  • Binary Outputs: 7 relay outputs (2 NO with trip supervision, 3 NO, 2 Form C)eero
  • Expanded I/O (Optional): Up to 16 binary inputs and 10 binary outputs
• Communication Interfaces
  • Ethernet: 2 ports (supports PRP/HSR redundancy)ABB Group
  • Serial: RS485 port
  • USB: Front USB port for local configurationABB Group
• Supported Protocols
  • Primary: IEC 61850 Ed. 1 & 2 (including GOOSE, SV/IEC 61850-9-2 LE)ABB Group
  • Secondary: DNP3.0, Modbus TCP/RTU, IEC 60870-5-103ABB Group
  • Time Sync: IEEE 1588 PTP V2, IRIG-BABB Group
• Physical Characteristics
  • Design: Withdrawable plug-in unitABB Group
  • Dimensions: 105 mm (W) x 275 mm (H) x 195 mm (D)
  • Display: Large graphical LCD with customizable single-line diagramsABB Group
  • Protection Rating: IP20 (front), IP20 (rear)
• Environmental Ratings
  • Operating Temperature: -25 °C to +55 °C
  • Storage Temperature: -40 °C to +70 °C
  • Humidity: 5 – 95% RH (non-condensing)
  • EMC: Complies with IEC 60255-6, EN 55011 Class Aeero
• Certifications
  • CE, UL, IEC 60255, IEC 61850-3

Key Features

• Comprehensive Feeder Protection
  • Provides directional and non-directional overcurrent and earth-fault protectioneero.
  • Integrates multi-frequency admittance-based sensitive earth-fault (SEF) and high-impedance (HIZ) fault detection for unmatched selectivityABB Group.
  • Includes thermal overload, phase discontinuity, over/undervoltage, and residual overvoltage protection.
  • Supports auto-reclose (multi-shot) and arc-flash protection (optional with 3-channel light sensors).
• Advanced Communication & Redundancy
  • Native IEC 61850 support enables seamless substation integration and peer-to-peer GOOSE messaging (3 ms latency)eero.
  • Built-in PRP/HSR Ethernet redundancy ensures zero-time failover and uninterrupted communicationABB Group.
  • IEEE 1588 PTP V2 for microsecond-accurate time synchronization across the gridABB Group.
• Programmable Logic & Control
  • Features embedded PLC-style programmable logic for custom automation and interlocking schemes.
  • Offers comprehensive circuit breaker failure protection (CBFP) and trip circuit supervision (TCS)eero.
  • Supports busbar protection via reverse interlocking or GOOSE logiceero.
• High-Fidelity Monitoring & Diagnostics
  • Disturbance Recorder: Captures up to 12 analog & 64 binary channels in COMTRADE format.
  • Event Recorder: Non-volatile memory storing 1000+ time-stamped events (SOE).
  • Continuous self-diagnostics and hardware health monitoringeero.
  • Power quality analysis: Measures THD, voltage sags/swells, and power factor.
• Operational Flexibility
  • Withdrawable design allows for hot-swapping without powering down the bayABB Group.
  • Local HMI and web-browser-based remote HMI for full control and monitoringABB Group.
  • Four-level, role-based user authentication (Viewer, Operator, Engineer, Admin) for securityeero.
  • Multiple standard configurations adapt to isolated, resistance-earthed, compensated, and solidly earthed networkseero.

Application Scenarios

• Utility Distribution Networks
  • Primary protection for overhead lines and underground cables in urban/rural gridsABB Group.
  • Protection and control in ring main units (RMUs) and compact distribution substationseero.
  • Enables Fault Location, Isolation, and Service Restoration (FLISR) in smart distribution systemsABB Group.
• Industrial Power Systems
  • Feeder protection for large manufacturing plants, mines, and processing facilitieseero.
  • Ensures reliable power for critical loads in petrochemical, water treatment, and cement plants.
• Grid with Distributed Generation (DG)
  • Safely integrates solar PV, wind farms, and battery energy storage systems into the MV grideero.
  • Provides anti-islanding protection and grid stability supportABB Group.
• Substation Automation
  • Acts as a bay controller in IEC 61850-based digital substations.
  • Facilitates seamless communication between switchgear, control rooms, and SCADA systemsABB Group.
• Specialized Industrial Installations
  • Protection for MV capacitor banks and large motor feeders.
  • Deployed in marine/offshore platforms, data centers, and commercial building MV distribution systemsABB Group.