ABB REF615C_E HCFDACADABC2BAN11E – Comprehensive Feeder Protection and Control Relay

• Current Range:
  • Primary Current: 100–4000 A (adjustable via current transformers or Rogowski coils) .
  • Secondary Current Input: 1 A or 5 A, with support for multi-frequency admittance-based earth-fault protection .
• Accuracy:
  • Measurement: ±0.2% for voltage/current; ±0.5% for power/energy .
  • Protection: ±5% for overcurrent/earth-fault settings .
• Physical Parameters:
  • Dimensions: 177 mm × 177 mm × 201 mm (W×H×D), DIN rail mountable with withdrawable plug-in design .
  • Weight: 4.1 kg (complete unit) for robust industrial integration .
• Environmental Ratings:
  • Protection: IP20 (dust protection) for indoor use .
  • Temperature: Operating range of -25°C to +70°C (-13°F to +158°F) .
  • Vibration Resistance: Compliant with IEC 60068-2-6 (10–500 Hz, 2 g) .
• Power Supply:
  • Auxiliary Power: 100–240 V AC/24–250 V DC (auto-ranging) with <13 W nominal power consumption .
  • Backup Power: Built-in capacitor support for critical operations during outages .

Functional Features

1. Comprehensive Protection Suite:
   • Core Protection:
     • Directional/non-directional overcurrent (50/51), earth fault (50N/51N), and distance protection with fault location accuracy ±2% of line length .
     • Arc flash detection (AFD) and high-impedance fault (HIF) detection for personnel and equipment safety .
   • Specialized Protection:
     • Multi-frequency admittance-based earth-fault protection for sensitive detection in compensated or isolated neutral systems .
     • Cable fault detection (CFD) and breaker failure protection for complex networks .
2. Advanced Control & Automation:
   • PLC Functionality:
     • Built-in IEC 61131-3 compliant logic engine for custom control sequences (e.g., auto-reclosing, load shedding) .
     • 25 binary inputs and 18 binary outputs for direct integration with switchgear and field devices .
   • Condition Monitoring:
     • Real-time analysis of power quality (THD, harmonics, voltage dips) and switchgear health (contact wear, thermal status) .
3. Communication & Integration:
   • Protocols:
     • IEC 61850 Ed.2 with HSR/PRP redundancy for seamless substation automation integration .
     • Modbus RTU/ASCII, DNP3, and IEEE 1588v2 for high-accuracy time synchronization .
   • Interfaces:
     • Dual 100 Mbps Ethernet ports, RS-485, and optical RS-232 for flexible connectivity .
     • Web-based HMI accessible via browser for remote configuration and diagnostics .
4. User Interface & Configuration:
   • 4.3-inch Color LCD: Displays real-time waveforms, mimic diagrams, and event logs .
   • ABB Control Builder: Graphical tool for parameter setup, disturbance analysis, and firmware updates .
   • QR Code Integration: Mobile app access to device status and configuration via QR code scanning .

Application Scenarios

1. Utility Substations:
   • Primary protection for overhead lines and cable feeders in radial, looped, or meshed grids .
   • Fault location and sectionalization for smart grid 自愈 (self-healing) applications .
2. Industrial Processes:
   • Motor control centers (MCCs) in manufacturing plants (e.g., automotive, chemical) requiring motor protection (thermal overload, unbalance) .
   • Load shedding and power quality management in mining and steel mills .
3. Renewable Energy Integration:
   • Protection for solar PV inverters and wind turbine grid connections, including anti-islanding and voltage/reactive power control .
   • Microgrid coordination with distributed energy resources (DERs) .
4. Digital Substations:
   • IEC 61850-9-2 LE process bus integration for reduced wiring and enhanced interoperability .
   • Redundant communication (HSR/PRP) for mission-critical systems .

Functional Architecture

• Hardware:
  • Dual-core processor (300 MHz) for real-time data processing and parallel task execution .
  • Redundant power supply inputs with surge protection .
• Software:
  • Embedded Linux OS for robust multitasking and cybersecurity .
  • Built-in disturbance recorder (100 events with 10-cycle resolution) for fault analysis .

Safety & Compliance

• Certifications: CE, UL, and IEC 61000-6-2/6-4 for EMC immunity .
• Cybersecurity:
  • AES-128 encryption for data communication and role-based access control (RBAC) .
  • Secure firmware updates via digital signatures .

Typical Configuration Example

• Power System: 20 kV MV substation with 8 feeders and distributed solar generation.
• Functions Enabled:
  • Overcurrent protection with 50/51 elements and auto-reclosing (3 shots).
  • Earth-fault protection using multi-frequency admittance method.
  • IEC 61850 integration with substation automation system for remote monitoring.