ABB REF610C11HCNR01 Feeder Protection and Control Relay

Description

Technical Specifications

Core System & Performance

• Processor: High‑speed numerical processing for real‑time protection and measurement
• Sampling Rate: 32 samples per power cycle (1.2 kHz at 50 Hz)
• Operating Frequency: 50/60 Hz (user‑selectable, 45–65 Hz range)
• Measurement Accuracy: Current ±1%; Time ±1%
• Setting Groups: 2 independent setting groups for operational mode switching
• Fault Recording: Integrated disturbance recorder for analog waveforms and digital signals
• Trip Time: < 350 ms from auxiliary power‑on; typical fault trip < 50 ms

Power Supply

• Nominal Voltage: 24–250 V DC / 110–240 V AC (universal input)
• Power Consumption: < 9 W (quiescent); < 13 W (operating)
• Isolation: Full galvanic isolation between power, I/O, and communication circuits
• DC Ripple: Max 12% of DC value (100 Hz)
• Voltage Interruption Tolerance: < 50 ms without relay reset

Analog Inputs

• Phase Current: 4 channels, 1 A or 5 A nominal (CT secondary)
• Residual Current: 1 channel (0.2 A/1 A/5 A optional) for earth‑fault detection
• Input Impedance: < 20 mΩ for CT compatibility
• Thermal Withstand: Continuous 20 A; 1 s 500 A

Digital I/O

• Digital Inputs: 2–5 galvanically isolated 24 V DC inputs (configurable)
• Power Outputs: 3 NO heavy‑duty trip contacts (250 V AC / 30 V DC, 5 A)
• Signal Outputs: 2–5 NO/NC configurable contacts (alarm, status, indication)
• HMI Indicators: 3 fixed LEDs (Ready, Start, Trip); 8 programmable LEDs

Communication Interfaces

• Standard: RS‑485 (Modbus RTU/ASCII, IEC 60870‑5‑103, SPA, DNP3.0)
• Optional: IEC 61850‑8‑1, Profibus DP, fiber‑optic (plastic/glass)ABB
• Local Port: Front USB for PC configuration (PCM600 software)
• Time Sync: IRIG‑B input for accurate time stamping

Physical & Environmental

• Dimensions: 160 mm (H) × 164 mm (W) × 149 mm (D)
• Weight: Approx. 1.5 kg
• Mounting: Plug‑in flush mounting (4U rack compatible)
• Protection Rating: IP54 (front); IP20 (rear terminals)
• Operating Temperature: -25 °C to +55 °C (continuous)
• Storage Temperature: -40 °C to +70 °C
• Humidity: 5%–95% RH (non‑condensing)
• EMC Compliance: IEC 61000 series, EN 50081‑2, CISPR 11
• Certifications: CE, KEMA, DNV (marine/offshore), IEC 60255, RoHSABB

Functional Features

Comprehensive Protection Functions

• Three‑Stage Overcurrent Protection: Instantaneous, high‑set, low‑set with definite time (DT) and inverse definite minimum time (IDMT) characteristics (IEC/ANSI compliant)
• Two‑Stage Earth‑Fault Protection: Non‑directional low‑set/high‑set; sensitive residual detection
• Thermal Overload Protection: Cable/feeder thermal memory (49) for overheating prevention
• Phase Discontinuity Protection: Detects open‑phase and unbalanced load conditions (46)
• Optional Arc Protection: Two lens sensor inputs; automatic background adjustment; fast busbar arc‑fault tripping
• Auto‑Reclose Function: 1–3 programmable shots for overhead line fault clearance (79)
• Breaker Failure Protection: Backup tripping if main breaker fails to open (50BF/51BF)
• Trip Circuit Supervision: Monitors breaker trip‑circuit integrity; alarms on faults
• Breaker Condition Monitoring: Trip counter, travel time, and accumulated current tracking

Control & Automation

• Local/Remote Control: Breaker close/trip via HMI or communication bus
• Interlocking Logic: Configurable safety interlocks for switchgear operation
• Sequence Control: Timers and logic gates for automated switching sequences
• Trip Lockout: Prevents repeated tripping after severe faults

Monitoring & Diagnostics

• Real‑Time Measurements: Phase/residual current, power, energy, and power factor
• Event Logging: 10,000+ time‑stamped events (1 ms resolution)
• Disturbance Recording: Pre/post‑fault waveform capture for fault analysis
• Self‑Diagnostics: Continuous hardware/software monitoring; alarms for internal faults
• User‑Friendly HMI: 2×16 alphanumeric LCD; 6 navigation keys; multilingual support

Flexibility & Integration

• Plug‑In Design: Patented removable unit for fast installation and maintenance
• Modular Communication: Optional protocol cards for system integrationABB
• Universal Compatibility: Works with ABB and third‑party switchgear (UniGear, SafeGear)
• Marine/Offshore Rated: DNV certification for harsh marine environmentsABB

Application Scenarios

Utility Distribution Networks

• MV Feeders: Protection for overhead lines and underground cables in distribution substationsABB
• Distribution Transformers: Backup protection for pole‑mount and pad‑mount transformers
• Capacitor Banks: Overcurrent and unbalance protection for reactive power compensation
• Sectionalizers/Reclosers: Automated control and protection for grid sectionalizing devices

Industrial Power Systems

• Manufacturing Plants: Motor and feeder protection for pumps, fans, conveyors
• Mining Operations: Heavy‑duty protection for underground power distribution
• Oil & Gas Facilities: Refineries, offshore platforms, and pumping stations
• Water & Wastewater: Pump stations and treatment plant power systems

Marine & Offshore

• Shipboard Power Systems: Feeder and generator protection for vesselsABB
• Offshore Platforms: Power distribution protection in harsh offshore environmentsABB

Specialized Applications

• Railway Electrification: Traction power substation feeder protection
• Data Centers: Backup power and UPS feeder protection
• Retrofit Projects: Legacy system upgrade with modern protection and communicationABB
• Arc‑Fault Protection: Fast busbar protection in air‑insulated switchgear