ABB REM610 Motor Protection Relay (Relion® 610 Series)

Description

Technical Specifications

Core System & Performance

• Processing Platform: High‑performance microprocessor with real‑time digital signal processingeero
• Sampling Rate: High‑resolution sampling for precise fault detection and measurementeero
• Operating Frequency: User‑selectable 50 Hz / 60 Hz (±5 Hz tolerance)eero
• Measurement Accuracy: Current ±0.5%; derived values ±1.0%eero
• Setting Groups: 2 independent setting groups for operational mode switchingeero
• Disturbance Recorder: Up to 80 seconds of pre/post‑fault waveform recording; COMTRADE format supporteero
• Typical Trip Time: Instantaneous overcurrent ≤ 20 ms; thermal overload ≤ 30 mseero
• Event Logging: 1,000+ time‑stamped events with 1 ms resolutioneero
• Self‑Diagnostics: Continuous hardware/software monitoring with internal fault alarmseero

Power Supply

• Nominal Voltage:
  • AC: 100/110/120/220/240 V AC
  • DC: 24/48/60/110/125/220/250 V DC (universal wide‑range input)
• Power Consumption: < 9 W (quiescent); < 13 W (operating)
• Voltage Ride‑Through: < 50 ms DC interruption without relay reset
• Isolation: Full galvanic isolation between power, I/O, and communication circuitseero

Analog Inputs

• Phase Current: 4 channels, programmable for 1 A or 5 A nominal (CT secondary)eero
• Residual Current: 1 channel for earth‑fault detection (5 A / 1 A)eero
• Thermal Withstand:
  • Continuous: 4 A (1 A nominal) / 20 A (5 A nominal)
  • 1‑second peak: 100 A (1 A nominal) / 500 A (5 A nominal)
• Dynamic Withstand: Half‑wave 250 A (1 A nominal) / 1250 A (5 A nominal)
• Optional RTD Module: 6 galvanically isolated inputs supporting Pt100, Pt1000, Cu10, and PTC thermistors for direct temperature monitoringeero

Digital I/O

• Binary Inputs: 2 standard galvanically isolated 24–250 V DC inputs; 3 additional inputs via optional RTD moduleeero
• Power Outputs (PO): 3 normally‑open heavy‑duty trip contacts (250 V AC / 30 V DC, 5 A)eero
• Signal Outputs (SO): 2 change‑over (Form C) configurable contacts for alarms/statuseero
• HMI: LED indicators for power, fault, and operational status; local pushbuttons for reset and controleero
• Trip Circuit Supervision (TCS): Monitors integrity of breaker trip circuitseero

Communication Interfaces

• Local Port: Front optical RS‑232 for PC configuration (CAP501 software)ABB
• Rear Ports: RS‑485 supporting Modbus RTU, IEC 60870‑5‑103, SPA, LON, ProfibusABB
• Optional: IEC 61850 Ed.1 communication via adapter moduleABB
• Time Synchronization: Digital input for IRIG‑B or external pulse synchronizationeero

Physical & Environmental

• Form Factor: Compact plug‑in unit for 19” rack or flush mounting
• Dimensions: 266 mm (H) × 144 mm (W) × 280 mm (D)
• Weight: ~3.5 kg (relay unit); ~1.8 kg (spare unit)
• Protection Rating: IP54 (front); IP20 (rear terminals)ABB
• Operating Temperature: -25 °C to +70 °CABB
• Storage Temperature: -40 °C to +85 °CABB
• Humidity: 5%–95% RH (non‑condensing)ABB
• EMC Compliance: IEC 61000 series, EN 50081‑2, CISPR 11ABB
• Certifications: CE, IEC 60255, KEMA type test, DNV marine/offshore approvalABB

Functional Features

Comprehensive Motor Protection Functions

• Three‑Phase Overcurrent (50/51): Definite‑time low/high stages; speed switch blocking for startup safetyeero
• Short‑Circuit Protection (50): Instantaneous high‑set stage for phase‑to‑phase faultseero
• Thermal Overload (49): Dual‑time‑constant thermal model; enhanced via optional RTD temperature inputsABB
• Earth‑Fault (51N): Non‑directional sensitive residual current protectioneero
• Negative‑Sequence Unbalance (46): Inverse‑time protection against phase unbalance and open‑phase conditions
• Phase Reversal (46R): Prevents motor damage from incorrect phase sequence
• Undercurrent (37): Loss‑of‑load detection for broken couplings or mechanical failure
• Startup Supervision (66): Cumulative startup time counter; restart inhibit to avoid excessive thermal stress
• Running Stall Protection: Detects mechanical jams during operationABB
• Circuit‑Breaker Failure (62BF): Backup tripping for failed breakers
• Temperature Protection (49/38): Multi‑stage RTD/PTC monitoring for stator, bearing, and winding overheating
• Lockout Relay (86): Latching fault indication for manual reset after critical faults

Control & Monitoring

• Local/Remote Control: Manual trip/reset via HMI or communication commandseero
• Emergency Start: Overrides thermal limits for critical process recoveryeero
• Condition Monitoring: Real‑time thermal level, negative‑sequence current, and temperature trending
• Trip Circuit Supervision: Continuous monitoring of breaker control circuitseero
• Event & Disturbance Recording: Forensic analysis of faults and operational eventseero

Flexibility & Integration

• Plug‑in Design: Hot‑swap capability for minimal downtime during maintenance
• Modular Expansion: Optional RTD module for direct temperature sensingeero
• Multi‑Protocol Support: Seamless integration with legacy and modern SCADA systemsABB
• Marine/Offshore Ready: DNV certification for harsh marine environmentsABB
• Retrofit Compatibility: Easy integration into existing motor control centersABB

Application Scenarios

Industrial Motor Applications

• Pumps & Compressors: LV/HV motor protection in water treatment, oil & gas, and chemical plants
• Fans & Blowers: Industrial ventilation, HVAC, and process air systems
• Mills & Crushers: Heavy‑duty motor protection in mining, cement, and mineral processing
• Conveyors & Drives: Material handling systems in manufacturing and logistics

Utility & Infrastructure

• Distribution Networks: Cable feeder and small transformer protection with thermal overload capability
• Water & Wastewater: Pumping stations and treatment plant motor control
• Municipal Infrastructure: Public works and utility motor applications

Marine & Offshore

• Shipboard Power Systems: Propulsion and auxiliary motor protection on vesselsABB
• Offshore Platforms: Motor protection for drilling, pumping, and processing equipmentABB
• Subsea Systems: Remote motor protection in subsea production facilitiesABB

Specialized Installations

• Retrofit Projects: Upgrade of legacy motor protection systems with modern IED technologyABB
• Isolated Power Systems: Standalone motor protection in remote industrial sites
• Motor Control Centers (MCCs): Compact integration into LV/HV switchgear assemblies