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ABB REM630E_B Motor Protection and Control Device  

1. Key Parameters

• Product Series: Relion 630 (ABB’s premium line for MV/LV protection and control)
• Model Identifier: REM630E_B (enhanced variant for motor-specific protection)
• Core Functions: Motor protection (overload, short-circuit, earth fault), control (start/stop, jog), measurement, event logging, and remote communication
• Applicable Motor Types:
  • Three-phase AC induction motors (squirrel-cage, wound-rotor)
  • Permanent Magnet Synchronous Motors (PMSM, with firmware upgrade)
• Electrical Ratings:
  • Rated Voltage (Uₙ): Up to 36kV AC (MV) / 690V AC (LV), 50/60Hz
  • Secondary Current Input (from CTs): 5A or 1A (configurable)
  • Secondary Voltage Input (from PTs): 100V (phase-phase) / 57.7V (phase-neutral)
• Protection Functions:
  • Overload Protection (49): Thermal modeling (class 5~40, adjustable) to simulate motor winding temperature; prevents overheating from sustained overloads.
  • Short-Circuit Protection (50/51): Instantaneous (50) and inverse-time (51) tripping for phase-to-phase/phase-to-ground faults.
  • Earth Fault Protection (50N/51N): Sensitive residual current detection (IΔn: 0.1A~10A) for ground fault mitigation.
  • Phase Loss/Imbalance Protection (46): Triggers alarm/trip if phase current imbalance exceeds 10%~50% (adjustable).
  • Locked Rotor Protection (48): Detects stalled motors via high current draw (2×~8× rated current, adjustable time delay).
  • Overvoltage/Undervoltage Protection (59/27): Monitors supply voltage to prevent motor damage from voltage anomalies.
  • Optional: Negative Sequence Protection (47), Thermal Overload Backup (49B), and Underload Protection (37).
• Measurement Accuracy:
  • Current/Voltage: ±0.2% of full scale
  • Power (Active/Reactive): ±0.5% of full scale
  • Energy (kWh/kVARh): ±0.5% of full scale
  • Motor Temperature (via RTD input): ±0.5℃ (for PT100/PT1000 sensors)
• Communication Interfaces:
  • 2× Ethernet ports (IEC 61850 GOOSE/MMS, Modbus-TCP)
  • 1× RS-485 port (Modbus RTU)
  • Optional: IEC 60870-5-103, DNP3.0 for legacy system compatibility
• Power Supply:
  • DC: 24V/48V/110V/220V (±20% tolerance)
  • AC: 110V/220V (±15% tolerance, 50/60Hz)
  • Typical power consumption: ≤15W
• Operating Temperature Range: -25℃~+70℃ (-13℉~158℉)
• Storage Temperature Range: -40℃~+85℃ (-40℉~185℉)
• Protection Class: IP54 (front panel); IP20 (when installed in a cabinet); Complies with IEC 62271-202 (MV switchgear) and IEC 61800-5-1 (motor drive safety)

2. Product Features

• Motor-Specific Thermal Modeling: Advanced overload protection (49) uses a dynamic thermal model to mimic real-time motor winding temperature—accounting for start/stop cycles, ambient temperature, and load fluctuations to avoid false tripping while ensuring reliable protection.
• High-Speed Fault Clearance: Short-circuit (50/51) and earth fault (50N/51N) protection with response times ≤10ms minimizes damage to motor windings, bearings, and connected equipment during severe faults.
• IEC 61850 Smart Integration: Supports IEC 61850 GOOSE for fast peer-to-peer control (e.g., interlocking with circuit breakers) and MMS for data exchange—enabling seamless integration into digital substations and smart factory automation systems.
• Comprehensive Diagnostics: Logs up to 1000 fault events, 100 waveform captures, and real-time motor health metrics (current imbalance, temperature, power factor)—facilitating predictive maintenance and root-cause analysis of faults.
• Flexible Control Logic: Configurable via ABB PCM600 software to support diverse motor control schemes (direct-on-line, star-delta, soft starter, VFD integration) and custom interlocks (e.g., emergency stop, process permissives).
• Rugged Industrial Design: Wide temperature tolerance (-25℃~+70℃), IP54 front-panel protection, and anti-vibration performance (IEC 60068-2-6: 50Hz, 5g acceleration) ensure reliability in harsh environments (dust, humidity, vibration).
• Remote Monitoring & Control: Enables remote motor operation (start/stop, jog) and parameter adjustment via SCADA/DCS systems—reducing on-site intervention and improving operational efficiency.

3. Application Fields

• Heavy Industry: Protects and controls large motors for crushers, grinders, and conveyors in mining, steel, and cement plants—withstanding heavy loads and frequent start-stop cycles.
• Process Industry: Safeguards critical motors for pumps, compressors, and mixers in chemical, oil & gas, and pharmaceutical facilities—ensuring process stability and compliance with safety standards.
• Power Generation: Manages auxiliary motors (boiler feedwater pumps, cooling tower fans) in thermal power plants and wind farms—supporting grid stability and efficient energy generation.
• Water & Wastewater Treatment: Controls motors for aerators, sludge pumps, and filtration systems—preventing downtime that could disrupt water purification or wastewater disposal processes.
• Manufacturing Automation: Protects motors for CNC machines, robotic arms, and assembly line equipment in automotive and electronics plants—ensuring precise control and minimizing production interruptions.

4. Precautions

• CT/PT Compatibility: Ensure current transformers (CTs) and voltage transformers (PTs) match the device’s secondary input ratings (5A/1A for CTs, 100V/57.7V for PTs)—mismatched transformers will cause measurement errors or protection failure.
• Thermal Model Calibration: Configure the overload protection (49) thermal class and motor rated parameters (current, power, insulation class) to match the actual motor—incorrect settings may lead to under-protection (motor damage) or over-protection (false tripping).
• Communication Protocol Alignment: When integrating with upper-level systems (SCADA/DCS), confirm compatibility between the device’s protocols (IEC 61850, Modbus) and the system—update firmware via PCM600 if needed to resolve protocol mismatches.
• Power Supply Reliability: Use a dedicated, regulated power supply with surge protection—voltage fluctuations or outages may disable protection functions, risking motor damage during faults.
• Environmental Protection: Install the device in a dust-proof, moisture-proof cabinet in harsh environments; avoid direct exposure to corrosive gases (e.g., sulfur, chlorine) or extreme temperatures beyond the specified range.
• Regular Maintenance: Periodically verify protection settings, test tripping logic via PCM600, and inspect RTD connections (for motor temperature monitoring)—replace the device if it fails self-diagnostics or shows signs of physical damage

The structure and details of the product：

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