REX010 HESG324426R0001 Protection Relay ABB – spot goods

ABB REX010 HESG324426R0001 Protection Relay

The ABB REX010 HESG324426R0001 is a protection relay designed for electrical systems in industrial and utility applications. It provides critical protection functions for motors, generators, transformers, and distribution networks by monitoring electrical parameters (e.g., current, voltage, frequency) and triggering protective actions during faults such as overloads, short circuits, or phase imbalances. Integrated with ABB’s Relion® 670 series and compatible with systems like System 800xA, this relay ensures operational safety, reduces downtime, and enhances grid stability through advanced algorithms and real-time communication capabilities.

Technical Specifications

Model: REX010 (HESG324426R0001)
Type: Numerical Protection Relay
Input Ratings:

• Current: 1 A or 5 A (configurable), ±2% accuracy.
• Voltage: 100–240 VAC/VDC (operational range).
  Protection Functions:
• Overcurrent (50/51), Earth Fault (50N/51N), Under/Overvoltage (27/59), Frequency Protection (81H/81L).
  Communication Protocols: IEC 61850, Modbus RTU/TCP, PROFIBUS DP.
  Operating Temperature: -25°C to +70°C (-13°F to +158°F).
  Certifications: IEC 60255, UL 508, CE, ATEX (optional).
  Power Supply: 24–250 VDC/100–240 VAC, 15 W max.
  Display: LCD interface with multilingual support.
  Mounting: DIN-rail or panel-mounted.

Key Functional Features

1. Advanced Protection Logic:
   • Configurable protection curves (IDMT, DT, custom) for precise fault detection.
   • Motor-specific features: Stall protection, thermal overload modeling, and restart inhibition.
2. Communication and Integration:
   • Supports IEC 61850 for seamless integration with SCADA, ABB System 800xA, and third-party control systems.
   • Real-time data sharing via Modbus TCP for remote monitoring and diagnostics.
3. Event Recording and Diagnostics:
   • Stores 1,000+ event logs with timestamps and waveform capture for post-fault analysis.
   • Self-monitoring for hardware health, communication errors, and configuration mismatches.
4. User-Friendly Interface:
   • Intuitive LCD menu for local configuration and status checks.
   • Software tools: PCM600 for parameterization and Digsi® 5 for setting management.

Applications

• Industrial Motors: Protection against overload, phase loss, and unbalanced currents.
• Power Distribution: Feeder and transformer protection in substations.
• Renewable Energy: Grid-connected solar/wind farm protection and synchronization.
• Oil & Gas: Critical motor protection in hazardous areas (ATEX-certified models).

Installation and Configuration

1. Hardware Setup:
   • Mount on DIN rail or panel using secure fasteners.
   • Connect current transformers (CTs), voltage inputs, and communication cables.
2. Software Configuration:
   • Use PCM600 to set protection parameters, logic schemes, and communication addresses.
   • Import/export settings via USB or Ethernet using Digsi® 5.
3. Testing:
   • Simulate faults via test mode to validate trip signals and relay responsiveness.

Maintenance and Support

• Firmware Updates: Deploy via PCM600 or USB drive.
• Calibration: Verify CT/VT ratios and accuracy annually.
• Troubleshooting: Utilize event logs and ABB’s Relion® Assist for remote diagnostics.