General Electric URRHH Electrical protective devices

General Electric URRHH Product Overview

The GE URRHH is a high-performance electrical protection device designed for industrial and utility applications. It integrates advanced monitoring, protection, and control functionalities to ensure safety and reliability in power distribution systems.

Key Technical Parameters

1. Rated Voltage:
   • Operational Voltage Range: 400V AC to 38kV AC (varies by model).
   • Frequency: 50/60 Hz.
2. Current Ratings:
   • Continuous Current: Up to 4000A (adjustable based on configuration).
   • Short-Circuit Breaking Capacity: 65 kA to 100 kA (IEC/ANSI standards).
3. Protection Functions:
   • Overcurrent Protection (Instantaneous & Time-Delayed).
   • Ground Fault Detection.
   • Phase Imbalance Protection.
   • Under/Over Voltage & Frequency Protection.
4. Communication & Control:
   • Interfaces: Modbus RTU, Ethernet/IP, IEC 61850 protocol.
   • Remote Monitoring: Compatible with GE’s Predix IoT platform for real-time diagnostics.
5. Mechanical & Environmental:
   • Enclosure: IP65-rated for dust/water resistance.
   • Operating Temperature: -40°C to +70°C.
   • Certifications: IEC 60947, UL 508, CE.

Core Features & Functions

1. Advanced Protection:
   • Multi-stage trip settings for precise fault isolation.
   • Arc flash mitigation technology to enhance personnel safety.
2. Smart Grid Integration:
   • Supports bidirectional communication for grid automation.
   • Energy usage analytics via embedded metering (kWh, kVArh, etc.).
3. User-Friendly Configuration:
   • LCD display with intuitive menu for parameter adjustments.
   • USB/local HMI port for offline programming.
4. Durability:
   • Robust construction for harsh environments (e.g., oil & gas, mining).
   • Vibration-resistant design per IEEE C37 standards.

Applications

• Industrial power distribution panels.
• Renewable energy systems (solar/wind farms).
• Data centers and critical infrastructure.
• Utility substations and transformers.