Description
Key Technical Specifications
- Model Number: UR1HH
- Manufacturer: GE (General Electric) | Series: Multilin UR / SR489
- Protection Functions: Motor, Transformer, and Generator Protection
- Supply Voltage: 9 to 30 VDC (Auxiliary Power)
- Communication Interface: RS485 with Modbus RTU Protocol
- Analog Inputs: -10V to +10V / -20mA to +20mA
- Analog Outputs: 0V to +10V / 0mA to +20mA
- Resolution: 12-bit Sampling Rate
- Accuracy: 0.1%
- Operating Temperature: -40°C to +85°C
- Enclosure Rating: IP65 (Harsh Environment Ready)
Functional Role & Application Analysis
The GE UR1HH serves as a highly reliable protective relay within the Multilin UR series, specifically engineered for critical power system management. It is designed to solve complex operational pain points in heavy industry: preventing catastrophic motor burnout, ensuring precise fault isolation, and providing real-time diagnostic data to DCS or PLC controllers. By integrating multiple protection algorithms into a single module, it eliminates the need for bulky, discrete relays and reduces panel footprint.
Typical use cases for this module include:
- Oil & Gas Facilities: Protecting large compressors and pumps in harsh, explosive environments where IP65-rated, high-temperature tolerance is mandatory.
- Power Generation: Monitoring wind turbines, solar inverters, and backup generators to ensure grid synchronization and rapid fault clearance.
- Water & Wastewater Plants: Safeguarding critical lift station motors and HVAC systems, utilizing Modbus RTU for seamless integration into existing SCADA networks.
Our Quality Standard & Testing Process
We understand that the cost of an unreliable part is far greater than its purchase price. A failed protection relay during a grid fault can result in severe equipment damage and extended downtime. We have established a rigorous, multi-stage testing process to ensure every UR1HH we ship is 100% functional and accurately calibrated.
- Visual & Component Inspection: Every relay undergoes strict visual inspection to ensure no physical damage, connector wear, or compromised internal components.
- Live System Test: The module is powered up in a live test environment and run continuously to verify stable operation, display functionality, and relay actuation.
- Full-Function Diagnostics: We simulate analog inputs and verify communication port integrity, ensuring Modbus RTU polling and 12-bit resolution accuracy are within 0.1% tolerance.
- Warranty Backing: Only parts that pass all diagnostic tests are approved for shipment and backed by our full 12-month warranty, covering hardware and firmware failures.
GE-UR1HH
Compatibility & Migration Paths
To ensure this UR1HH is 100% compatible with your system, you must check these key compatibility points. Failure to verify this is a common project risk that leads to integration delays.
- Communication Protocol: Confirm your DCS or PLC supports Modbus RTU over RS485. Verify the baud rate and parity settings match your existing network configuration.
- Power Supply Requirements: This unit requires a 9 to 30 VDC supply. Verify your control panel has an appropriate DC power source; it is not designed for direct AC mains power.
- Software Configuration: Ensure you have access to EnerVista LaunchPad software for setting protection curves, configuring I/O, and retrieving event logs.
- Get Expert Help: Unsure about your system’s communication setup or wiring requirements? Contact our technical team today for a free compatibility check before placing your order.
