GE Multilin UR9EH High‑Performance CPU Module for UR Series Universal Relays

Description

Technical Specifications

• Manufacturer: GE Multilin (GE Vernova / GE Grid Solutions)
• Model: UR9EH
• Series: UR Series Universal Relays
• Processor: High‑speed 32‑bit industrial RISC processor
• Memory:
  • RAM: 1 MB (volatile, real‑time data storage)
  • Flash: 8 MB (non‑volatile, firmware/configuration storage)
• Power Supply: 24–250 VAC/DC (±10%, universal input)
• Communication Interfaces:
  • Ethernet: 1 × 10/100 Mbps (Modbus TCP, IEC 61850, DNP3)
  • Serial: 1 × RS‑232 (local configuration, diagnostics)
  • Front Port: USB (firmware updates, data logging)
• Data Acquisition: Up to 256 samples per cycle (high‑speed fault detection)
• Operating Temperature: -40°C to +70°C (-40°F to 158°F)
• Storage Temperature: -40°C to +85°C (-40°F to 185°F)
• Humidity: 5%–95% RH (non‑condensing)
• Protection Class: IP30 (dust protection, no water ingress)
• Dimensions (L × W × H): 165 mm × 165 mm × 44 mm (6.5” × 6.5” × 1.75”)
• Weight: 1.36 kg (3 lbs)
• Mounting: Hot‑swap slot (UR‑series chassis, 19” rack‑mount)
• Certifications: CE, UL 508, CSA C22.2, IEC 60255, IEEE C37.90
• Status: Active (in production; supported by EnerVista UR software)

Key Features

1. High‑Speed Real‑Time Processing: 32‑bit RISC processor delivers sub‑millisecond response times for protection algorithms, ensuring fast, accurate fault detection and isolation in power systems.
2. Modular Hot‑Swap Design: Hot‑swap capability allows installation or replacement without powering down the relay chassis, minimizing downtime and maintenance costs.
3. Universal Power Supply: 24–250 VAC/DC wide‑range input supports global power standards, eliminating the need for external power adapters in diverse industrial environments.
4. Multi‑Protocol Communication: Native Ethernet (Modbus TCP/IEC 61850/DNP3) and RS‑232 interfaces enable seamless integration with SCADA, DCS, and asset management systems for remote monitoring, control, and data logging.
5. High‑Speed Data Acquisition: 256 samples per cycle capture granular waveform data for fault analysis, enabling precise post‑fault root‑cause identification and predictive maintenance.
6. Robust Industrial Construction: Rugged metal housing with IP30 protection withstands vibration, dust, and extreme temperatures, ensuring continuous operation in harsh substation and industrial environments.
7. EnerVista UR Software Compatibility: Fully configured and monitored via GE’s EnerVista UR software, enabling intuitive setpoint adjustment, real‑time data visualization, firmware updates, and performance trending.
8. Redundancy Support: Compatible with UR‑series redundant CPU configurations, supporting hot‑standby operation and ensuring uninterrupted protection during primary CPU failure.
9. Extensive Diagnostics & Self‑Testing: Built‑in self‑diagnostics monitor CPU health, memory integrity, and communication status, providing real‑time fault alerts and reducing unplanned downtime.
10. Scalable System Integration: Works with UR‑series I/O modules (analog/digital inputs/outputs, CT/VT modules) to build customized protection and control systems for transformers, generators, motors, and feeders.

Applications

• Power Utilities: Core CPU for UR‑series relays protecting transmission/distribution transformers, generators, and feeders in substations, ensuring grid stability and reliable power supply.
• Power Generation: Deployed in thermal, hydro, and renewable power plants to protect main/auxiliary transformers, generators, and motors, optimizing asset performance and lifespan.
• Industrial Facilities: Protects critical equipment in refineries, petrochemical plants, steel mills, and mining operations, handling high inrush currents and heavy industrial loads.
• Oil & Gas: Safeguards transformers, motors, and switchgear in offshore platforms, pipelines, and refineries, withstanding harsh environmental and electrical conditions.
• Critical Infrastructure: Deployed in data centers, hospitals, airports, and government facilities to protect mission‑critical power assets and ensure uninterrupted power supply.
• Retrofit & Upgrading: Direct replacement for legacy UR‑series CPUs, adding modern digital processing and communication capabilities to existing relay installations without major system redesign.
• Distributed Power Generation: Used in remote or off‑grid power stations to protect generators and distribution networks, ensuring reliable power supply to critical loads.

System Compatibility

• Compatible Relays: UR Series Universal Relays (UR1AH, UR2DH, UR3CH, UR4EH, etc.)
• I/O Modules: UR‑series analog/digital I/O, CT/VT, and RTD modules
• Software: GE EnerVista UR (configuration, monitoring, diagnostics, firmware updates)
• Network Integration: Connects to plant SCADA and enterprise systems via Ethernet/IP, Modbus TCP, or IEC 61850 for remote operation and data analytics