Description
GE Multilin UR6UH CPU & Communication Module
The GE Multilin UR6UH is a sophisticated CPU and Communication processor module belonging to the Universal Relay (UR) platform. It serves as the computational core for high-end protection, control, and monitoring devices in power distribution and transmission networks.
Product Introduction
The UR6UH Module provides the necessary processing power to execute complex protection algorithms while simultaneously managing high-bandwidth communication tasks. As a part of the modular UR family, the GE UR6UH is designed for reliability in harsh substation environments, offering advanced networking capabilities such as support for redundant Ethernet architectures and high-precision time synchronization.

GE MULTLIN UR6UH
Technical Specifications (Datasheet)
The following data highlights the core technical capabilities of the UR6UH module:
| Parameter | Specification |
| Processor Type | High-performance 32-bit RISC |
| Communication Interface | 10/100/1000 Mbps Ethernet (Configuration dependent) |
| Supported Protocols | IEC 61850 (Ed. 1 & 2), Modbus TCP/IP, DNP 3.0, IEC 60870-5-104 |
| Redundancy Protocols | PRP (Parallel Redundancy), HSR (High-availability Seamless Redundancy) |
| Time Synchronization | IEEE 1588 (PTP), IRIG-B, SNTP |
| Cyber Security | Role-Based Access Control (RBAC), NERC® CIP compliant features |
| Mounting | Dedicated CPU Slot in UR Chassis (Slot A) |
| Country of Origin | Canada (GE Grid Solutions) |
Technical Description & Features
The UR6UH acts as the central intelligence of the relay chassis, coordinating data from I/O modules and executing the user-defined FlexLogic™.
- Integrated Gateway: Functions as a communication bridge, allowing legacy devices to interface with modern IEC 61850 substation networks.
- Large Data Storage: Equipped with extensive non-volatile memory for storing high-resolution oscillography (COMTRADE format) and thousands of sequence-of-events (SOE) logs.
- High-Speed Processing: Capable of sub-cycle protection execution, ensuring rapid isolation of electrical faults.
- Advanced Networking: Optimized for peer-to-peer GOOSE messaging, enabling fast inter-relay communication for station-wide interlocking schemes.
Maintenance & Usage Instructions
- Hardware Installation: The module should only be inserted into the designated CPU slot. Ensure the chassis power is off before removing or inserting modules to prevent hardware damage.
- Firmware Management: The UR6UH allows for field firmware upgrades via the EnerVista™ UR Setup software to maintain compatibility with the latest security patches.
- Environmental Monitoring: The module includes internal temperature sensors that can be monitored to ensure the substation cabinet cooling is sufficient.
Recommended Similar Models
For system expansions or alternative configurations within the GE Multilin UR series, consider these related modules:
- GE UR6AH: A standard CPU/Communication module typically used for basic networking requirements.
- GE UR6NH: An advanced CPU module often selected for systems requiring specialized encryption or enhanced security protocols.
- GE G60: A complete Generator Protection Relay that utilizes the UR6 series CPU for its core processing.
- GE T60: A Transformer Protection System that shares the modular architecture and communication backbone.
- GE C60: A Breaker Management and Control Relay designed to integrate seamlessly with the UR6UH module.
Would you like me to clarify the specific differences in Ethernet port options (Fiber vs. Copper) available for the UR6UH?
