Description
The GE Multilin UR6CH is the 6-slot chassis for the Universal Relay (UR) family. It serves as the physical housing and backplane for various UR series protection and control modules, such as the B30, C60, D60, G60, and L90. The “6CH” version is a compact alternative to the standard 19-inch 10-slot chassis, ideal for installations with limited panel space.
Product Parameters (Datasheet)
- Model Number: UR6CH
- Chassis Size: 6-Slot (Vertical or Horizontal mounting)
- Series Compatibility: All GE Multilin Universal Relay (UR) modules
- Backplane: High-speed internal data bus for inter-module communication
- Dimensions: Approximately 1/2 of a standard 19″ rack width (8.5 inches / 216 mm)
- Construction: Ruggedized steel housing with EMI/RFI shielding
- Grounding: Integrated copper ground bus bar for safety and signal integrity
- I/O Capacity: Supports 1 CPU module, 1 Power Supply module, and up to 4 I/O or Transducer modules
GE UR6CH
GE UR6CH
GE UR6CH
Country of Origin
The UR6CH chassis is manufactured by GE Multilin in Canada, designed to withstand the harsh electromagnetic environments of high-voltage substations.
Application Fields
The UR6CH is the foundation for localized protection and monitoring:
- Substation Retrofits: Ideal for upgrading legacy electromechanical relays where panel space is constrained.
- Small Generator Protection: Housing G60 or G30 modules for small-to-medium power units.
- Industrial Feeder Protection: Supporting F35 or F60 modules in industrial plant distribution centers.
- Capacitor Bank Control: Used with the C30 controller for reactive power management in utility grids.
Product Usage Instructions
- Module Insertion: Slide modules (CPU, Power Supply, and I/O) into the designated slots. Ensure the module is pushed firmly until the backplane connectors click into place.
- Slot Assignment: In the UR series, Slot 1 is typically reserved for the Power Supply, and Slot 2 is for the CPU. Verify your specific relay’s hardware configuration in EnerVista UR Setup.
- Grounding: Connect the rear ground lug to the station ground grid using a low-impedance copper lead. This is critical for the surge protection circuitry within the modules to function.
- Terminal Wiring: Use the orange terminal blocks (CT/VT) and black terminal blocks (I/O) provided with the modules. Ensure CT circuits are never open-circuited while primary current is flowing.
- Panel Mounting: Secure the chassis to the rack or panel using standard M5 or #10 screws. Ensure there is adequate ventilation around the top and bottom of the unit.
Product Technical Description
The UR6CH is a “passive” component, but its backplane is technically sophisticated. It facilitates high-speed synchronization between CT/VT input modules and the CPU, allowing for sub-cycle protection calculations. The 6-slot architecture maintains the same electrical and environmental specifications as the larger 10-slot (UR10CH) chassis, including Seismic Level 1 and 2 ratings. It is designed to minimize “crosstalk” between modules, ensuring that high-speed communication signals are not corrupted by high-voltage transients on adjacent I/O cards.
Q&A (Common Questions)
Q: Can I use 10-slot modules in a 6-slot chassis? A: Yes. All UR series modules (e.g., those from a D60 or B30) are universal and physically fit into both the 6-slot and 10-slot chassis.
Q: Does the chassis come with a power supply? A: No, the UR6CH is the empty metal housing and backplane. The Power Supply (e.g., UR-1HI) must be ordered as a separate module or part of a complete relay assembly.
Q: Can this chassis be mounted horizontally? A: Yes, the UR6CH is designed for both vertical and horizontal mounting, though vertical is most common for space-saving in retrofits.
Q: What is the benefit of the 6-slot over the 10-slot? A: The primary benefit is the physical footprint. It allows for two UR6CH units to be mounted side-by-side in a standard 19-inch rack space, effectively allowing for two separate relays in one rack height.
Similar Model Recommendations
- GE UR10CH (Standard 10-slot chassis)
- GE UR-1HI (High-voltage Power Supply module)
- GE UR-CPU (Central Processing Unit for UR series)
- GE 469-CH (Chassis for the 469 Motor Management series)
- GE SR750-CH (Chassis for the SR750 series)
For technical support or to procure the GE UR6CH, please contact our substation automation specialists.
