Description

GE Multilin URGHH UR-GHH Universal Relay Hardware Module

Configured for digital protection and control execution in GE Multilin Universal Relay (UR) Series platforms, the GE Multilin URGHH (URGHH Hardware Module) provides direct physical/electrical execution within modular protection relay architectures. The module supports configurable CT/VT acquisition, digital I/O processing, communication interfaces, and programmable protection logic functions.

Hardware Specifications

Parameter	Specification
Model	URGHH
Brand	GE Multilin
Weight	2 lb
Dimensions	6.5 in L x 6.5 in W x 1.75 in H
Operating Temp	-40 deg C to +60 deg C (-40 deg F to +140 deg F)
Power Consumption	Depends on configured UR hardware assembly
Device Type	Microprocessor-based Digital Protection & Control Relay Module
Platform	GE Multilin Universal Relay (UR) Series
System Architecture	Modular chassis with field-replaceable CPU, power supply, I/O, and CT/VT modules
Control Logic Engine	FlexLogic programmable logic engine
Power Supply Options	110-250 VDC / 110-230 VAC or 24-48 VDC hardware options
CT Inputs	1 A / 5 A secondary rated current
VT Inputs	60-300 VAC secondary rated voltage
Digital Inputs	Optically isolated digital inputs
Relay Outputs	Form-A / Form-C latching and fast-acting relay outputs
Communication Protocols	IEC 61850, Modbus RTU/TCP, DNP3.0, IEEE 1588 PTP
Ethernet Interfaces	Redundant 10/100Base-T RJ45 or 100Base-FX fiber ports
Network Functions	PRP and HSR support
Front Interface	Graphical display, programmable LEDs, local control keys
Enclosure Protection	IP54 front panel, IP20 rear terminals
Software Interface	EnerVista UR
Certifications	CE, UL/cUL, IEEE C37.90, IEC 60255 series

GE Multilin UR Series Communication and Control Architecture

The URGHH operates as part of the GE Multilin Universal Relay modular hardware environment. The architecture uses replaceable functional modules for processing protection algorithms, measurement acquisition, communication handling, and local control execution.

The platform supports deterministic network communication through IEC 61850, Modbus, DNP3.0, and IEEE 1588 Precision Time Protocol. Ethernet options include redundant copper and fiber interfaces with PRP/HSR network redundancy support.

Firmware flash compatibility is managed through the EnerVista UR software environment, allowing supported configuration files and firmware packages to be applied according to the installed UR hardware configuration.

Frequently Asked Questions

Q: Can the URGHH module operate as a standalone protection relay?
A: No. The URGHH is a hardware configuration/module variant within the GE Multilin Universal Relay platform and requires integration with the corresponding UR chassis assembly and configured system modules.

Q: What type of field wiring interfaces are supported?
A: The Universal Relay hardware architecture supports CT/VT secondary inputs, optically isolated digital inputs, relay output contacts, and communication interfaces through the installed module configuration.

Q: Does the module support redundant communication networks?
A: The UR platform supports redundant Ethernet configurations including PRP and HSR functions when compatible communication hardware is installed.

Field Installation Guidelines

• Install the module only within the designated GE Multilin Universal Relay chassis position defined by the hardware configuration.
• Verify CT and VT secondary wiring polarity before energizing protection circuits.
• Separate communication wiring from high-voltage switching conductors to reduce electrical interference.
• Use shielded communication cables where required by the installation environment and terminate cable shields according to site grounding practices.
• Confirm rear terminal connections are mechanically secured before applying auxiliary power.
• Verify installed firmware compatibility with the configured UR hardware modules before commissioning.
• Maintain required enclosure protection levels after panel installation and wiring completion.

Specifications

• Brand: General Electric

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems