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GE Multilin UR7JV UR-7JV Universal Relay Module

Configured for microprocessor-based protection and control execution in GE Multilin Universal Relay (UR) platforms, the GE Multilin UR7JV (UR7JV Protection and Control Relay Module) provides direct physical/electrical execution for current, voltage, digital input, relay output, and communication functions.

Hardware Specifications

Parameter	Specification
Model	UR7JV
Brand	GE Multilin / GE Grid Solutions
Device Type	Microprocessor-Based Protection and Control Relay Module
Series	Universal Relay (UR) Platform
Mounting Type	19-Inch Rack Mount / Panel Mount, 4RU Height
Operating Temp	-40 deg C to +60 deg C
Power Consumption	Nominal 15-25 W; Maximum 45 W depending on module load
Auxiliary Power Supply	110-250 VDC / 110-230 VAC (50/60 Hz), or 24-48 VDC
Current Inputs	1 A or 5 A CT secondary selectable
Voltage Inputs	50-240 VAC nominal phase-to-neutral
Digital Inputs	Opto-isolated configurable threshold inputs
Output Relays	Form-A / Form-C solid-state and mechanical relay outputs
Ethernet Communication	Single or redundant 10/100Base-T RJ45 or 100Base-FX fiber optic
Serial Communication	RS232 / RS485
Supported Protocols	IEC 61850, DNP 3.0, Modbus TCP/IP, IEC 60870-5-104, Modbus RTU
Time Synchronization	IRIG-B, IEEE 1588 PTP, SNTP
Humidity	5% to 95% non-condensing
Ingress Protection	IP54 front panel, IP20 chassis and terminals

Profinet / EtherNet/IP Deterministic Network and Firmware Compatibility

The GE Multilin UR7JV integrates industrial communication processing within the Universal Relay platform through Ethernet and serial interfaces. The module supports deterministic data exchange requirements for protection and control applications through IEC 61850, DNP 3.0, Modbus TCP/IP, and IEC 60870-5-104 communication protocols.

Firmware flash compatibility is managed through the UR platform software environment, allowing controlled firmware loading and configuration transfer procedures. Network configuration, protection settings, and communication parameters are stored within the relay architecture for coordinated system operation.

The module supports configurable I/O allocation, allowing scaling of current inputs, voltage measurement channels, digital status inputs, and trip output functions according to relay application requirements.

Frequently Asked Questions

Q: What type of power supply inputs are supported by the UR7JV module?
A: The module supports high range auxiliary power inputs of 110-250 VDC or 110-230 VAC at 50/60 Hz, with an alternative low range supply option of 24-48 VDC.

Q: Does the UR7JV provide isolated field input processing?
A: Yes. Digital inputs use opto-isolated circuits with configurable threshold voltage levels for external control signals.

Q: Which communication interfaces are available on the UR7JV?
A: The module supports Ethernet interfaces using RJ45 or fiber optic connections and serial communication through RS232 and RS485 interfaces.

Field Installation Guidelines

• Install the relay module in a compatible 19-inch rack or panel mounting enclosure with adequate mechanical support.
• Verify auxiliary power supply voltage range before energizing the unit.
• Separate CT, VT, control wiring, and communication cables to reduce electromagnetic interference coupling.
• Use shielded communication cables where required by the installation environment.
• Connect cable shields according to the site grounding practice and avoid multiple unintended grounding points.
• Confirm CT polarity, VT phase reference, and terminal identification before commissioning protection functions.
• Maintain proper clearance between high voltage measurement wiring and low-level communication or control wiring.
• Verify firmware compatibility and relay configuration files before performing any software update procedure.

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