Overview
Configured for generator protection signal processing in the GE Multilin Universal Relay (UR) platform, the GE Multilin UR6GV (UR6GV Generator Protection Relay Module) provides physical and electrical execution for modular protection, control, and monitoring functions.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | UR6GV |
| Brand | GE Multilin |
| Origin | United States |
| Hardware Type | Generator Protection Relay Module / UR Series Configuration |
| System Platform | GE Multilin Universal Relay (UR) Series |
| Protection Functions | Generator differential, stator ground fault, power, voltage, frequency, synchrocheck (configuration dependent) |
| CT Inputs | 1 A or 5 A secondary current transformer inputs |
| VT Inputs | Voltage transformer inputs up to 300 V phase-to-neutral |
| CT Input Burden | Less than 0.1 VA at rated current |
| CT Overload Withstand | 100 A for 1 second, 250 A peak |
| Power Supply Options | 24 – 48 VDC or 125 – 250 VDC / 100 – 240 VAC |
| Communication Interfaces | Ethernet, serial communication, IEC 61850, Modbus RTU/TCP, DNP 3.0 |
| Time Synchronization | IRIG-B, IEEE 1588 PTP (configuration dependent) |
| Mounting | 19 inch rack mounting, 4U UR chassis |
| Operating Temp | -40 deg C to +60 deg C |
| Storage Temp | -40 deg C to +85 deg C |
| Humidity | Up to 95% non-condensing |
| Enclosure Protection | IP40 front panel, IP20 rear terminals |
| Weight | Configuration dependent |
| Dimensions | UR chassis dependent |
| Power Consumption | Configuration dependent, determined by installed modules |
Firmware Flash Compatibility and UR Backplane Communication
The GE Multilin UR6GV operates within the Universal Relay modular architecture and exchanges data through the UR backplane bus. The module configuration supports coordinated protection processing between CPU, power supply, communication, and I/O assemblies.
The UR platform uses firmware-based configuration management, allowing compatible relay software revisions to define protection logic, measurement processing, and communication behavior. In addition, the modular design supports I/O density scaling by combining different input, output, and communication cards according to application requirements.
Frequently Asked Questions
Q: Does the GE Multilin UR6GV operate as an independent protection relay without a UR chassis?
A: No. The UR6GV is a modular hardware configuration within the GE Multilin Universal Relay architecture and requires the corresponding UR chassis, CPU, power supply, and application configuration.
Q: Can the UR6GV support hot-swapping of installed modules?
A: Module replacement procedures depend on the specific UR chassis configuration and application requirements. Operators must follow GE Multilin maintenance procedures before removing or installing modules.
Q: Which communication protocols can be used with the UR6GV configuration?
A: Communication capability depends on installed communication modules and firmware settings. Supported protocols may include IEC 61850, Modbus RTU/TCP, DNP 3.0, and IEC 60870-5-104.
Field Installation Guidelines
- Install the UR6GV within the specified GE Multilin UR chassis slot configuration.
- Verify the complete relay order code before replacement because UR modules depend on hardware options and firmware compatibility.
- Use shielded control wiring for CT, VT, communication, and low-level signal connections where required.
- Connect cable shields according to the site grounding design to reduce electromagnetic interference.
- Separate power wiring from communication and measurement signal cables during panel installation.
- Verify CT polarity, VT phase reference, and terminal assignments before energizing the protection system.
- Confirm firmware compatibility between the CPU module and installed I/O or communication modules before commissioning.
- Perform insulation checks and protection function verification after installation.
