Description
Product Overview
The GE Multilin UR8FV is a CT/VT module hailing from General Electric’s esteemed UR series of universal relays. This series is well – known in the industrial automation and power system control arenas for its intelligent and reliable solutions. The UR8FV is designed to be a crucial component in power monitoring and control setups.
It combines the functions of current transformers (CTs) and voltage transformers (VTs), providing 3 – 1A/5A phase CTs and 1A/5A ground CTs, along with a four – terminal voltage transformer. This integrated design simplifies the installation process and reduces the overall footprint in electrical panels. By accurately measuring current and voltage, it enables precise monitoring and control of AC power lines. This not only helps in maintaining the stable operation of power systems but also significantly enhances the safety of both users and power system equipment.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | UR8FV |
| Manufacturer | General Electric Multilin (GE) |
| Product Type | CT/VT Module |
| Series | UR Series Universal Relays |
| Dimensions | 15.24 cm x 17.78 cm x 3.81 cm |
| Weight | 1.13 kg |
| Power Supply Voltage | 85 – 265VAC / 100 – 300VDC |
| Power Supply Frequency | 50/60 Hz |
| Current Inputs | 1A or 5A |
| Voltage Inputs | 100V or 120V |
| Relay Output Contact Ratings | 10A at 250VAC |
| Number of Outputs | Up to 8 programmable outputs |
| Current Measurement Accuracy | ±1% of reading |
| Voltage Measurement Accuracy | ±0.5% of reading |
| Communication Ports | Ethernet (10/100 Mbps), RS – 232, RS – 485 |
| Operating Temperature | -20°C to +60°C |
UR8FV
Main Features and Advantages
Integrated CT/VT Design
The GE Multilin UR8FV combines the functions of CTs and VTs into one unit. This reduces the need for multiple separate components, saving space in the electrical panel and simplifying the wiring process. It also streamlines installation, making it more efficient for system integrators.
High – Accuracy Measurement
With a current measurement accuracy of ±1% of reading and a voltage measurement accuracy of ±0.5% of reading, the UR8FV provides highly precise data. This accuracy is crucial for accurate monitoring and control of power systems, allowing for better decision – making to optimize system performance.
Enhanced Safety
The module isolates the high – voltage primary side from the control circuitry. This not only safeguards personnel from potential electrical hazards but also improves the quality of the signals being processed, ensuring more reliable operation.
Plug – and – Play Capabilities
The UR8FV features plug – and – play functionality, enabling it to start functioning quickly after installation. This minimizes downtime during system commissioning or when replacing a module, getting the power system back up and running in no time.
Application Field
Power Generation
In power plants, whether they are gas – fired, coal – fired, or hydroelectric, the GE Multilin UR8FV is used to monitor and control the power generation process. It measures the current and voltage of generators, ensuring they operate within safe and optimal parameters. For example, it can detect any abnormal voltage fluctuations in the generator output and trigger appropriate control actions to prevent damage to the equipment.
Substations
At substations, the UR8FV plays a vital role in monitoring and managing the incoming and outgoing power lines. It helps in detecting faults such as overcurrent, overvoltage, or ground faults. By providing accurate data on current and voltage levels, it enables substation operators to take timely corrective measures, ensuring the stable supply of electricity to the grid.
Industrial Manufacturing
Industrial facilities, such as factories producing automobiles, electronics, or consumer goods, rely on a stable power supply for their production lines. The GE Multilin UR8FV is used to monitor the power quality and control the electrical equipment. It can be integrated with PLC – based control systems to ensure that machinery operates smoothly, minimizing production disruptions due to power – related issues.
UR8FV
Related Products
- GE Multilin UR8FH: Another CT/VT module in the UR series. It may have different configurations or additional features compared to the UR8FV, perhaps offering enhanced diagnostic capabilities or different input/output combinations to suit specific application needs.
- GE Multilin UR6LV: A digital I/O module within the UR series. While the UR8FV focuses on CT/VT functions, the UR6LV is mainly for handling digital input and output signals, and they can be used together in a comprehensive power system control setup.
- GE Multilin UR5AH: A transducer I/O module. It has different functionality compared to the UR8FV, dealing with transducer – related input and output, but can be part of a larger system where the UR8FV also contributes to overall power monitoring and control.
- GE Multilin UR9NV: A universal relay module. It might have broader control and protection functions compared to the more focused UR8FV. They can work in tandem, with the UR8FV providing CT/VT data and the UR9NV using that data for more complex control strategies.
- GE Multilin UR6EH: A digital I/O module. Similar to the UR6LV, it is designed for digital signal handling and can be integrated with the UR8FV in a system to manage both analog (through UR8FV) and digital signals.
Installation and Maintenance
Pre – installation preparation: Before installing the GE Multilin UR8FV, turn off the power to the entire system to avoid electrical accidents. Check the compatibility of the module with the existing universal relay system and other associated components. Inspect the module for any visible damage during transit. The installation manual should be carefully read to understand the correct mounting location and wiring requirements. Size 12 American wire gauge (AWG) is commonly used for connections, though the relay can accept up to size 10 AWG.
Maintenance recommendations: Regularly check the UR8FV for any signs of overheating, such as discolored components or abnormal heat. Clean the module periodically to remove dust and debris, as these can affect its performance. Monitor the input and output signals to ensure they are within the normal range. If there are any signal anomalies, refer to the troubleshooting section of the manual. Check the connection points for any signs of looseness or corrosion. Replace any worn – out or damaged parts promptly to maintain the module’s optimal performance.
Maintenance recommendations: Regularly check the UR8FV for any signs of overheating, such as discolored components or abnormal heat. Clean the module periodically to remove dust and debris, as these can affect its performance. Monitor the input and output signals to ensure they are within the normal range. If there are any signal anomalies, refer to the troubleshooting section of the manual. Check the connection points for any signs of looseness or corrosion. Replace any worn – out or damaged parts promptly to maintain the module’s optimal performance.
Product Guarantee
GE Multilin stands firmly behind the quality of the GE Multilin UR8FV CT/VT module. The product typically comes with a comprehensive warranty, often spanning one year or more, depending on the specific terms. During this period, if any manufacturing defects occur, GE will repair or replace the module free of charge. Their global network of technical support teams is available around the clock. Whether it’s providing guidance during installation, helping with configuration, or troubleshooting operational problems, GE’s experts are committed to ensuring the UR8FV operates at its best. With strict quality control measures in place during production, GE demonstrates its confidence in the reliability of this module, reflecting its dedication to customer satisfaction in the industrial automation and power system markets.
