Description
1. Product Title
GE UR9EV – Multilin Universal Relay I/O Module
2. Product Overview
The GE UR9EV is a high-performance Input/Output (I/O) expansion module designed for the GE Multilin Universal Relay (UR) series. As a critical component of the modular UR platform, the UR9EV provides the physical interface between primary power system equipment and the sophisticated protection and control logic of the relay. This module is specifically engineered to handle Voltage (VT) and Current (CT) inputs, as well as digital status signals, allowing the relay to perform high-speed calculations for protection, monitoring, and metering.
The UR9EV addresses the industrial need for flexible, scalable protection systems in substation automation. By populating a Multilin UR chassis with this module, engineers can customize the device to meet the specific requirements of feeders, motors, generators, or transformers. Its robust design ensures accurate data acquisition even in electrically noisy environments, providing the reliability required for utility-grade protection and control.
3. Technical Specifications
- Brand: GE Multilin
- Model: UR9EV
- Warranty: One Year
- Condition: 100% New & Original
- Platform Compatibility: Universal Relay (UR) Series (e.g., F60, G60, L90, T60)
- Input Type: Combined Analog and Digital I/O
- Voltage Inputs: Supports standard VT secondary ratings
- Current Inputs: Supports 1A or 5A CT secondary ratings (application dependent)
- Digital Inputs: High-speed opto-isolated inputs
- Relay Outputs: Form-A or Form-C mechanical or Solid State (SSR) options
- Operating Temp: -40°C to +85°C
- Sampling Rate: 64 to 128 samples per cycle (depending on relay firmware)
4. Key Features & Benefits
- Modular Integration: The UR9EV follows the “plug-and-play” philosophy of the UR family, allowing for easy field upgrades or replacements without the need to replace the entire relay chassis.
- High-Accuracy Metering: Equipped with high-precision converters, the module ensures that the power system data used for protection algorithms is highly accurate, reducing the risk of nuisance tripping.
- Transient Immunity: Designed to meet IEEE and IEC standards for surge and transient protection, the UR9EV maintains signal integrity during lightning strikes or high-voltage switching events.
- Integrated Diagnostics: The module features continuous self-monitoring and reports hardware health to the relay’s main processor, ensuring that any I/O failure is detected before a protection event occurs.
5. Application Scenarios
- Substation Protection & Control: Used in GE L90 or F60 relays to monitor busbar voltages and feeder currents, providing the raw data necessary for distance and overcurrent protection.
- Generator Management: Deployed within a G60 relay to interface with generator CTs and VTs for differential protection and synchronizing checks.
- Industrial Microgrids: Integrated into plant-wide power management systems to provide digital inputs for breaker status and analog inputs for load shedding algorithms.
6. Frequently Asked Questions (FAQ)
- Q: What is the primary function of the UR9EV?
- A: The UR9EV is an I/O module that provides the physical connection points for voltage/current signals and digital inputs/outputs within a GE Multilin Universal Relay.
- Q: Can the UR9EV be used in any GE Multilin relay?
- A: The UR9EV is designed specifically for the Universal Relay (UR) platform (the 7th-generation modular series) and is not compatible with SR-series or older legacy Multilin units.
- Q: Does the UR9EV require separate calibration?
- A: No, the UR9EV is calibrated at the factory. Once installed in a UR chassis, the relay’s CPU manages the scaling and offset parameters based on the system configuration.
GE IS210BPPBH2BMD GE IS420ESWBH3A GE IS420PPNGH1A
