Description
Product Overview
The GE UR8LH is a high-precision multifunctional CT/VT input and relay output module under the GE Multilin UR universal relay series. It serves as a core signal acquisition and control execution component for power system protection and industrial automation systems. The GE UR8LH integrates current transformer and voltage transformer signal sampling with relay switching output functions. It collects real-time grid voltage and current signals on-site. It converts analog field signals into standard digital data for upper system analysis. Meanwhile, it outputs reliable relay switch commands to realize power equipment protection and automatic control.
Traditional power signal acquisition modules have obvious functional defects in power grid and power plant applications. Most ordinary modules support only single signal sampling or simple switch output. They feature low measurement accuracy and poor anti-interference capability. Under complex power electromagnetic interference and load fluctuation environments, these modules are prone to data deviation and signal loss. This issue leads to inaccurate power parameter monitoring and delayed protection actions. In addition, conventional modules lack integrated design. They require multiple accessories to complete signal acquisition and control output, increasing on-site wiring complexity and failure risks. As an upgraded integrated module, the GE UR8LH combines high-precision CT/VT sampling and 8-channel relay output in one compact unit. Every GE UR8LH unit undergoes strict precision calibration and full-function aging testing before delivery. It is widely used in power grid monitoring, power plant protection transformation and global industrial spare parts e-commerce procurement.
GE UR8LH
Core Product Features & Competitive Advantages
Modern power system monitoring and equipment protection put forward higher requirements for signal precision and functional integration. Discrete traditional modules can no longer meet the intelligent and high-precision operation demands of power systems. The GE UR8LH is professionally optimized for power industry application scenarios. It integrates multi-channel high-precision signal sampling, stable relay output, multi-protocol communication and industrial-grade anti-interference performance. It greatly improves the integration level and operational reliability of power system front-end signal acquisition and control links.
- Integrated CT/VT Signal Acquisition Design: The GE UR8LH supports 4-channel CT current input and 4-channel VT voltage input. It realizes synchronous sampling of power current and voltage signals. It meets the comprehensive monitoring demands of power grid operating parameters.
- High 0.2S Measurement Accuracy: This module adopts professional power metering-level chip and circuit design. It reaches 0.2S high precision grade. It ensures accurate data support for power metering, parameter analysis and fault judgment.
- 8-Channel Form C Relay Output: Equipped with 8 independent Form C SPDT relay channels. The GE supports flexible switch signal output. It can drive on-site circuit breakers, contactors and protection equipment to complete automatic protection actions.
- Strong Power Environment Anti-Interference Ability: Built-in professional electromagnetic shielding and filter circuits. The GE effectively resists power harmonic interference, voltage surge and electromagnetic noise. It maintains stable signal transmission in high-interference power station environments.
- Multiple Industrial Protocol Compatibility: The GE supports mainstream protocols including Modbus RTU and DNP3.0. It connects seamlessly with GE Multilin UR series relays and third-party industrial control hosts. It realizes efficient two-way data interaction.
- Wide Voltage Adaptive Power Supply: It adapts to 24–250 VDC wide-range operating voltage. It tolerates on-site power voltage fluctuation. It avoids module shutdown or abnormal operation caused by unstable power supply.
- Industrial-Grade Harsh Environment Resistance: Adopts high-temperature resistant and anti-aging industrial components. The GE works stably under extreme temperature and humid conditions. It adapts to long-term vibration and electromagnetic interference in power plant sites.
- Standard Compact Installation Structure: The integrated compact design saves cabinet installation space. It supports standard fixed installation. It simplifies on-site wiring and later daily maintenance work.
- Real-Time Operating Status Monitoring: The GE feeds back sampling status, relay action status and communication link status in real time. It helps staff quickly locate faults and improve maintenance efficiency.
- Ultra-Low Long-Term Failure Rate: All products pass strict factory burn-in aging tests and precision calibration. The GE supports 7×24-hour full-load continuous operation with stable field performance.
GE UR8LH
Detailed Segmented Technical Specifications
The GE strictly complies with GE Multilin UR series industrial standards and power industry high-precision metering specifications. All signal sampling performance, electrical parameters, communication performance and environmental resistance indicators pass professional laboratory testing and long-term field verification. The core parameters are classified in detail below to support accurate model selection, power engineering design and standardized batch procurement.
3.1 Basic Product & System Matching Parameters
The GE is a dedicated integrated CT/VT sampling and relay output module for power system protection and monitoring. It has exclusive compatibility with GE UR series equipment and wide industrial applicability.
- Official Product Model:
- Product Category: Power CT/VT Sampling & Relay Output Integrated Module
- Manufacturer: General Electric (GE)
- Product Series: GE Multilin UR Universal Relay Series
- Core Functions: Power grid current and voltage signal high-precision sampling, data conversion, remote signal transmission and relay protection switch output
- Matching Equipment: GE UR series protection relays, power grid monitoring hosts, industrial PLC systems and power plant automatic control equipment
- Application Scenarios: Power grid substation monitoring, power plant equipment protection, industrial power distribution system control, old power monitoring system upgrading and spare parts strategic reserve
- Executive Standards: GE original factory specifications, power industry 0.2S metering standard, IEC electromagnetic compatibility and power protection safety standards
3.2 Core Signal Sampling & Electrical Parameters
As the core power parameter acquisition unit, the GE has excellent sampling accuracy and stable electrical performance, meeting high-standard power monitoring and protection requirements.
- CT Sampling Channels: 4 independent current transformer input channels, supporting 1A/5A optional input
- VT Sampling Channels: 4 independent voltage transformer input channels, 100–120 VAC rated input range
- Measurement Accuracy Grade: 0.2S high-precision metering level, ensuring accurate power data statistics
- Continuous Current Rating: 50A long-term stable continuous current bearing capacity
- Momentary Current Resistance: 100A instantaneous overload current tolerance
- Operating Voltage Range: 24 VDC to 250 VDC wide adaptive working voltage
- Signal Stability: No data drift or sampling deviation under long-term full-load operation
3.3 Relay Output & Control Parameters
The GE is equipped with multi-channel high-stability relay output units. It provides reliable switch execution signals for power equipment protection and automatic control.
- Relay Output Channels: 8 independent Form C (SPDT) relay channels
- Relay Action Stability: Fast response and accurate switching action, no jitter or misoperation
- Control Ability: Supports driving conventional power switchgear and protection auxiliary equipment
- Channel Isolation: Independent electrical isolation for each relay channel to avoid signal crosstalk
3.4 Communication & Operation Parameters
The GE supports multiple mainstream power communication protocols. It realizes efficient and stable data interaction between on-site sampling equipment and upper monitoring systems.
- Communication Interface: Standard RS-485 high-speed communication interface
- Compatible Protocols: Modbus RTU, DNP3.0 mainstream power industrial protocols
- Data Transmission Mode: Real-time two-way transmission of sampling data and control commands
- Operating Status Feedback: Real-time display of sampling status, relay status and communication fault information
3.5 Mechanical & Installation Parameters
The GE adopts standardized industrial integrated structure. It features compact size and firm structure, adapting to various power cabinet installation environments.
- Installation Method: Standard cabinet fixed installation, convenient for rapid assembly and disassembly
- Shell Material: High-strength flame-retardant industrial shell, anti-corrosion and anti-aging
- Protection Grade: IP52 standard industrial protection grade, dust-proof and splash-proof
- Overall Structure: Integrated modular design, saving internal cabinet space
3.6 Environmental Adaptability Parameters
The GE passes strict extreme environment simulation tests. It can maintain full functional stability in harsh power plant and substation environments.
- Continuous Operating Temperature: -40°C to +70°C full-load stable operation
- Storage Temperature Range: -40°C to +85°C high and low temperature resistance
- Working Humidity Range: 0%–95% RH, non-condensing humid environment adaptation
- Vibration Resistance: Industrial anti-vibration design, tolerating long-term mechanical vibration of power equipment
- Continuous Operation Capacity: Supports 7×24-hour uninterrupted full-load operation all year round
3.7 Factory Testing & Quality Certification
Every GE module is manufactured under GE’s strict power equipment quality control system. Each product completes comprehensive precision testing and performance calibration before delivery to ensure industrial-grade reliable quality.
- Core Testing Items: Full-channel CT/VT sampling precision test, relay action stability test, communication compatibility test, high-low temperature cycle test and long-term aging test
- Quality Inspection Standard: 100% full-function test + full precision calibration + complete test data filing
- Authoritative Certification: CE electromagnetic compatibility certification, power industry safety qualification certification
- Field Reliability: Widely deployed in global power grid and power plant systems with long-term stable operation records
E-commerce Sales Mode & Complete Procurement Advantages
As a core integrated sampling and protection spare part for GE power monitoring systems, the GE adopts standardized, transparent and efficient global industrial e-commerce sales mode. It focuses on power grid equipment maintenance, power plant protection system upgrading and power enterprise spare parts strategic reserve. It provides one-stop standardized procurement and full-cycle professional technical services for power industry users and engineering integrators.
4.1 Standardized Transparent E-commerce System
All GE products adopt unified original factory production and full-process standardized testing. The whole production, precision calibration and warehousing process is fully traceable. E-commerce platforms openly display complete GE datasheets, precision test reports and qualification documents. Customers can verify product authenticity, sampling accuracy and system matching performance online. This transparent sales mechanism effectively avoids refurbished and inferior products. It fully guarantees the precision and stability of power system monitoring and protection equipment.
4.2 Diversified Flexible Procurement Modes
Power equipment emergency maintenance, daily spare parts stocking and power engineering construction have different demands for delivery cycle and procurement quantity. We provide diversified flexible procurement solutions to cover all application scenarios of the GE .
- Emergency Single Unit Spot Procurement: Suitable for on-site emergency replacement of faulty or aging sampling modules. Sufficient global spot inventory supports fast delivery. It helps power enterprises quickly restore power parameter monitoring and protection functions, avoiding grid operation risks.
- Small-Batch Spare Parts Stocking: Ideal for power plants and substations to build daily spare parts inventory. Pre-storing the GE improves on-site fault emergency response speed and reduces equipment maintenance risks.
- Large-Batch Engineering Procurement: Provide exclusive preferential pricing and long-term framework cooperation services for large-scale power grid renovation and power plant system upgrading projects. It effectively reduces overall project procurement costs and shortens system debugging and commissioning cycles.
4.3 Full-Cycle After-Sales Service Guarantee
The GE undertakes core power signal sampling and protection control tasks. Its precision and stability directly affect the safe and economic operation of the entire power system. We provide comprehensive after-sales support to eliminate all customer procurement risks.
- 100% Original Genuine Guarantee: All GE products are brand-new original modules with complete factory test reports. It ensures 100% compatibility and consistent precision with original GE UR series systems.
- Professional Industrial Packaging: Adopt multi-layer anti-static, shockproof and moisture-proof packaging. It protects internal precision sampling circuits from damage during long-distance transportation and storage.
- 24/7 Professional Technical Support: Provide pre-sales model matching consultation, in-sales installation and wiring guidance, and after-sales precision debugging and fault diagnosis services.
- Long-Term Official Warranty Service: Enjoy unified official warranty coverage. Free maintenance and replacement services are provided for non-human-induced quality faults to reduce enterprise operation and maintenance costs.
Main Industrial Application Scenarios
Relying on its 0.2S high-precision sampling, integrated multi-function design and strong industrial environmental adaptability, the GE is widely used in core monitoring and protection links of various power systems.
- Power Grid Substation Monitoring System: Realizes high-precision sampling of substation current and voltage parameters. It provides accurate data support for grid operation monitoring, power metering and fault analysis.
- Power Plant Equipment Protection System: Used for auxiliary equipment and generator set signal monitoring and protection output. It ensures safe and stable operation of power generation units.
- Industrial Power Distribution System: Applied to power parameter monitoring and overload/short-circuit protection of industrial factory power distribution cabinets. It guarantees safe power consumption of industrial production.
- Old Power Monitoring System Upgrading: Replaces low-precision discrete sampling modules. It improves system monitoring accuracy and integration level without overall system reconstruction.
- Power System Intelligent Transformation: Provides high-quality basic signal data for intelligent power grid monitoring and automatic protection systems. It supports intelligent operation and management of power equipment.
GE UR8LH
Product Value & Market Competitiveness
The GE is a high-performance integrated CT/VT sampling and relay output module for power system protection and monitoring. It solves the common pain points of traditional discrete power modules, such as low sampling precision, scattered functions, complex wiring and poor anti-interference performance. It integrates 4-channel CT + 4-channel VT high-precision sampling and 8-channel relay control output. It realizes one-machine multi-purpose, greatly simplifying on-site system configuration and wiring work.
In the global power equipment spare parts e-commerce market, the GE has prominent competitive advantages. It features 0.2S metering-level high precision, wide voltage adaptation, multi-protocol compatibility and industrial-grade harsh environment resistance. Combined with standardized genuine procurement, complete qualification documents and full-cycle professional after-sales services, it is the preferred core spare part for power grid monitoring, power plant protection system maintenance and intelligent upgrading.
