GE UR8NH CT/VT signal processing module

GE UR8NH CT/VT signal processing module

Specific Parameters​

Core and Function Parameters​

Product Type CT/VT Signal Processing Module (Current/Voltage Transformer Signal Conversion Module)​

Manufacturer GE (GE Multilin)​

Model UR8NH​

Series Multilin UR Series (Universal Relay Series)​

Core Functions Analog Signal Acquisition, Current/Voltage Signal Conversion, Data Transmission, Hardware Diagnosis​

Compatible Systems GE Mark VI/Mark VIe Turbine Control Systems, UR Series Universal Relay Systems​

Input Channels 8 Standard CT Inputs, Supporting Up to 24 Analog CT/VT Signal Expansion​

Compatible Transformers CT Rated Current 1A or 5A, VT Rated Voltage 50-240V AC​

Signal Processing Analog Signal Conversion, Fast Sampling, Digital Signal Output​

Protection Functions Signal Validity Monitoring, Overcurrent Withstand Protection​

Diagnostic Functions Hardware Health Diagnosis, CT/VT Input Circuit Monitoring, Signal Abnormality Diagnosis, Continuous Self-test During Startup and Operation​

Communication Interface Internal System Backplane Bus Interface​

Supported Protocols IEC 61850, Modbus​

Installation Method 19-inch Rack Plug-in Installation (4U Height)​

Certification Standards Certifications Related to Industrial Power Equipment​

Status Indication Independent Indicators for Channel Signal Status, Module Operation Status, Fault Alarm​

Electrical and Performance Parameters​

Power Supply Voltage 125-250V DC or 100-240V AC​

Power Frequency 50/60Hz​

Power Consumption Maximum 30W​

CT Continuous Rated Current 20A​

CT Thermal Withstand Current 100A/1s​

VT Continuous Rated Voltage 300V AC​

Frequency Measurement Range 40-70Hz​

Current Measurement Accuracy ±0.2% of Reading​

Voltage Measurement Accuracy ±0.25% of Reading​

Sampling Rate 64 Samples per Cycle​

Data Resolution 16-bit​

Response Time Typical 2ms​

Communication Rate Up to 10Mbps​

Isolation Level Electrical Isolation ≥1500V AC Between Channels and Backplane Bus​

Physical and Environmental Parameters​

Overall Dimensions 19-inch Rack Compatible, 4U Height (Approx. 6”×7”×1.5”)​

Weight Approximately 1.15kg​

Operating Temperature Range -40°C to 60°C​

Storage Temperature Range -40°C to 80°C​

Relative Humidity Up to 95% (non-condensing, no dew)​

Housing Material Industrial-grade Flame-retardant Housing​

Vibration Resistance Complies with Industrial Power Equipment Vibration Standards​

Shock Resistance Complies with Industrial Power Equipment Shock Standards​

Product Performance​

Dual-precision measurement design with ±0.2% current accuracy and ±0.25% voltage accuracy, ensuring accurate and reliable power system parameter acquisition​

High-speed sampling of 64 samples per cycle + 2ms fast response, real-time capturing signal changes to ensure timely execution of protection and control commands​

Supports 8 standard CT inputs and 24 analog signal expansion, compatible with 1A/5A CT and multi-range VT, adapting to different power system configurations​

Integrates continuous self-test during startup and operation, real-time monitoring of hardware health and signal validity with timely fault warning​

Seamless compatibility with GE Mark VI/VIe control systems and UR series relays, stable data transmission through backplane bus with excellent compatibility​

19-inch rack standardized installation and plug-in design facilitate system integration and maintenance with high operation and maintenance efficiency​

Wide operating temperature range of -40°C to 60°C + high-level electrical isolation, resisting harsh industrial environments and electromagnetic interference with strong stability​

Supports IEC 61850 and Modbus protocols, enabling access to different monitoring platforms with high data interaction flexibility​