GE Fanuc|UR8HH|CT/VT Module

Description

• The GE UR8HH is a CT/VT module in the Universal Relay (UR) family for precise current and voltage measurement in power system protection.

Features

• High-accuracy metering
• Modular design
• Fast data sampling
• Flexible configuration

Technical Specifications

General

• Operating temperature: -40°C to 60°C
• Storage temperature: -40°C to 80°C
• Humidity: Up to 95% non-condensing

Power Supply

• Nominal voltage: 125-250 VDC or 100-240 VAC
• Power consumption: 30 W maximum
• Frequency: 50/60 Hz

Current Inputs

• CT rated current: 1 A or 5 A
• Continuous rating: 20 A
• Thermal withstand: 100 A for 1 s
• Accuracy: ±0.2% of reading

Voltage Inputs

• VT rated voltage: 50-240 VAC
• Continuous rating: 300 V
• Accuracy: ±0.25% of reading
• Frequency range: 40-70 Hz

Processing

• Sampling rate: 64 samples per cycle
• Data resolution: 16-bit
• Response time: 2 ms typical

Communication

• Interface: Internal to UR system
• Protocols: IEC 61850, Modbus
• Data rate: Up to 10 Mbps

Physical

• Dimensions: 19” rack, 4U height
• Weight: 7.5 kg
• Mounting: Plug-in module