GE UR8CH 8-Channel CT VT Input Module (Multilin UR Series)
- Product Code: UR8CH
- Availability: In Stock
GE UR8CH 8-Channel CT/VT Input Module (Multilin UR Series)
Manufacturer: GE Multilin / Baker Hughes
Model: UR8CH
Series: Multilin UR (Universal Relay)
Type: 8-Channel CT/VT (Current/Voltage Transformer) Input Module
Function: Precision AC current/voltage sensing for power system protection & metering
1. Overview
The GE UR8CH is a **high‑precision 8‑channel CT/VT input module** for the GE Multilin UR series protection relays. It directly interfaces with 3–1 A/5 A phase CTs and 1/5 A ground CTs, capturing AC current and voltage signals for accurate metering, fault detection, and protective relaying. Hot‑swappable and built for high noise immunity, it ensures reliable performance in harsh substation environments.
2. Technical Specifications
• Channels: 8 isolated CT/VT input channels
• CT Ratios: 3–1 A / 5 A phase CTs; 1/5 A ground CTs
• Accuracy Class: 0.2S (high precision)
• Input Current: 40 mA (nominal)
• Isolation: ≥2.5 kV RMS (channel‑to‑channel/ground)
• Operating Temp: -40°C to +70°C
• Dimensions: 152.4 × 177.8 × 38.1 mm (6”×7”×1.5”)
• Weight: ~1.15 kg
• Protection Class: IP20
3. Key Features
• 8 Isolated CT/VT Inputs: For phase and ground current monitoring
• High Accuracy (0.2S): Precise measurement for metering & protection
• Wide CT Compatibility: Supports standard 1 A/5 A CT ratios
• Hot‑Swappable: Replace without shutting down the UR relay
• Enhanced Diagnostics: Analog signal integrity verification
• UR Backplane Compatible: Direct plug‑in installation
4. Applications
• Power Substations: Feeder, transformer, and motor protection
• Industrial Plants: Overcurrent, short‑circuit, and ground fault protection
• Utility Systems: High‑accuracy metering and fault recording
• Renewable Energy: Grid‑tie monitoring and protection
GE © UR8CH 8-Channel CT/VT Input Module (Multilin UR Series)