GE UR8GH Multilin Universal Relay CT VT Module

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    • Product Code: UR8GH
    • Availability: In Stock
    GE UR8GH Multilin Universal Relay CT/VT Module
    Manufacturer: GE / Baker Hughes (Multilin)
    Model: UR8GH
    Series: Multilin Universal Relay (UR) Series
    Type: High‑Sensitivity CT/VT Analog Input Module
    Function: Precision current/voltage acquisition for power system protection, metering, and sensitive ground fault detection
    1. Overview
    The GE UR8GH is a high‑performance CT/VT (Current/Voltage Transformer) input module for the Multilin UR series universal relays. It provides **8 CT inputs** (1 A / 5 A auto‑ranging) and **4 VT inputs** (50–300 V AC), with **10× higher sensitivity** for ground fault detection compared to standard modules. Designed for generator, transformer, and transmission line protection, it delivers high‑accuracy metering, fast fault response, and advanced diagnostics in power generation, T&D, and industrial automation.
    2. Technical Specifications
    • CT Inputs: 8 × 1 A / 5 A (auto‑adapt), 20 A continuous, 100 A 1 s thermal
    • VT Inputs: 4 × 50–300 V AC (nominal)
    • Accuracy: ±0.2% of reading ±0.02% of range
    • Sampling Rate: 256 samples/cycle (4 ms response)
    • Isolation: 2 kV AC RMS (channel‑to‑ground), 1 kV (channel‑to‑channel)
    • Sensitive Ground Fault: 10× more sensitive than standard CT modules
    • Operating Temp: -40°C to +70°C (UR chassis)
    • Storage Temp: -55°C to +85°C
    • Humidity: 5–95% RH non‑condensing
    • Dimensions: 150 mm × 180 mm × 40 mm
    • Weight: ~1.13 kg (2.5 lbs)
    • Certifications: CE, UL, IEC 60255, ATEX
    3. Key Features
    • High‑Sensitivity Ground Fault Protection: Detects low‑level earth faults critical for generator/transformer safety
    • Hot‑Swap & Auto‑Config: Replace without shutdown; auto‑configures in <5 s
    • Advanced Diagnostics: CT/VT open/short, ADC health, gain drift monitoring
    • Conformal Coating: Withstands harsh industrial/offshore environments
    • EnerVista Software Support: Easy setup, monitoring, and fault analysis
    4. Applications
    • Power Generation: Generator stator/neutral current monitoring, 87G differential protection
    • Transmission & Distribution: Line/reactor protection, high‑impedance fault detection
    • Industrial Power: Motor/transformer protection, sensitive ground fault detection in SIS
    • Renewable Energy: Wind/solar farm grid interconnection protection
    GE © UR8GH Multilin Universal Relay CT/VT Module


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