The GE H201Ti is a next-generation Dissolved Gas Analysis (DGA) monitor from GE’s Mark IV series, specifically engineered for real-time transformer health assessment through oil chromatography. This intelligent diagnostic device continuously analyzes 8 key gas parameters (H₂, CO, CH₄, C₂H₂, etc.) with 0.1ppm detection sensitivity, providing early warning of insulation degradation and thermal faults in power transformers. The H201Ti integrates GE’s patented Gas Separation Membrane technology, achieving 99.8% measurement repeatability under varying oil temperatures from -30°C to +80°C.
As part of GE Grid Solutions’ predictive maintenance ecosystem, this ruggedized monitor supports IEC 61850 MMS and DNP3 protocols for seamless integration with SCADA systems. The GE H201Ti features 256MB non-volatile memory storing 5 years of trending data, enabling machine learning-based fault pattern recognition through GE’s Predix™ analytics platform. Its IP67-rated stainless steel housing withstands harsh substation environments while maintaining ±0.5% FS accuracy across 25-year service life.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | H201Ti |
| Manufacturer | GE |
| Product Type | Transformer DGA Monitor |
| Detected Gases | H₂, CO, CH₄, C₂H₂, C₂H₄, C₂H₆, CO₂, O₂ |
| Measurement Range | 0-5000ppm (H₂), 0-10000ppm (CO₂) |
| Accuracy | ±0.5% FS or ±1ppm (whichever greater) |
| Response Time | <15 minutes (90% step change) |
| Communication | IEC 61850, DNP3, Modbus TCP |
| Power Supply | 85-264VAC/24-48VDC (dual input) |
| Operating Temp | -40°C to +85°C |
| Enclosure | 316L Stainless Steel (IP67) |
| Dimensions | 450×350×150mm |
| Weight | 12.5kg |
| Certifications | IEEE C57.104, IEC 60599 |
Key Features and Advantages:
Advanced gas separation: The GE H201Ti utilizes thermal conductivity detectors with auto-calibration, eliminating cross-sensitivity between methane and ethylene. Its heated sample line maintains 60°C oil temperature during extraction to prevent gas recombination.
Smart diagnostics: Embedded Duval Triangle and Rogers Ratio algorithms automatically classify fault types (partial discharge, overheating, arcing) with 95% confidence intervals. The 4-20mA analog outputs provide real-time gas concentration signals for legacy control systems.
Cybersecurity readiness: Hardware-encrypted communication meets NERC CIP-011 requirements. The removable SD card enables offline data retrieval without network exposure. Automatic baseline correction compensates for sensor drift caused by aging.
Application Areas:
The GE H201Ti is indispensable in:
- Utility substations: 500kV+ transformer banks protection
- Industrial plants: Rectifier transformer condition monitoring
- Renewables: Offshore wind farm step-up transformers
- Transportation: Electric railway traction power systems
In hydroelectric plants, this monitor detects cellulose insulation breakdown in Kaplan turbine generators 6-12 months before conventional methods. It prevents unplanned outages in mission-critical facilities like data centers and hospitals.
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