GE HYDRAN 201Ti

Description

GE HYDRAN 201Ti

Technical Specifications:

• Measured Gases: Hydrogen (H2), Carbon Monoxide (CO), Carbon Dioxide (CO2), Methane (CH4), Acetylene (C2H2), Ethylene (C2H4), Ethane (C2H6), Oxygen (O2), Nitrogen (N2) as reference

• Measurement Technology: Photoacoustic spectroscopy (PAS) with infrared source

• Detection Limits: 1 ppm for hydrogen; 2-5 ppm for hydrocarbon gases

• Accuracy: ±10% of reading or ±2 ppm, whichever is greater

• Repeatability: ±5% of reading at 100 ppm concentration

• Oil Temperature Range: 40°C to +120°C

• Ambient Temperature: 40°C to +55°C operating range

• Power Supply: 85-264V AC, 50/60 Hz or 125-375V DC

• Enclosure: NEMA 4X (IP66) stainless steel housing

Functional Features:

• Continuous 24/7 unattended monitoring with no carrier gas required
• Automatic oil sampling from transformer main tank or conservator
• Multi-gas analysis with individual concentration reporting
• IEEE and IEC dissolved gas ratio interpretation algorithms
• Rate-of-change alarming for rapid fault detection
• Historical trending with minimum 10 years of data storage
• Remote communication via RS-232, RS-485, or Ethernet
• Relay outputs for local alarm and trip indication

Application Scenarios:

• Critical power transformer monitoring in substations
• Generator step-up transformer condition assessment
• Industrial plant main supply transformer surveillance
• Renewable energy collection transformer monitoring
• Data center backup transformer predictive maintenance
• Railway traction transformer fault detection

Performance Parameters:

• Analysis Cycle Time: 4 hours standard; configurable down to 1 hour

• Data Storage: 100,000 measurement cycles with timestamp

• Mean Time Between Failures: Greater than 80,000 hours

• Calibration Stability: 12 months between calibrations

• Oil Consumption: Less than 1 liter per year for sampling loop

Structural Characteristics:

• Wall-mount stainless steel enclosure with viewing window
• Internal oil circulation pump with stainless steel plumbing
• Photoacoustic measurement cell with gold-plated reflectors
• Membrane-based oil-to-gas extraction system
• Touchscreen display for local indication and configuration

Working Principle: The HYDRAN 201Ti uses photoacoustic spectroscopy technology. A small volume of transformer oil is circulated through the analyzer. Dissolved gases permeate through a semi-permeable membrane into a measurement chamber. Modulated infrared light at specific wavelengths passes through the chamber, heating the gas molecules. The heating causes periodic pressure waves (sound) detected by sensitive microphones. The amplitude of the acoustic signal is proportional to the gas concentration. By using different infrared wavelengths, the analyzer distinguishes between hydrogen, methane, and other hydrocarbon gases.

Installation Requirements:

• Mount within 10 meters of the transformer oil sampling valve
• Install oil supply and return lines with isolation valves
• Connect to reliable AC power source with UPS backup
• Provide communication cabling to control room or SCADA system
• Ensure ambient temperature remains within specified operating range

Usage Precautions:

• Perform initial calibration with certified gas standards after installation
• Check oil lines monthly for leaks or air bubbles
• Replace membrane separator annually or per manufacturer recommendation
• Verify alarm thresholds match transformer manufacturer guidelines
• Do not bypass safety interlocks on oil sampling system