GE H201Ti Single Gas Monitor

The GE H201Ti single gas monitoring device is a high-performance equipment used for monitoring gas faults in transformers. It has functions such as high precision, continuous monitoring, early warning, and remote monitoring, and is suitable for health monitoring and predictive maintenance of small and medium-sized transformers.

Core functions
Continuous monitoring of dissolved gases in oil (DGA)
Real time monitoring of key fault gases such as hydrogen (H ₂), carbon monoxide (CO), acetylene (C ₂ H ₂), and ethylene (C ₂ H ₄) in transformer oil through composite gas sensors, providing single ppm level readings with an accuracy of ± 5% FS.
The sensor adopts fuel cell technology, with a response rate of 100% to hydrogen gas (typical fault gas), covering all major fault types such as transformer overheating and arcing.
Early warning of faults
Support local and remote alarm settings, triggering an alarm immediately when gas concentration or rate of change exceeds a preset threshold to avoid equipment damage and power outages.
Built in full system self check and self diagnosis functions, capable of recording data and major events within one year, assisting in fault tracing.
Remote monitoring and data management
Supports Modbus or Hydran protocol communication through RS-485 interface, allowing remote viewing of gas readings and trends.
Compatible with GE Perception ™ Software that enables data downloading, trend analysis, and centralized management of multiple devices.
Technical Parameter
Parameter specifications
Input voltage 24 VDC or 230 VAC (optional)
Output signal 4-20 mA or Modbus RTU/TCP
Measurement range H ₂: 0-2000 ppm, CO: 0-5000 ppm
Response time ≤ 3 minutes (90% full scale)
Working environment temperature -20 ℃ to+60 ℃, humidity ≤ 95% RH
Protection level IP20 (required to be used with a matching cabinet)
Data storage 256 MB internal storage+32 GB SD card expansion

Application scenarios
Monitoring of small and medium-sized transformers
Suitable for distribution transformers with voltage levels of 110 kV and below, directly connected to the dissolved gas monitoring valve of the transformer through single valve installation, without the need for additional pipelines or pumps.
Typical application cases: Box type transformers for wind farms, backup power transformers for data centers, and distribution transformers for industrial parks.
Predictive Maintenance
By continuously monitoring changes in gas concentration, predicting transformer failures (such as cardboard overheating, insulation aging, arc discharge) 3-6 months in advance, unplanned downtime can be reduced by more than 70%.
Compatible with IEEE C57.104 standard, the monitoring results can be directly used for transformer health status assessment.

unmanned substation
Support remote monitoring and alarm functions, reduce on-site inspection frequency, and lower operation and maintenance costs.
Combining GE Perception ™ Software that can achieve centralized management of data from multiple sites and enhance the intelligence level of the power grid.
User Evaluate
Advantage feedback
Strong stability: Operating continuously for 5 years without any faults at a substation of Southern Power Grid, with a sensor lifespan of over 8 years.
Easy installation: Single valve design, installation can be completed within 1 hour without the need for professional tools or calibration.
Reliable data: Compared with laboratory chromatographic analysis results, the error is ≤ 5%, meeting the requirements of the power industry.
Potential Shortcomings
Low protection level: The IP20 design requires a matching cabinet for use and is not suitable for direct outdoor installation.

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