Hydrogen online monitoring system in transformer oil
IN-201D Online monitoring system for hydrogen gas in transformer oil
System Introduction
IN-201D Transformer rapid hydrogen online monitoring systemIt consists of hydrogen sensor, data acquisition and control, communication and auxiliary parts. Installed on or near the body of oil-immersed power transformers (or reactors, bushings, transformers, etc.), it can automatically monitor the dissolved hydrogen content in the transformer oil on a continuous or periodic basis without the need for degassing modules and is capable of realizing a rapid response to dissolved hydrogen.
System Features
Highly integrated in one-piece structure, it hangs directly on the transformer body and does not require power outage for installation.
Sensors do not require periodic calibration, and sensor zero drift is automatically corrected before each measurement.
No degassing is required and dissolved hydrogen can be detected directly in the oil, making it maintenance-free for the entire life cycle.
Equipment parameters
| Measurement type | H₂ | Optional Features | Microwater/core/clamp/oil temperature/oil pressure |
| Measuring principle | Palladium-Nickel Alloy | Measurement range | 5 ~ 5000 μL/L |
| response time | ≤ 30 min | Measurement accuracy | ±20% or ±5 μL/L |
| Measurement repeatability | RSD ≤ 3% | protection class | IP55 |
| Mainframe power supply | AC220V ±10% | communication protocols | Modbus or DL/T860 |
| environmental adaptation | Ambient temperature: -40℃ ~ +70℃; Ambient humidity: 0 ~ 95% (no condensation) | ||
| Mechanical durability | 5 ~ 17 Hz, 0.1″ bimodal displacement; 17 ~ 640 Hz, 1.5 G peak-to-peak acceleration; wind speed ≤ 35 m/s | ||
