Transformer oil spectroscopy online monitoring system
IN-201G PAS Online Gas Monitoring System for Transformer OilTransformer oil spectroscopy online monitoring system

System Components

IN-201G Transformer oil gas online monitoring systemadoptionphotoacoustic spectrumPrinciple, the system consists of oil sample collection unit, oil and gas separation unit, gas detection unit, data acquisition unit, on-site control and processing unit, communication control unit, display module (optional), power supply module, industrial air conditioning, background monitoring and diagnostic analysis software (optional) and other components.

Monitoring Objects

IN-201G transformer oil gas online monitoring system is the main monitoring object is the transformer oil dissolved in a variety of gases, the presence of these gases and their concentration changes can reflect the internal state of the transformer and potential failure. There are seven main gases: hydrogen (H2), methane (CH4), ethane (C2H6), ethylene (C2H4), acetylene (C2H2), carbon monoxide (CO), carbon dioxide (CO2). Core grounding current, moisture (H2O), oxygen (O2) and nitrogen (N2) are also available as options.

Technical Parameter

Degassing method headspace degassing analysis cycle Minimum 1 hour, programmable
Separation method No separation required Detection method photoacoustic spectrum
Carrier gas method Maintenance-free, no gas required data acquisition Automatic Peak Capture, Segmented Gain
Input method Automatic, quantitative communication method RS485 | Ethernet | GPRS
temperature control automatic temperature control communication protocols Modbus, DL/T860
Alarm Methods Sound, light, in situ, remote transmission Operating power AC220V±10%

Monitoring indicators

serial number Monitoring Objects minimum resolution Detection range Detection accuracy
1 Hydrogen (H2) 1 μL/L 2 ~ 2000 μL/L ±2 μL/L or ±30%
2 Carbon monoxide (CO) 1 μL/L 25 ~ 5000 μL/L ±25 μL/L or ±30%
3 Carbon dioxide (CO2) 1 μL/L 25 ~ 15000 μL/L ±25 μL/L or ±30%
4 Methane (CH4) 0.1 μL/L 0.5 ~ 1000 μL/L ±0.5 μL/L or ±30%
5 Ethane (C2H6) 0.1 μL/L 0.5 ~ 1000 μL/L ±0.5 μL/L or ±30%
6 Ethylene (C2H4) 0.1 μL/L 0.5 ~ 1000 μL/L ±0.5 μL/L or ±30%
7 Acetylene (C2H2) 0.1 μL/L 0.5 ~ 1000 μL/L ±0.5 μL/L or ±30%

Process introduction of photoacoustic spectroscopy online monitoring system

Transformer oil spectrum online monitoring system flow chart

Photoacoustic Spectroscopy Online Monitoring System is an advanced device for accurate monitoring of gas composition in equipment oil, widely used in the field of condition monitoring of oil-filled equipment such as power transformers.
When the system works, the oil sample is first extracted from the equipment through the oil extraction port, and the oil sample enters the vacuum degassing device. Under the vacuum environment, the dissolved gas in the oil is separated out efficiently. Subsequently, the separated gas enters the photoacoustic cell through the gas inlet. At the same time, the laser light source emits laser light of a specific wavelength, which irradiates the gas in the photoacoustic cell. The gas molecules absorb the laser energy, resulting in periodic thermal expansion and contraction, which in turn creates a photoacoustic signal.
The detection device next to the photoacoustic pool captures these photoacoustic signals and transmits them to the signal processing module for analysis and processing. The processed signals are sent to the background system in real time through the communication transmission link. The background system will further interpret, store and display the signals, and the staff can intuitively obtain the key monitoring data such as the gas composition of the oil through the background system, so as to timely grasp the internal operating status of the equipment, and provide a scientific basis for early warning of equipment failure and maintenance decisions. After the monitoring is completed, the oil samples can flow back to the equipment through the oil return port to realize the recycling of oil samples.
Note: Other technical specifications can be customized, for details, consult our hotline: 400-181-6499
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