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iPDMD-3000

◆ Measures Acetylene (C₂H₂), Ethylene (C₂H₄), Methane (CH₄), Hydrogen (H₂), Carbon Monoxide (CO), Carbon Dioxide (CO₂), Ethane (C₂H₆) and moisture content. A gas collection box gas monitoring module is available as an option to deliver comprehensive real-time monitoring and early warning for large-scale power transformers.
◆ Provides fault early warning and monitoring for oil-immersed transformers, and performs fault analysis and diagnosis by adopting methods including the David Triangle Diagram Method and the Three-Ratio Method.

Technical Specifications

Operating parameters

ItemSpecification
Power Input220 V AC ±10%, 50 Hz
Power Consumption< 1000 W
Weight< 100 kg
Dimensions1154 mm (H) × 650 mm (W) × 646 mm (D)
Ambient Temperature-40 ℃ ~ +70 ℃
Ambient Humidity10 ~ 95%
Measurement CycleMin. 1 hour, Max. 24 hours
Control ModeAutomatic, menu setting, manual control
Communication InterfaceRS485 / RJ45 / Optical fiber / 4G wireless
Communication ProtocolIEC61850, TCP/IP
Altitude≤ 5000 m
Overvoltage CategoryCategory IV
IP RatingIP55
Insulation Resistance of External Circuit≥ 100 MΩ

Standard measurement error limit

Detected ComponentDetection Range (μL/L)Measurement Error Limit
Hydrogen (H₂)2 ~ 20±2 μL/L or ±30%
20 ~ 1000±30%
Acetylene (C₂H₂)0.2 ~ 5±0.2 μL/L or ±30%
5 ~ 10±30%
10 ~ 50±20%
Methane (CH₄), Ethane (C₂H₆), Ethylene (C₂H₄)0.5 ~ 10±0.5 μL/L or ±30%
10 ~ 150±30%
Carbon Monoxide (CO)25 ~ 100±25 μL/L or ±30%
100 ~ 1500±30%
Carbon Dioxide (CO₂)25 ~ 100±25 μL/L or ±30%
100 ~ 7500±30%
Total Hydrocarbons (C1+C2)2 ~ 10±2 μL/L or ±30%
10 ~ 150±30%
150 ~ 500±20%

1.Gas concentration in oil‌

2.The greater of the measurement error percentage or in μL/L



Authoritative organization certification & testing report




Application Diagram


「Meets A-level product standards and has received recognition and praise from industry customers for its application.」

「Assist customers in timely detecting and monitoring transformer fault gases during equipment operation and inspection, early detection and warning, reducing transformer failure rates, and improving safety operation levels.」

「Upgraded products of gas chromatography and traditional photoacoustic spectroscopy, no need for carrier gas, no gas cross interference, high accuracy, and long-term stability of equipment.」

「For more product information, please consult now」



Application Cases

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◆ Measures acetylene (C₂H₂) and moisture content. It incorporates three independent detection systems to achieve redundant configuration, providing critical real-time monitoring and early warning for large-scale power transformers. ◆ Designed for relay protection and control of oil-immersed transformers, it can independently perform rapid and automatic detection of dissolved acetylene content in transformer oil, as well as equipment fault analysis, diagnosis and early warning.

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