Transformer oil dissolved gas analysis (DGA) is the most trusted method for early fault diagnosis of oil-immersed power transformers. As the core instrument for DGA testing, the stability, anti-interference capability, and detection accuracy of the gas chromatograph directly determine the reliability of test data.
The MOEORW-WEP70 Transformer Oil Chromatography Analyzer delivers outstanding performance in ultra-low baseline noise and high-precision DGA detection. Its superior performance is built on optimized structural design, high-grade materials, and precise control technologies.
Key Technologies Behind High Precision & Low Interference
1. Optimized Thermal & Flow Control System
The instrument uses an 8-channel independent temperature control system with precision up to ±0.1℃ and supports 16-stage programmable heating. The column oven features an automatic rear door for fast, stable heating and cooling.
Precise mechanical valve control ensures stable flow rates for carrier gas, hydrogen, and air. Stable temperature and flow conditions effectively eliminate baseline drift and abnormal peak interference.
2. High-Sensitivity Detectors & Anti-Interference Optimization
The MOEORW-WEP70 supports FID, TCD, ECD, FPD, NPD and other high-sensitivity detectors:
FID: Detection limit ≤ 3.0×10⁻¹² g/s
TCD: Sensitivity ≥ 10000 mV·ml/mg
Built-in 24-bit high-resolution AD conversion
These designs suppress electrical noise and baseline jitter, enabling stable detection of trace fault gases such as C₂H₂, H₂, CO.
3. Professional Gas Path & Leak-Proof Sealing
The full gas path uses high-quality stainless steel and anti-leakage connectors. All pipelines pass strict leak detection and purification. High-purity gas (≥99.999%) and multi-stage filtration avoid impurity interference, ensuring stable baselines and accurate peak shapes.
4. Low-Noise Circuit & Electrical Design
Industrial-grade multi-core processors and highly integrated circuits are used. Strict shielding and grounding reduce electromagnetic interference. The 7-inch industrial capacitive touch screen provides stable, interference-free human-machine interaction.
5. Standardized Assembly & Clean Production
Detectors, injectors, and chromatographic columns are assembled in a clean environment to avoid dust and particle interference. Each unit is fully calibrated before delivery to ensure consistency and reliability.
Conclusion
With optimized temperature control, high-sensitivity detectors, interference-resistant gas paths, low-noise circuits, and standardized manufacturing, the MOEORW-WEP70 achieves ultra-low baseline noise and high-precision DGA detection.
It accurately identifies trace dissolved gases in transformer oil, providing reliable data support for transformer condition assessment, fault early warning, and safe operation.
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