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GDFJ-VI Transformer Dissolved Gas Analyzer is a portable gas chromatograph suitable for on-site rapid analysis. It integrates chromatographic detection, analysis and diagnosis in one, as well as micro detector, mini gas source and built-in touch screen computer. It has higher integration, better stability, more delicate shape and more convenient operation than traditional portable oil chromatography. On-site analysis can timely analyze and diagnose transformer fault conditions, making power work simpler and more convenient. The instrument adopts the classical three-detector process, and the analytical data are identical with those of the traditional laboratory chromatograph. The instrument adopts advanced small modular design concept. It has high integration, small size and light weight, which is easy to carry to the site for analysis. It provides timely and accurate data for transformer monitoring and test, and saves a lot of manpower and material resources.
A full analysis of the contents of the seven gas components H2, CO, CO2, CH4, C2H4, C2H6, C2H2 (hydrogen, carbon monoxide, carbon dioxide, methane, ethylene, ethane, acetylene) dissolved in the insulating oil can be completed in one injection. The minimum detection concentration of acetylene is 0.1ppm, and has been successfully applied to many industries and departments such as power supply companies, power plants, transformer plants, large-scale smelting enterprises, and railway power supply sections.
Minimum detection concentration and limit (Unit μL/L) |
|
Component |
Min. detection concentration |
H2 |
2 |
CO |
5 |
CO2 |
10 |
CH4 |
0.1 |
C2H4 |
0.1 |
C2H6 |
0.1 |
C2H2 |
0.1 |
FID (flame ionization detector) |
|
Detection limit |
Mt≤3×10-12g/s (Hexadecane/isooctane) |
Baseline noise |
≤5×10-14A |
Baseline shift |
≤1×10-13A/30min |
Linear range |
≥ 106 |
TCD (thermal conductivity detector) |
|
Sensitivity |
S≥3500mV•ml/mg (conventional); 5000mV•ml/mg (highly sensitive) |
Baseline noise |
≤10μV |
Baseline shift |
≤30μV/30min |
Linear range |
≥104 |
Temperature control index |
|
Temperature control part |
Range |
Column box |
4~ 450ºC above room temperature, accuracy ±0.1ºC |
Packed column injector |
4~ 450ºC above room temperature, accuracy ±0.1ºC |
FID Detector |
4~ 450ºC above room temperature, accuracy ±0.1ºC |
TCD Detector |
4~ 450ºC above room temperature, accuracy ±0.1ºC |
Ni nickel catalyst reformer |
4~ 450ºC above room temperature, accuracy ±0.1ºC |
Other parameters |
|
Dimension |
420*280*300mm |
Weight |
<15kg |
Power supply |
AC220V±10%, 50Hz |
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