By analyzing the characteristic gases dissolved in the insulating oil, potential latent faults inside the oil filled equipment can be detected early, and the development status of the faults can be monitored at any time. The use of gas chromatography to analyze dissolved gases in oil is one of the most effective methods for monitoring the safe operation of oil filled electrical equipment. This is because oil filled equipment gradually ages and decomposes under the action of heat and electricity, producing small amounts of various low molecular hydrocarbons, carbon dioxide, carbon monoxide and other gases. The types and severity of internal faults in oil filled electrical equipment are closely related to the composition and gas production rate of these gases. Monitoring the operation status of oil filled equipment to determine its internal faults has become an important means of technical supervision in the power system to ensure the safe, stable and economical operation of the unit.

Analytical chromatograph for dissolved gases in insulating oilequipped withTCD, FID, and high-efficiency methane converter improve the detection sensitivity of each component.
One injection can analyze simultaneouslyNine components: H2, O2, N2, CO, CO2, CH4, C2H4, C2H6, C2H2.
aOil chromatography analyzerIt can be used for both analysis of characteristic gases and detection of gas content.
The chromatographic workstation can automatically diagnose faults in the analysis results.

1. Adopting 4.3-inch touchscreen LCD Chinese display, real-time display of various temperatures and operating conditions
2. Power on self-test, five independent temperature control channels;
3. If any sensor circuit breaks, the instrument will automatically display an alarm;
4. High precision dual stable gas path, capable of installing up to four detectors simultaneously;
5. The four-way external event function supports multi valve switching;
6. Optional electronic flow pressure display system and built-in workstation device.

Analytical chromatograph for dissolved gases in insulating oilTechnical indicators

Hydrogen flame ionization detector（FID）：

1. Temperature control range: Room temperature+5 ℃~300 ℃

2. Detection limit: 0.05ppm (calculated as methane)

3. Linear range: 10⁷

Thermal conductivity detector（TCD）:

1. Temperature control range: Room temperature+5 ℃~300 ℃

2. Sensitivity: 8000mv.ml/mg

3. Linear range: 10⁴

4. Bridge current range: 0-200mA, with load gas cut-off protection

Analytical chromatograph for dissolved gases in insulating oilSpecifications:

1. Dimensions: 555 x 525 x 485 (mm)

2. Input power supply: AC220V ± 10% 50Hz 2KW

3. Overall weight: approximately 35kg