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Máy phân tích:
+ Màn hình cảm ứng màu 7 inch, chuyển đổi được sang tiếng Anh, giao tiếp thông minh giữa người và máy
+ Kiểm soát nhiệt độ: 4℃-400℃
+ Độ chính xác kiểm soát nhiệt độ hộp: ±0.02℃
+ Độ chính xác hiển thị: 0.1℃/phút
+ Tốc độ nâng lò: bất kỳ giai đoạn nào nền tảng chương trình tăng nhiệt độ, lên tới 120℃/phút
+ Độ lặp lại của chương trình nhiệt độ: ≤1%
Máy phát hiện ngọn lửa hydro (FID):
+ Nhiệt độ hoạt động tối đa 400℃
+ Giới hạn phát hiện: 5×10^-12g/s (n-hexadecane)
+ Độ lệch đường cơ sở: ≤1×10^-13A/30 phút (sau khi thiết bị ổn định trong 2 giờ)
+ Độ nhiễu đường cơ sở: ≤2×10^-14A
+ Dải tuyến tính động: 10^7
Đầu dò dẫn nhiệt (TCD):
+ Nhiệt độ sử dụng tối đa 300℃
+ Độ nhạy: Giá trị S ≥9000mv.ml/mg (benzen)
+ Độ lệch đường cơ sở: ≤50uv/30 phút
+ Nhiễu đường cơ sở: ≤10uv
+ Dải động: 10^5
Cột sắc ký: Dùng cho dầu máy biến áp, 1 cột đo H2, CO, CO2, 1 cột đo CH4, C2H4, C2H6, C2H2, 1 cột đo TCD
Lò chuyển hóa Ni: Chuyển hóa lượng vết CO CO2 thành CH4 và phản ứng trong FID
General Information:
Transformer Oil Dissolved Gas Analyzer (also called: Transformer Oil Gas Chromatography Analyzer) uses chromatographic method to determine the content of dissolved gas in transformer oil. It is effective for power generation and power supply companies to determine whether there are latent overheating, discharge and other faults in oil-filled power equipment in operation to ensure safe and effective operation of the power grid. means. It is also a necessary means for manufacturers of oil-filled electrical equipment to carry out factory inspections of their equipment.
It is suitable for the determination of the content of the dissolved gas components in the insulating oil of the power system. The full analysis of the content of the 7 gas components dissolved in the insulating oil can be completed with one sample injection. The minimum detection concentration of acetylene is 0.01ppm, and the stabilization time is less than the baseline was stable at 40 minutes.
Composition of detection objects: H2, CO, CO2, CH4, C2H4, C2H6, C2H2.
Reference standard: IEC60599-2015, IEC60567-2011
Features:
-The control panel adopts a 7-inch color touch screen design with intuitive display, rich content and easy operation.
-The electronic gas circuit control system has higher and more precise control accuracy. It has multiple control modes such as constant current, constant pressure, program pressure and flow rate, which realizes the comprehensive digitization and intelligence of the instrument, and ensures the repeatability and accuracy of the analysis results. sex.
-The chromatographic process with three detector signals output at the same time has good separation effect and high sensitivity.
-Intelligent self-diagnosis function, the program can diagnose and protect the circuit itself. When the carrier gas leaks or loses gas, the bridge current will be automatically disconnected, which improves the reliability of the instrument.
-The instrument has intelligent operating procedures such as power-on self-check, automatic temperature rise, FID ignition and TCD plus bridge flow. After power-on, it can quickly reach a stable state and perform sample analysis without any operation.
-It can remotely operate the instrument, observe spectra, query data, and remotely calibrate through the network.
Transformer oil and gas composition detection test method
1. Turn on the three gas sources of carrier gas, hydrogen and air in sequence, adjust the output pressure of the three gas sources to normal values (carrier gas 0.4Mpa, hydrogen 0.3Mpa, air 0.4Mpa), ventilate for about ten minutes, and turn on the chromatograph host Under the default intelligent control state, the chromatographic workstation automatically completes the self-checking of the working condition parameters, and the control instrument automatically completes the operations of heating, ignition, and adding bridge flow until it prompts to enter the "analysis state"
2. Make a template: Use a 1ml quantitative card to take the inlet phase of the calibration gas and get the map. After processing the map, fill in the calibration gas concentration in the corresponding table, use the normalization method to get the correction factor, after the factor is obtained, change to the oscillation method and save As a template.
3. Oil sample treatment: Use a 100ml glass syringe to take 40ml oil sample, pinch the rubber cap to seal, and exhaust the air. Use a 5ml glass syringe to take 5ml of nitrogen gas, seal it with a rubber cap and insert a two-way needle, inject 5ml of nitrogen into the oil sample of a 100ml glass syringe, put the oil sample into the shaker, keep the temperature at 50 degrees, oscillate for 20 minutes, and stand still for 10 minutes Then take it out, use a 5ml glass syringe to draw out the gas, read the volume of the outgassed and record it.
4. Oil sample measurement: Use a 1ml quantitative card to extract 1ml of oil and gas, enter it into the chromatograph and click start. After the map is obtained, import the template, process the map, fill in the volume of the extracted gas, temperature, and oil sample volume and calculate the result to obtain the oil and gas concentration.
