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Specialized chromatograph for transformer oil analysis
The specialized gas chromatograph for transformer oil analysis in the power system fully meets the requirements of GB/T 17623-1998 "Gas Chromatography
Product details
GC-9890BDType Transformer Oil Analysis Gas Chromatography
JunqiinstrumentEquipment (Shanghai) Co., Ltd
Sales hotline: 57654830
Technical Department: 13761342293
GC-9890BDThe gas chromatograph for analyzing transformer oil fully meets the requirementsGB/T 17623-1998Dissolved Gas Group in Insulating Oil
Determination of Content by Gas Chromatography ", GB/T 7252-2001" Dissolved in Transformer Oil "in the Electric Power Industry Standard of the People's Republic of China
Guidelines for Gas Analysis and Judgment,A multi-purpose gas chromatograph innovatively designed by widely absorbing the advantages of similar instruments at home and abroad. Instrument procurement
Using a dual column parallel split column system with thermal conductivity and dual hydrogen flame detectors, as well as a conversion furnace, it can achieve the dissolution of gas components in oil through a single injection
Complete analysis. The instrument is mainly used for internal fault detection of oil filled electrical equipment in power systems. The instrument also has multi-purpose functions and can be used for
Analysis of sulfur hexafluoride impurities, analysis of cooling medium for hydrogen cooled generators, analysis of boiler flue gas, analysis of natural gas, and environmental monitoring analysis.
In addition, it is widely used in petroleum Chemical industry Gas analysis of mining and other systems.
Main performance characteristics:Adopting the HP5890 technology from the American (HP) company, the main integrated circuit board uses chips from the American AD company,
High temperature control accuracy and excellent resistance to voltage fluctuation interference. Each temperature control channel is independently controlled and not affected by faults in other heating zones.
1. Adopting microcomputer control, keyboard setting, LCD display, and instant memory function.
2. Signals from detectors, heater values, furnace temperature, flow sensor readings, or stored column compensation baselines
Numbers can be assigned to a simulated output channel.
3. Host detection and fault diagnosis, experimental data stored for power-off protection, stopwatch and running timer, keyboard locking function.
4. HP's patented hydrogen flame ionization (FID) detector is easy to disassemble and install, making it convenient for cleaning or nozzle replacement
(Stainless steel metal nozzle), easy to operate; The input signal can be logarithmically amplified, reducing interference and having high sensitivity,
Good linearity and wide range. It can be installed with the American HP-5890 gas chromatograph micro thermal conductivity detector to achieve complete docking.
5. The high-performance thermal conductivity (TCD) detector is equipped with a gas cut-off protection device using high resistance imported Leyte tungsten wire and nickel converter,
The detection capability fully meets the requirements of the Ministry of Electric Power for the determination of gas component content in transformer oil and environmental monitoring for trace amounts of CO, CO2testing.
6. One injection, using a secondary split column system, with fast analysis speed and good reproducibility.
7. Dual hydrogen flame design allows for low content of hydrocarbons and high content of CO, CO2Separate detection to avoid mutual interference,
Improved detection sensitivity.
8. Power system chromatographic data workstation, dual channel acquisition, insulation oil dedicated software, dual graph merging automatic meter
Calculate the total hydrocarbon ratio.
9.Adopting a new type of column packing and a dual column temperature process to achieve C2H2Early detection time, improved sensitivity, and shortened analysis cycle.
10. Determination of components: TCD：H2， O2
FID I： CH4， C2H2C2H4， C2H6
FID II： CO，CH4， CO2
Main technical indicators:
1. Column chamber temperature: room temperature+5 ℃~400 ℃, temperature control accuracy ± 0.05 ℃
2. Testing room temperature: room temperature+15 ℃~400 ℃, temperature control accuracy ± 0.05 ℃
3. Converter temperature: room temperature+15 ℃~360 ℃, temperature control accuracy ± 0.1 ℃
4. TCDSensitivity to H2The small detection concentration is less than 5ppm
5. FIDDetection limit
Regarding C2H2The detection concentration is less than 0.1ppm; Regarding CO, CO2The detection concentration is less than 2ppm
6Power supply conditions: 220V ± 10%, 50 ± 0.5HZ
7Power: Approximately 2kw
Detector system
1Hydrogen flame ionization detector (FID):
1Hydrogen flame ionization detector (FID):
Easy to disassemble and install, convenient for cleaning or replacing nozzles, simple to operate; The input signal can undergo logarithmic amplification,
Reduced interference, high sensitivity, good linearity, and wide range.
Sensitivity: Type A Mt ≤ 5 ×10-12g/s（N-Hexadecane)
Baseline noise: ≤ 6×10-12A/H
Linear range: ≥105
Stable time:< 0.5h
Sensitivity: Type A Mt ≤ 5 ×10-12g/s（N-Hexadecane)
Baseline noise: ≤ 6×10-12A/H
Linear range: ≥105
Stable time:< 0.5h
2Thermal conductivity detector (TCD):
Sensitivity: ≥ 4000mv • ml/mg (n-hexadecane)
Baseline noise: ≤ 30 μ V (with a carrier gas of 99.999 helium)
Stable time: Type A<1.5h gas cut-off protection
Stable time: Type A<1.5h gas cut-off protection
Update time: August 10, 2020 17:18:32
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