The online transformer oil spectrophotometer is mainly used for real-time monitoring of the composition and content of dissolved gases in transformer oil. By analyzing characteristic gases, it can determine whether there are potential faults such as overheating and discharge inside the equipment, ensuring the safe operation of the power grid.
Using gas chromatography technology, the concentration of seven or more gases dissolved in transformer oil, including hydrogen (H ₂), methane (CH ₄), ethylene (C ₂ H ₄), acetylene (C ₂ H ₂), etc., is separated and analyzed by a detector. When overheating or discharge faults occur inside the equipment, the specific gas content in the oil will abnormally increase, for example, a sharp increase in acetylene content may indicate local arc discharge.
The online transformer oil spectrophotometer uses differential pressure pump suction to draw transformer oil into the oil sample collection unit for oil sample circulation. Under vacuum environment and magnetic stirring, oil and gas are rapidly separated and impurities are removed through cold trap technology. Subsequently, the fault characteristic gas was introduced into the six way valve quantitative tube and entered the chromatographic column under the push of the carrier gas. Different gases are separated due to differences in affinity with the chromatographic column. Gas sensors detect the faulty gases one by one in the order of peak emission and convert their concentration characteristics into electrical signals. The CPU of the data collector center processes and stores electrical signals, and calculates the components and total hydrocarbon content of the fault gas through embedded data analysis software. Combined with the fault diagnosis system of the backend main control computer, it realizes online monitoring and analysis of transformer faults.
function
Real time monitoring: It can monitor the changes in gas composition in transformer oil in real time and detect potential faults in transformers in a timely manner.
High precision detection: capable of detecting various gas components in transformer oil, including H ₂, CO, CO ₂, CH ₄, C ₂ H ₆, C ₂ H ₄, C ₂ H ₂, etc., with a small detection concentration of up to 0.1ppm.
High degree of automation: It has functions such as automatic quantitative cycle cleaning, oil inlet, oil and gas separation, sample analysis, data processing, real-time alarm, etc., reducing manual intervention and improving work efficiency.
Good stability: The use of microprocessor control technology and high-precision temperature control system ensures the stability and reliability of the instrument.
Easy to operate: Equipped with a large LCD display interface and menu style Chinese operation, the display is intuitive and the operation is convenient.