Transformer insulating oil moisture and hydrogen system detection device and detection method thereof

Abstract

The invention provides a transformer insulating oil moisture and hydrogen system detection device and a detection method thereof. The transformer insulating oil moisture and hydrogen system detectiondevice comprises an oil line system, a hydrogen detection module, a communication module and a system software module; the oil line system comprises a filter, a deaeration chamber, and an oil pump connected through pipeline in order; a liquid level controller is arranged in the deaeration chamber, a moisture sensor is arranged at the bottom, an electromagnetic valve is arranged between the filterand the deaeration chamber, and a second electromagnetic valve is arranged between the deaeration chamber and the oil pump; the hydrogen detection module comprises a deaeration chamber, an air pump and a hydrogen sensor connected in order through the pipeline; a third electromagnetic valve is arranged between the air pump and the hydrogen sensor, and a fourth electromagnetic vale is arranged at anoutlet of the hydrogen sensor; the oil line system and the hydrogen detection module are in signal connection with the system software module, the system software module and the communication moduleare in data transmission connection, and the communication module and the master station computer are in data transmission connection.

Description

technical field [0001] The invention belongs to the technical field of detection systems, and relates to a detection device and a detection method for a transformer insulating oil micro-water and hydrogen system. Background technique [0002] With the development of modern industry, hydrogen has been widely used in chemical industry, metallurgy, aerospace, electric power and other departments. The concentration measurement of hydrogen has been paid more and more attention. How to quickly and accurately measure the concentration of hydrogen has become an urgent problem to be solved in various related industries. . Trace moisture has a significant impact on electrical performance indicators such as dielectric loss factor and resistivity of insulating oil. It is of great significance to explore the influence of insulating oil by trace moisture for taking effective measures to monitor the operating state of insulating oil. At present, the regular maintenance system commonly imp...

AI Technical Summary

Problems solved by technology

The off-line gas chromatograph has the advantages of good selectivity, high separation performance, fast separation time, high sensitivity and wide application range, but there are also a series of shortcomings, such as human error in degassing operation, manual correction of detection curve, etc. It will also increase the error; from oil sampling to oil and gas separation to laboratory analysis, the operation procedure is complicated and takes a long time; in addition, the development of insulation deterioration varies from time to time, and preventive experiments cannot detect faults in real time. On-line monitoring of gas content in oil has become an urgent need

The online gas chromatograph monitoring system solves the shortcomings of the off-line gas chromatograph, such as long detection cycle and long analysis time.

However, most of the current online gas chromatography monitoring systems, such as the method mentioned in the "MGA2000 Transformer Oil Gas Online Monitoring Device" of Ningbo University of Technology, only use gas in oil smart sensors for measurement, which has low measurement accuracy, less gas to be measured, and long-term work. Unstable and heavy maintenance

Images