Abstract

By analyzing the type and content of gas in oil, the latent faults in equipment can be found as soon as possible, and the faults can be monitored at any time. In this paper, a degassing device based on headspace degassing method is designed. The oil circuit adopts the way of oil pump and battery valve to complete the oil inlet and oil discharge. Through stirring, the dissolved gas in the oil can reach the dynamic balance in the gas-liquid two-phase, so as to realize the rapid and effective separation of the gas in the oil. At the same time, after degassing, the oil can be sent back to the body. In addition, the degassing verification of the device is carried out, and the effect is good. In the next step, the device can be integrated with the gas detection equipment to form a sealed cabinet detection equipment, which is of great significance for the technical realization and engineering application of online monitoring and live detection of power equipment.

Highlights

  • Power transformer is one of the core equipment in the power system, which is very important in the production, transmission and consumption of power

  • Through effective and reliable monitoring method, the latent faults existing in the transformer can be found in time, and the condition based maintenance can be realized to ensure the safety of power system

  • The membrane permeation method makes the dissolved characteristic gas gradually penetrate into the detection chamber, which has the problems of long equilibrium time, environmental temperature, and the installation mode; the vacuum degassing method adopts the negative pressure mode, which has the problems of gas re dissolution due to the influence of environmental conditions, and the degassing rate changes The headspace degassing method is a dynamic balance method, through a certain amount of stirring, the dissolved gas in the oil can reach the distribution balance in the gas-liquid two-phase, so as to realize the rapid and effective separation of the gas in the oil

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Summary

Introduction

Power transformer is one of the core equipment in the power system, which is very important in the production, transmission and consumption of power. Through effective and reliable monitoring method, the latent faults existing in the transformer can be found in time, and the condition based maintenance can be realized to ensure the safety of power system. The membrane permeation method makes the dissolved characteristic gas gradually penetrate into the detection chamber, which has the problems of long equilibrium time, environmental temperature, and the installation mode; the vacuum degassing method adopts the negative pressure mode, which has the problems of gas re dissolution due to the influence of environmental conditions, and the degassing rate changes The headspace degassing method is a dynamic balance method, through a certain amount of stirring, the dissolved gas in the oil can reach the distribution balance in the gas-liquid two-phase, so as to realize the rapid and effective separation of the gas in the oil. It can be integrated with the gas detection equipment to complete the process of automatic gas sampling, detection and analysis, which ensures the accuracy of the analysis results and the safety in the sampling process, and provides an effective means for the research and application of on-line detection

Technical principles
System scheme
Hardware design
Software design
Field application
Findings
Conclusion

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