Analysis of Box Transformer Oil Chromatographic Abnormal Data in a 35kV Wind Farm

Abstract:

The design structure of the high voltage winding of the box transformer lead to high voltage between the high voltage winding layers, and electric field of each layer winding end is over-concentration, and the additional loss of load loss is too high, and thus lead to further the enameled wire of high voltage terminal happens partial discharge seriously and cryogenic overheating are discussed through the defects analysis of box transformer and a series of related experiments, hanging core inspection and analysis. If the hydrogen content is overweight seriously, total hydrocarbons is overweight, and methane gas content of total hydrocarbons is very high, ethylene and acetylene is very low, it can initially determine that low-energy partial discharge fault is inside the device are demonstrated. Finally, the corrective measures for the common problem of this group box transformer are presented.

• Periodical: Applied Mechanics and Materials (Volume 310)
• Pages: 395-398
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.310.395
• Online since: February 2013
• Authors: Qing Hao Wang, Gang Chen, Yan Jun Pang, Wen Guang Zhang, Guo Bin Liu, Yu Meng, Cuan Zong Zhao
• Keywords: Additional Loss, Electric Field Strength, Hydrogen, Oil Chromatography, Partial Discharge (PD), Total Hydrocarbons

References

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