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《Power System Technology》 2008-15
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On-Line Monitoring of Oil-Dissolved Gas for Transformer Tap Changing Switch

WANG Lei,KONG Dong (Huangyan Electric Power Company,Taizhou 318020,Zhejiang Province,China)  
The implementation of on-line monitoring of oil-dissolved gas for transformer tap changing switch contributes to correctly judge the faulty condition and extending trend of tap changing switch, to reduce the maintenance cost of tap changing switch as well as to improve the operational security and reliability of transformer. The authors present the features of on-line monitoring of oil-dissolved gas; in three aspects, i.e., the approach to collect gas, the detector and the monitored object, the on-line monitoring technology of oil-dissolved gas home and abroad, the developing trend of this technology and practical application examples are summarized in the hope of providing theoretical basis and reference for the implementation of on-line monitoring of oil-dissolved gas for transformer tap changing switch.
【CateGory Index】: TM855
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