To use dissolved gas analysis (DGA) in oil can discover the nature of hidden fault sensitively in power transformer.

用油中溶解气体分析(DGA)能灵敏地发现电力变压器潜伏性故障的性质。

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Power transformer is very important in power system. Now, dissolved gas analysis (DGA) is the most effective and convenient method in transformer fault diagnosis.

电力变压器属电力系统中的重要设备，目前油中溶解气体分析(DGA)的三比值法是对变压器进行故障诊断的最方便、有效的方法之一。

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The acetylene overproof phenomena in a large transformer are analyzed with dissolved gas analysis, and based on its structures, the fault positions are determined.

用溶解气体分析法对一台大型变压器内部乙炔超标现象进行了分析，并结合该变压器的结构，判断出故障所在位置。

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