绝缘油气体色谱分析判别牵引变压器故障

Gas Chromatography Analysis Used for Faults Diagnosis of Traction Transformers

定期对牵引变压器绝缘油中溶解气体作色谱分析 ,并根据历次测试记录或重复取样试验结果 ,考察牵引变压器的产气率 ,特别是运用特征气体法、IEC3比值法等结合电气试验 ,是判别评估牵引变压器内部故障存在与否、严重程度及发展趋势的有效方法。

Chromatographic analysis of the dissolved gases in insulation oil of the traction transformers are carried out regularly in shenzhen railway power supply section. According to all previous test records or repetitive sampling test results and reviewing gas-generating rates of the traction transformers, especially based on the characteristic gases method and IEC-3-ratio method combined with electrical tests, chromatography analysis is applied to estimate whether faults exist in the interior of traction transformers, how serious faults are and how faults would develop.