长期以来，根据预防性试验和油中溶解气体的气相色谱分析结果判断变压器的绝缘状况，对防止事故的发生起到了很大作用。
The judgment of transformer insulation condition, which is based on preventive test and DGA, has played an important role of accident prevention for a long time.
通过对变压器绝缘油的试验分析，认为钙、镁离子进入变压器绝缘油是导致变压器绝缘油介质损耗偏高的主要原因。
It is believed that the calcium ion and magnesium ion went into transformer insulation oil is why the loss of them is higher through the test of transformer insulation oil.
通过对变压器绝缘油的试验分析，认为钙、镁离子进入变压器绝缘油是导致变压器绝缘油介质损耗偏高的主要原因。
It is believed that the calcium ion and magnesium ion went into transformer insulation oil is why the loss of them is higher through the test of transformer insulation oil.
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