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.
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 structure and function of the field testing and diagnostic system of the large transformer insulation condition are introduced. The diagnostic techniques for transformers are presented.
介绍了一个大型变压器绝缘状态可现场测试诊断系统的结构和功能，以及应用该系统对变压器进行诊断的技术与手段。
It can availably predict the concentrations of the dissolved gases in transformer oil and diagnose insulation condition of transformer in future.
该方法能够有效地预测未来时刻变压器油中溶解气体的浓度、诊断变压器在未来时刻的绝缘状况。
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