Critical state is the most important character of polluted insulator.
临界条件是污秽绝缘子最重要的特征量之一。
The partial arc may derive from the surface of polluted insulator string and form the air gap arc during the pollution flashover process at low air pressure.
低气压下绝缘子污闪放电过程中局部电弧存在飘离绝缘子表面形成空气间隙电弧的现象。
The result proved that the mathematic models has high precision and the fusion technology of information can be used in measurement of polluted insulator by acoustic emission technology successfully.
计算和仿真结果表明建立的数学模型有较好的精度，多传感器融合技术能成功运用在声发射式绝缘子污秽监测中。
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