外电晕防护材料耐久性高级评估

A. Litinsky, G. Schmidt, F. Pohlmann, H. Hirsch
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引用次数: 1

摘要

为了缩小旋转机械上OCP侵蚀机理的影响因素,进行了大量的试验。损害局部放电的强度以及材料的热老化和电老化在很大程度上取决于温度和电场强度。然而,所使用的导电胶带材料的类型似乎对其抗局部放电的耐久性至关重要,因此在电机寿命中出现侵蚀迹象。获得了先进的OCP胶带材料耐久性评价方法。
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Advanced Assessment of Outer Corona Protection Material Durability
Numerous tests have been performed to narrow down the contributing factors for the mechanism of OCP erosion on rotating machines. The intensity of impairing partial discharges as well as the thermal and electrical ageing of the material depends strongly on the temperature and electrical field strength. However, the type of used conductive tape material appears to be essential regarding its durability against partial discharges and therefore the appearance of erosion signs in an electrical machine lifetime. Advanced testing and evaluation methods have been obtained for assessment of OCP tape material durability.
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