大型旋转机械外电晕保护(OCP)系统中各向异性材料特性的研究

A. Staubach, H. Hirsch, G. Schmidt, F. Pohlmann
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引用次数: 4

摘要

在大型旋转机械中,绝缘系统通过场分级系统进行扩展,以在主绝缘中提供最佳的电场分布。本文分析了外电晕保护(OCP)磁场分级系统的各向异性电材料特性。通过对实际OCP测试样品的建模和后续的数值计算,对系统的场特性进行了表征。由于考虑了复杂的空间子结构,如所检查的现场分级系统中的重叠带层,局部场分布将导致OCP电阻率配置的优化。
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Examination of anisotropic material characteristics in Outer Corona Protection (OCP) systems in large rotating machines
In large rotating machines the insulation system is extended by a field grading systems to provide an optimal electrical field distribution in the main insulation. In this study the anisotropic electrical material properties of the Outer Corona Protection (OCP) field grading system are analyzed. By modeling real OCP test samples and subsequent numeric calculation the systems field properties are characterized. Due to the consideration of complex spatial substructures, like the overlapping tape layers in the examined field grading system, the local field distributions will lead to an optimization of OCP resistivity configurations.
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