旋转机器的PD诊断。可能性和局限性

Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.99CH37035) Pub Date : 1999-10-26 DOI:10.1109/EEIC.1999.826206

M. Hoof, S. Lanz

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引用次数: 31

摘要

简要概述了大型旋转机械中的典型PD源。介绍了在线测量和离线测量的优缺点，并讨论了它们在基于状态的机器维护中的意义。概述了PD测量作为评估旋转机器绝缘条件的工具的可能性以及局限性。给出了对发电机进行在线PD测量的例子，该测量允许明确的诊断决策，从而获得可靠的状态评估。然而，它还表明，PD测量有一些内在的局限性，因此不能检测到几乎所有的绝缘相关问题。

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PD diagnostics on rotating machines. Possibilities and limitations

A short overview is given of typical PD sources within large rotating machines. Characteristic pros and cons of online and offline measurements are presented and their significance with regard to condition based machine maintenance is discussed. The possibilities as well as the limitations of PD measurements as a tool to assess the insulation conditions of rotating machines are outlined. Examples are given for online PD measurements on generators that allow a clear diagnostic decision and therefore a reliable condition assessment to be obtained. However, it is additionally shown that PD measurements have some intrinsic limitations and therefore can not detect virtually all insulation related problems.

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Proceedings: Electrical Insulation Conference and Electrical Manufacturing and Coil Winding Conference (Cat. No.99CH37035)

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