Kritik Yüksek Gerilim Motorları ve Jeneratörleri için Yalıtım Durumu İzleme Seviye Stratejisi

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Kritik Yüksek Gerilim Motorları ve Jeneratörleri için Yalıtım Durumu İzleme Seviye Stratejisi

Yayınlandı: 12 Eylül 2025 · Kategori: Kataloglar

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Technical Article 3-Level Strategy of Insulation Status Monitoring for Critical HV Motors and Generators EN ENGLISH ENGLISH 3-Level Strategy of Insulation Status Monitoring for Critical HV Motors and Generators by: Robert Madarasz - PD Test and Monitoring Solutions This article explains why electrical diagnosis of stator winding insulation status is a crucial part of the predictive maintenance program for critical HV motors and generators. Furthermore, it explains why a combination of periodic offline testing and online partial discharge monitoring is the most efficient strategy for condition-based maintenance of machine insulation throughout its lifecycle. this article. The findings mentioned also explain why electrical diagnosis of the machines insulation status is a crucial part of a predictive maintenance program for HV motors and generators, and why relying purely on vibration analysis will detect only around 30% of all failure root causes. I. Why electrical diagnosis of rotating machines? Several studies about the causes of failures in HV motors and generators have been published. The survey of 1199 hydro generators carried out by CIGRE study committee SC11, EG11.02 [1] is an example. This not only identified the part of the machine that had failed but also provided a deeper insight into the failure mechanism. It gives detailed results for 69 incidents, of which 56% involved insulation damage. Other major types of damage were mechanical, thermal, and bearing (Figure...