高压直流换流变压器绝缘热老化评价

Conference Record of the 2004 IEEE International Symposium on Electrical Insulation Pub Date : 2004-09-19 DOI:10.1109/ELINSL.2004.1380535

D. Grant, W. McDermid

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引用次数: 8

摘要

一台高压直流换流变压器在服役24年后退役并被回收。它没有经历过在使用中的故障，尽管来自同一家族的其他产品由于过热而失败。变压器的抢救提供了一个机会，观察纤维素过热的迹象，采取纸样DP测量，并评估粘合CTC的机械强度。

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Assessment of thermal aging of HVDC converter transformer insulation

An HVDC converter transformer was removed from service and salvaged after 24 years of service. It had not experienced an in-service failure, although others from the same family had failed as a result of overheating. The salvage of the transformer provided an opportunity to observe signs of overheated cellulose, to take paper samples for DP measurements, and to assess the mechanical strength of the bonded CTC.

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Conference Record of the 2004 IEEE International Symposium on Electrical Insulation

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