臺灣博碩士論文加值系統

　　自從西元1882年第一部變壓器生產問世至今已有百年的歷史，隨著近年來製造技術的進步及材料的改良，已使變壓器不論在容量、性能及壽命上均有相當大的突破。充分展現低耗損、體積小及重量輕等優點。一部變壓器，在標準條件下運轉其平均壽命約可達到20∼30年之久，但以目前業界使用之樹脂型乾式變壓器故障情形統計來看，其使用時間尚不足十年。為此，本文就各方面來加以探討其間的差距；尤其針對絕緣部分做深入的討論，期能瞭解問題癥結所在。故障的實際責任歸屬並不在討論範圍內，為止再發生類似的事故，造成重大停電。本文藉由探討樹脂型乾式變壓器絕緣特性，來瞭解如何能在變壓器異常前即能得知而加以預防。

　　Since 1882, the first transformer was produced, it has been more than one hundred years about the history of transformer. Owing to the development of the producing technique and the improvement of the material, it has made great progress in capacitance,m performance, and the lifetime of the transformer. For example, the transformer possesses the advantages of low loss, small bulk, and light weight. The mean time before failure of a transformer is about 20to 30 years if we operate it in the normal condition. But according to our failure statistics of cast-resin dry-type transformer, the mean usage time is less than ten years. We will discuss the difference between the theo-retic and the practical usage. We decide to make a deeper discussion about the insulation deterioration. Finally, we will propose our sug-gestion which can lead us to know how to detect the difference of transformer vefore it fairs.