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題 名 | 發電機出口端隔相匯流排磁場屏蔽之理論回顧及案例探討=A Review of Electromagnetic Shielding Theory for Isolated Phase Bus Duct of Generator Output Terminal and Case Study |
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作 者 | 朱記民; 賴金明; | 書刊名 | 台電工程月刊 |
卷 期 | 711 2007.11[民96.11] |
頁 次 | 頁18-27 |
專 輯 | 水、火力發電技術專輯 |
分類號 | 448.2 |
關鍵詞 | 隔相匯流排導管; 電流集膚效應; 渦流效應; 鄰近效應; 磁場屏蔽; 電磁共容性; Isolated phase bus duct; IPBD; Skin effect; Eddy current effect; Proximity effect; Electromagnetic shielding; Eelectromagnetic compatibility; EMC; |
語 文 | 中文(Chinese) |
中文摘要 | 發電廠隔相匯流排導管(Isolated Phase Bus Duct, IPBD)是用以傳輸發電機傳輸到升壓變壓器(Generator startup transformer, GSU)二次側大電流的電力傳輸設備,以65萬千伏安(650MVA)的發電機組為例,電壓等級約為20kV之隔相匯流排將流過約20kA的大電流,此一正弦時變的大電流必然會對週遭空間感應很大的磁場,因此有關磁場屏蔽的問題對隔相匯流而言就是一個值得研究與分析的題目。本文針對電磁理論分析及實務改善所發生問題逐一說明,以釐清發電廠隔相匯流排導管相關磁場屏蔽之現象。 |
英文摘要 | The purpose of isolate phase bus duct (IPBD) between the generator and the main transformer is to transfer the vast current, which is approximately 20000 A for 550 MW 20 kV power generation unit. This very large alternating current will induce a strong electromagnetic field, which will cause magnetic heating and induce current circulating problems. This paper proposed the incomplete modification case for isolate phase bus duct (IPBD) at Taichung Thermal Power Plant and presented the advanced improvement for such case based on the basic theory of electromagnetic shielding. |
本系統中英文摘要資訊取自各篇刊載內容。