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批踢踢實業坊 Examination 板
 
Re: [課業] 電機機械-三相標么計算
Dec 11th 2014, 21:37, by blouson

作者blouson (小智)

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標題Re: [課業] 電機機械-三相標么計算

時間Thu Dec 11 21:37:14 2014

※ 引述《bpbpbp (= =)》之銘言: : 偶然發現同一題目出現在兩本書中, : 答案竟然不同。 : 會不會我對題目的理解錯了? : 請版上高手不吝解答。 : 感謝~~ : A http://imgur.com/Nl9ijxe
: B題目 http://imgur.com/i3JIQvK
: B答案 http://imgur.com/T9vC8Ht
這題跟我想要問的題目一樣 102年國營電機甲 專B 第四題 題目: http://ppt.cc/Kk4R 陳澤網站解答: http://ppt.cc/pbDh 小弟在△-Y Y-△的變壓器上還是很容易搞混啊! 個人覺得 (1) 換算至高壓側△每相阻抗應該是: 19.044+j114.264 (2) 等效Y接電路則是: (19.044+j114.264)/3 第三小題陳澤解答: http://ppt.cc/1xAr 小弟印象中換成pu系統不是不用管 根號3 & 30度 的轉換嗎? I1(相)=1∠36.87度 pu(第3小題PF=0.8 lead) 不知道小弟的觀念是否正確,還請多給指教,謝謝! -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 118.165.133.63 ※ 文章網址: http://www.ptt.cc/bbs/Examination/M.1418305037.A.0DD.html

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