[問題] 電力系統:Realtime－2016徵求年菜推薦網路訂購最紅的商家.年菜訂購?台北年菜外送餐廳推薦(年菜)?年菜.今年不想做年菜推薦,網路宅配哪一家好?

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批踢踢實業坊 Examination 板

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[問題] 電力系統

Sep 10th 2014, 22:47, by x014067

作者x014067 (蛤)

站內Examination

標題[問題] 電力系統

時間Wed Sep 10 22:47:25 2014

[問題] 應考資格、各種國考疑難雜症等，以有正確作法、答案者為主 (不包括書裡的疑問)。若問題如人生規劃、讀書計畫等，無一定作法、答案者，請用閒聊選項。 http://imgur.com/C5dWMXh

我想請問框框地方是在說什麼，為何無法達成當時間點A 發生P1故障動作順序B23-->B21，然後清除故障當時間點B 發生P2故障動作順序B21-->B23，然後清除故障這樣不是很正常嗎??李元老師好像是說B21，B23感受的故障電流有向左也有向右的所以衝突??沒說是否同時發生P1、P2，各自的時間點各自清除不是嗎?? 謝謝 -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 114.47.235.199 ※ 文章網址: http://www.ptt.cc/bbs/Examination/M.1410360449.A.01B.html

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