電機機械問題 - 考試
By Hazel
at 2013-07-03T15:31
at 2013-07-03T15:31
Table of Contents
出處:99 年機械技師
1.
http://ppt.cc/MJ7R (題目)
http://ppt.cc/iaqO (我的解答)
這題我有點疑問,題目給的額定視在功率,頻率是寫在負載側嗎?
因為我由高壓側轉到低壓側之後再驗算一次視在功率
發現算出來是 4400∠-25.84 ≠ 5000∠25.84 也就是題目給的額定視在功率
不知道為什麼會這樣子呢?
2. 我想在確定幾件事情
http://ppt.cc/A36g
(1)感應電動機的輸入功率是在定子側,輸出功率是在轉子側嗎?
(2)直流與同步電動機的輸入功率是在端電壓側,輸出功率是在電樞側嗎?
(3)直流與同步發電機的輸入功率是在電樞側,輸出功率是在端電壓側嗎?
(4)變壓器的輸入功率是在非負載側,輸出功率是在負載側嗎?
(5)題目給的額定視在功率,額定電壓,額定電流等
都與前列(1)~(4)的輸出功率同側嗎?
3.
http://ppt.cc/hZlh
想問一下這兩種圖有甚麼差別嗎?看有的書是畫成左邊的圖,有的書是畫成右邊的圖
謝謝
--
1.
http://ppt.cc/MJ7R (題目)
http://ppt.cc/iaqO (我的解答)
這題我有點疑問,題目給的額定視在功率,頻率是寫在負載側嗎?
因為我由高壓側轉到低壓側之後再驗算一次視在功率
發現算出來是 4400∠-25.84 ≠ 5000∠25.84 也就是題目給的額定視在功率
不知道為什麼會這樣子呢?
2. 我想在確定幾件事情
http://ppt.cc/A36g
(1)感應電動機的輸入功率是在定子側,輸出功率是在轉子側嗎?
(2)直流與同步電動機的輸入功率是在端電壓側,輸出功率是在電樞側嗎?
(3)直流與同步發電機的輸入功率是在電樞側,輸出功率是在端電壓側嗎?
(4)變壓器的輸入功率是在非負載側,輸出功率是在負載側嗎?
(5)題目給的額定視在功率,額定電壓,額定電流等
都與前列(1)~(4)的輸出功率同側嗎?
3.
http://ppt.cc/hZlh
想問一下這兩種圖有甚麼差別嗎?看有的書是畫成左邊的圖,有的書是畫成右邊的圖
謝謝
--
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考試
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