同步電動機額定問題 - 考試
By Sarah
at 2013-04-20T22:25
at 2013-04-20T22:25
Table of Contents
大家好,電機機械題目很多都是在"額定(滿載)"下操作,而我發現
同步電動機,題目額定除了線電壓和PF外,有時候功率額定是給平
均功率或視在功率,請問是不是這樣子的:
1.若給視在功率(VA)額定>>>指的是"輸入端"視在功率的額定,若知
PF和端電壓可計算滿載下的線電流(看很多題目都這樣算)
2.若給平均功率(kW or hp)額定>>>指的是"輸出端"的平均功率額定
若給PF和端電壓,滿載下還要先求出Pin,才可以得滿載線電流
又或是
3.不管額定是給"視在功率"還是"平均功率",全部都是指"輸出端"
只是有時候題目沒說要考慮其他損失消耗的功率,故這個額定輸
出功率就約等於輸入端功率,便可求滿載線電流
請問以上哪一個觀念是正確的呢???
謝謝
--
Tags:
考試
All Comments
By Zenobia
at 2013-04-22T13:50
at 2013-04-22T13:50
By Agnes
at 2013-04-25T03:36
at 2013-04-25T03:36
By Jacky
at 2013-04-25T18:44
at 2013-04-25T18:44
By Joseph
at 2013-04-26T00:54
at 2013-04-26T00:54
By Kumar
at 2013-04-28T09:40
at 2013-04-28T09:40
By Charlotte
at 2013-05-01T03:03
at 2013-05-01T03:03
By Mia
at 2013-05-05T02:50
at 2013-05-05T02:50
By Rebecca
at 2013-05-05T10:08
at 2013-05-05T10:08
By Gilbert
at 2013-05-07T08:32
at 2013-05-07T08:32
By Madame
at 2013-05-08T16:53
at 2013-05-08T16:53
By Jack
at 2013-05-10T22:18
at 2013-05-10T22:18
By Agatha
at 2013-05-11T10:36
at 2013-05-11T10:36
By Doris
at 2013-05-12T02:43
at 2013-05-12T02:43
By Brianna
at 2013-05-14T12:01
at 2013-05-14T12:01
By Todd Johnson
at 2013-05-17T20:16
at 2013-05-17T20:16
By Ethan
at 2013-05-18T19:18
at 2013-05-18T19:18
Related Posts
英文文法-分詞構句請益2013/4/20
By Rachel
at 2013-04-20T22:07
at 2013-04-20T22:07
民法買賣之問題
By Barb Cronin
at 2013-04-20T21:43
at 2013-04-20T21:43
基本電學一題 戴維寧 求解 電橋 電流
By Olive
at 2013-04-20T20:14
at 2013-04-20T20:14
基本電學一題 戴維寧 求解
By Emily
at 2013-04-20T19:14
at 2013-04-20T19:14
代PO 101律師考取心得
By Emily
at 2013-04-20T17:18
at 2013-04-20T17:18