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推 therockox: 我也算3% 06/11 11:21
→ superwen: 解答錯? 06/11 11:39
推 Rayless: I=6000/3000=2 06/11 11:59
→ Rayless: p%=2*45/3000=3% 06/11 11:59
→ Rayless: q%=2*60/3000=4% 06/11 11:59
→ Rayless: 最大電壓調整率=0.03+j0.04=0.05 06/11 11:59
→ Rayless: 功率因素=0.03/0.05=0.06 06/11 11:59
推 Rayless: 上面那是套用簡化後的公式 06/11 12:46
→ Rayless: 另外用通用的電壓調整率公式去算 06/11 12:46
→ Rayless: 第六題有電阻有電抗便可得公因0.6 06/11 12:46
→ Rayless: 二次側電流為30 06/11 12:46
→ Rayless: 換算到二次側電阻0.2電抗0.2666 06/11 12:46
→ Rayless: 電壓實部：200*0.6+30*0.2 06/11 12:46
→ Rayless: 電壓虛部：200*0.8+30*0.2666 06/11 12:46
→ Rayless: 可得到無載二次電壓為210 06/11 12:46
→ Rayless: 調整率：（210-200）/200=0.05 06/11 12:46
→ Rayless: 然後上面那個另一個算法的公因不小心多打一個0去了 06/11 12:46
→ therockox: 實部虛部要分開算？？ 06/11 14:46
→ therockox: 我是合在一起算 06/11 14:47
→ therockox: 功因我是用他給的阻抗算的 06/11 14:48
推 Rayless: http://i.imgur.com/FtVjjXP.jpg 06/11 15:04