[請益] 三相電路學問題

看板Electronics作者 (流浪漢)時間17年前 (2009/03/15 04:03), 編輯推噓1(1推 0噓 6→)
留言7則, 3人參與, 最新討論串1/1
A 132kv(nominal) three-phase supply to a distribution company supplies 200MW with a lagging power factor of 0.9,when the voltage at the supply point in V=1.03∠0 per unit. a) what is the apparent power, S that is supplied into the load, in per unit on 100 MVA? b) find the magnitude I and phase angle φ° of the current I = I ∠ φ° 題目沒有Z 無法求得I 請問有其他辦法嗎? 請前輩指點 感謝 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 123.243.11.225
推
03/15 16:44, , 1F
有時候求I 是不需要Z的= =
03/15 16:44, 1F
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03/15 16:51, , 2F
是的我知道 可是目前想不到如何解 請問可以指點一下嗎
03/15 16:51, 2F
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03/15 17:11, , 3F
S=222MVA 角度25.84
03/15 17:11, 3F
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03/15 17:12, , 4F
標么值2.22
03/15 17:12, 4F
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03/15 17:14, , 5F
I=943.66 角度 -25.84
03/15 17:14, 5F
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03/15 17:19, , 6F
S=1.732 x V x I*
03/15 17:19, 6F
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03/16 12:27, , 7F
感謝您 我了解了:)
03/16 12:27, 7F
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