輸配電學~傳播常數開根號問題? - 考試
By Margaret
at 2014-10-27T22:49
at 2014-10-27T22:49
Table of Contents
※ 引述《bluert (WW)》之銘言:
: 題目︰某三相60Hz之輸電線,串聯阻抗z=0.524∠79.04度 Ω/km
: 並聯導納y=j0.000003728 S/km,求傳播常數?
: γ=√yz
: =√(j0.000003728)×(0.524∠79.04度)
: =0.00012313+j0.0012835
: 我想請教教複數如何根號呢?
: 謝謝
倘若並聯導納y=j0.0000031728 S/km,進行計算
γ=√yz
=√(j0.0000031728)×(0.524∠79.04度)
=√{(0.0000031728∠90)×(0.524∠79.04)}
=√{1.662547*10-6∠169.04}
=1.2894*10-3∠84.52 (註:169.04/2=84.52)
=0.00012313+j0.0012835 (註:將極座標化為直角坐標)
希望有解出你心中的疑惑,我也是今年國營的考生。
--
: 題目︰某三相60Hz之輸電線,串聯阻抗z=0.524∠79.04度 Ω/km
: 並聯導納y=j0.000003728 S/km,求傳播常數?
: γ=√yz
: =√(j0.000003728)×(0.524∠79.04度)
: =0.00012313+j0.0012835
: 我想請教教複數如何根號呢?
: 謝謝
倘若並聯導納y=j0.0000031728 S/km,進行計算
γ=√yz
=√(j0.0000031728)×(0.524∠79.04度)
=√{(0.0000031728∠90)×(0.524∠79.04)}
=√{1.662547*10-6∠169.04}
=1.2894*10-3∠84.52 (註:169.04/2=84.52)
=0.00012313+j0.0012835 (註:將極座標化為直角坐標)
希望有解出你心中的疑惑,我也是今年國營的考生。
--
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