Soal Transmisi Tugas 1 Full.docx

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3. Tahanan suatu konduktor 𝑙

R = 𝜌𝐴 𝜌𝑜 = 1,63 mikro – ohm – cm I = 1 Km = 105 A = 106 mm2 x 10-2 cm2 Jawab : 10−5

𝑙

Ro = 𝜌𝑜 𝜌 𝐴 = 1,63 x 10-5 x 106 𝑥 10−2 = 0,01537 𝑜ℎ𝑚⁄𝑘𝑚 Dengan memperhitungkan pengaruh lapisan (biasanya konduktor lebihdari 3 lapisan) 𝜌𝑜 = 1,02 x 0,01537 = 0,0156774 𝑜ℎ𝑚⁄𝑘𝑚 Wdwd

4. Diketahui : f = 50 hz A= Tembaga 100 mm2 x 102 cm2 dari tabel 1,63 D= 1,1684 cm r = 0,5842

Ditanya = Xa :.....? Jawab : 1

Xa = 2,8934 x 10-3 x f (𝑙𝑜𝑔 𝑟1 + 0,10857) 𝑜ℎ𝑚⁄𝑘𝑚 1

= 2,8934 x 10-3 x 50 (𝑙𝑜𝑔 0,5842 + 0,10857) 𝑜ℎ𝑚⁄𝑘𝑚 = 0,14467 (0,2334 + 0,10857) 𝑜ℎ𝑚⁄𝑘𝑚 = 0,04947 𝑜ℎ𝑚⁄𝑘𝑚

5. Diketahui : kawat 157 𝑚𝑚2 X1 : 0,42 Ohm/km 12 strands f : 50 Hz Ditanya : GMD & GMR.. Jawab : d12 = d23 = d45 = d56 = 3,0786 m d13 = d46 = 6,096 m d14 = d36 = 8,2013 m d15 = d24 = d26 = d35 = 6,6751 m d25 = 6,4008 m d16 = d34 = 5,4864 m maka : GMD = √ d12 d13 d14 d15 d16 d23 d24 d26 d34 d35 d45 d46 d56 √ 3,07854 x 6,0962 x 6,67514 x 5,48642 = 4,9165 meter.

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