<p> 每一回路1km的电阻、电抗和电纳为<br> <img src="http://que-oss.fenziquan.com/web/akimg/asource/2015052414292922260.jpg">(Ω/km)<br> X<sub>0</sub>=0.1445tg(D<sub>av</sub>/r)+0.0157<br> =0.1445tg(1.26×400/(1.387/2))+0.0157<br> =0.429(Ω/km)<br> <img src="http://que-oss.fenziquan.com/web/akimg/asource/2015052414294136734.jpg"><br> =2.65×10<sup>-6</sup>(S/km)<br> <img src="http://que-oss.fenziquan.com/web/akimg/asource/201505241429543027.jpg"><br> Q<sub>C</sub>=U<sup>2</sup>B=35<sup>2</sup>×2.65×10<sup>-4</sup>=0.33(Mvar)<br> 双回路的电阻、电抗、电纳和电容的功率分别为:R=8.25Ω、X=10.7Ω、Q<sub>c</sub>=0.33Mvar。</p>