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[例2-1]一条220kV的输电线,长180km,导线为LGJ-400(直径2.8cm),水平排列,相间距7m,求该线路的R,X,B,并画等值电路.解:电阻:kmSr/08.04005.3114.1418008.01lrR电抗:cmDeq88270027007003...