Type Selection of Energy-saving Conductors in 220 kV Transmission Lines
This essay outlines four types of energy-saving conductors,i.e.,high-conductivity aluminum conductor with steel reinforcement,high-conductivity aluminium conductor with aluminium-alloy reinforcement,medium-strength all a-luminium-alloy strands conductor,and high-conductivity aluminium conductor with high-strength aluminum-clad steel re-inforcement,and carries out comparative analysis from the perspectives of electrical properties,mechanical properties,and annual cost.The selective comparison shows that,the medium-strength all aluminium-alloy strands conductor and high-conductivity aluminium conductor with high-strength aluminum-clad steel reinforcement are superior in energy-saving performance,and the increases in transmission line capacity and annual maximum-loss hours lead to rises in the energy-saving utility.
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