【摘要】 本文根据分布参数电路理论建立了输电线的故障诊断方程，用改变电源频率的方法区分真故障和伪故障，制定了相应的算法。经仿真证明，该方法是有效的。更多还原

【Abstract】 This paper presents a fault diagnosis equation basing on the distributed arameter circuit theory and makes upthe corresponding algorithm , It can discriminate real fault and pseudo fault by the way of changing power supplyfrequency. Simulation result proves the method is effective.更多还原