The paper presents a new fault location method with travelling waves (surge) on distribution line to restore power supply as soon as possible. Proposed method builds a diagram which describes transmission and reflection of travelling waves over the lines and generates pseudo waves based on the diagram. The least error condition including fault point is estimated by numerical analysis comparing measured waves and pseudo waves. The method is robust and accurate without line parameters such as the speed of travelling wave. And the method can be applicable for multiple faults and branch line faults without any additional modification.
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