The uncertainty of wave speed causes error to the fault locating results based on traveling waves. The current fault locating methods that can avoid wave speed are based on single or double terminal traveling waves. However refraction or reflection may cause the traveling waves decay to immeasurable degree. In this case， the method is not valid or causing great errors. Based on the travel wave locating theory， a new method dispensable of wave speed and transmission line radian is presented. By measuring the different times when the initial traveling wave surge arrives at the reference bus， the opposite bus of the fault line and the opposite bus of the vicinal line， the influence of wave speed and radian of transmission lines is eliminated since the fault distance is function of the three time parameters only. Simulation results show that the method is simple， reliable and precise.