Utilizing the head timing interval polarity wave traveling wave of a single-ended fault location methods

The present invention provides a use of the polarity of the first wave timing interval of Single Ended fault location method belongs to the technical field of power system protection. Transmission lines from lightning and lightning flashover point and the point is inconsistent, the measurement of the detector current traveling wave and record data; traveling wave according to relevant characteristics of lightning and the point of fault determined point distribution transmission lines, using wavelet transform modulus maxima popular electric wave data is solved to obtain traveling wave on a time axis; polar reaches the measurement end of the traveling wave and the arrival time of calibration, the same properties using a first wave cycle occurring (i.e., adjacent the first wave timing interval corresponding relationship) and the location of the fault, the fault distance is obtained through a corresponding plurality of groups of formula for averaging the plurality of sets of the fault from fault location result obtained. Having a distance measuring equipment investment can be reduced, the range error is small.