Fault location method in wide area general traveling wave power signal

The present invention discloses a method of fault location WAN traveling wave power signal in general, a small fault in the power line configured monitoring points wave case, the header information is obtained by an initial wave maxima Sagami wavelet transform and analog signal after troubleshooting ; achieved in the case of complex power traveling wave two-terminal extensions, provides a generic method for fault location on the basis of the grid, to find out the rapid and accurate measurement data from the two-terminal ranging composition, improved results by the correction ranging accuracy. By monitoring and data processing and inspection, to ensure that any point of failure in the system can achieve traveling wave two-terminal extensions, with good fault tolerance.