There are all kinds of faults in tr

There are all kinds of faults in transmission line when
electric energy transmits. At present, there are many methods
to locate the fault of transmission line, in which traveling
wave has become popular because it can be easily understood
and is not sensitive to fault types and line asymmetry [1].
Wavelet analysis is a multi-resolution technique that can show
the local character of signal both in time and frequency
domain [2]. Therefore, the wavelet is very suitable to analyze
the traveling wave after faults occur. It is widely applied to
locate the transmission line fault and much research work has
been done on it [1]-[3].