Fault-Location System of Transmission Line by Wavelet Transform

Abstract

This paper describes the locating system of line-to-ground fault on transmission line by wavelet transform. The possibility of the location with the surge generated by a fault has been theoretically proposed. In order to make the method practicable, we realize very fast processors. We design wavelet transform and location chips, and make a very fast fault location system by processing the measured data in parallel. This system is realized by a computer with three FPGA processor boards on PCI bus. The processors are controlled by UNIX and the system has the graphic user interface with X window system.