Traveling Wave Relations Applicable to Power-System Fault Locators

1951 ◽  
Vol 70 (2) ◽  
pp. 1671-1680 ◽  
Laurel J. Lewis
2012 ◽  
Vol 150 ◽  
pp. 40-44
Peng Peng Kang ◽  
Xi Fang Zhu

This paper describes the wavelet transform theory, and traveling wave theory. When the power system transmission line fault occurs, the fault signal generated by sampling and analysis, and use a method of one-end fault distance measurement in transmission line. Finally the article gives the ranging devices’ hardware and software design.

Bin Li ◽  
Jiawei He ◽  
Ye Li ◽  
Botong Li

AbstractThe multi-terminal VSC-HVDC grid is believed to be widely applied in the future power system. The dc line protection is the key technique for operation security and power supply reliability of the dc grid. In this paper, the single-ended protections, namely, the traveling-wave based protection and transient-variable based protection, as well as the pilot protections, mainly including the directional pilot protection and current differential protection, are discussed in detail. With the analyzed protections, the effective main and back-up protection strategy can be configured for the dc line in multi-terminal VSC-HVDC grid.

2019 ◽  
Vol 139 ◽  
pp. 01062
Pavel Pelevin ◽  
Anton Loskutov ◽  
Timur Sharafeev

The application of combined overhead and cable power lines (OCPLs) of 110 kV voltage rate and higher call for new features for power system protection and automation devices. One of the most urgent is the problem of autoreclosing (AR) of OCPL. One or another solution to this problem significantly affects the reliability and efficiency of the OCPL operating. In many countries, both non-selective AR and selective AR are used. A method of selective AR of OCPL based on traveling waves is proposed, which increases the reliability of OCPL protection and automation. The method uses a special procedure of traveling wave pattern classification for faulted section identification.

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