Components for low-voltage surge protection

2015 ◽  
Keyword(s):  
Low Voltage ◽  
Surge Protection

scholarly journals Development issues of catenary surge protection system based on a varistor surge arresters

2018 ◽  
Vol 19 (6) ◽  
pp. 43-46
Author(s):  
Andrzej Białoń ◽  
Łukasz Zawadka
Keyword(s):  
Test Section ◽  
Low Voltage ◽  
Wave Impedance ◽  
Protection System ◽  
Surge Arresters ◽  
A Value ◽  
Optimal Distance ◽  
Surge Protection

The article presents na issue of determinating an optimal distance between varistors located on 3 kV DC catenary. Line attenuation as a function of distance has been determined during preliminary tests for the following measurement configurations: catenary network unloaded (open), catenary network charged by a value of resistance close to the value of wave impedance of the catenary network test section, catenary network charged by a low voltage varistor. The results allowed to estimate the optimal distance between the varistors and they were verified on the catenary network on Żmigród Test Ring using a surge generator with an amplitude of about 15 kV and varistors designed to work in railway enviroment. The methodology and results of these studies were presented and analyzed in this paper.

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