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Investigation of very fast-front transient overvoltages for selection and placement of surge arresters

An analysis of the propagation of very fast front transients, generated as a result of switching operations of vacuum circuit breakers, across a photovoltaic plant is investigated. The EMTP-RV version 3.3 computer software platform is used to simulate surge voltage magnification and propagation prior to conduct selection and placement of surge arresters. Results show that selected arresters placed on bus 4 and coordinated with those placed on bus 5 and 3 ensure surge amplitude reduction of 33% on bus 4.

Author(s):

Renato Oliveira    
University of Johannesburg
South Africa

Pitshou Bokoro    
University of Johannesburg
South Africa

Wesley Doorsamy    
wdoorsamy@uj.ac.za
South Africa

 

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