Selection Guide fo Low Voltage Surge Arresters

OData support
Cselkó Richárd
Department of Electric Power Engineering

My thesis is written about designing coordinated low voltage surge protection systems. The purpose is helping the designer and give a systematic description about the most important parts of this topic, and give the Reader a view about what kind of surge protection devices are used nowadays.

I organized the parts of this topic the following way: First, I described how can atmospheric high voltage reach our energy supply system, then I wrote down the most specific lightning parameters to describe the order of magnitude. Then I showed what kind of typical protection devices are available in the present, and gave a short description about its’ main parameters. Then I wrote down how the protection system works. After these theoretical parts I described the most important preconditions to know before start planning, based on the concerning standards and literature. Then I described the steps of calculating data for the system planning, where I also based my statement on standards.

The second main part was written about manufacturers’ devices. I summarized the regulations of the manufacturers’ about how to plan a coordinated system, then I showed the main distinctive functions about the product lines. I studied about three manufacturers: Schneider Electric, Phoenix Contact, and Dehn + Söhne.

In the third part I created a product chooser software. During my work I collected 250 devices’ catalogue datas in a database, and then I created a surface where the user can give main criteria parameters about choosing from this database. I wrote complicated excel functions and a visual basic macro. to reach the goal of my conception. It helps the designer to choose without reading hundreds of pages of catalogues, and gives a good view about the differences between the manufacturers’ devices.


Please sign in to download the files of this thesis.