Factors influencing the selection and installation of surge protective devices for low voltage systems

The present paper aims to illustrate the influence of the main factors which affect the selection and installation of an SPD for the protection of electrical and electronic systems against overcurrent and overvoltage due to direct lightning flash to a structure. The two most typical SPDs are considered, namely switching and limiting type. Simple rules are established for the selection of effective SPD with regard to the discharge current, its protection level and location.

[1]  Josef Birkl,et al.  Modeling the current through the power conductors of an installation struck by lightning , 2011, 2011 International Symposium on Lightning Protection.

[2]  C. Mazzetti,et al.  Surge protective devices for low voltage systems: practical approach for the protection distance evaluation , 2007, 2007 IEEE Lausanne Power Tech.

[3]  C. Mazzetti,et al.  Electronic apparatus protection against LEMP: Surge threat for the SPD selection , 2012, International Symposium on Electromagnetic Compatibility - EMC EUROPE.

[4]  I.A. Metwally,et al.  Enhancement of the SPD Residual Voltage at Apparatus Terminals in Low-Voltage Power Systems , 2007, IEEE Transactions on Power Delivery.

[5]  C. Mazzetti,et al.  Simulated and tested protection effects on electrical equipment terminals at overvoltages incoming through distant SPD , 2011, Proceedings of the 2011 3rd International Youth Conference on Energetics (IYCE).