Carlo Gavazzi's DSF Surge Arrestors Protect Combiner Boxes in Photovoltaic Systems

Provided with technology compliant with future standards, the DSF PV series can replace present SPD (surge protective device) solutions in photovoltaic systems. Lainate, March 2011 – Carlo Gavazzi Automation - the international electronics Group with activities in the design, manufacturing and marketing of electronic equipment, presents DSF PV, the Type 2 (Class C) surge system suitable for protecting PV systems from transient over-voltage due to both indirect atmospheric discharge and switching actions.

Developed by Carlo Gavazzi Controls unit in Belluno (Italy), DSF PV is compliant with future norms and can replace older equivalent products with a surge protection solution that needs no backup fuse, this function already being performed by DSF itself. “The DSF series will allow us to extend our SPD offers to other nominal voltages and be recognised as a global supplier of comprehensive solutions for the renewable energy market, providing the market with the best state-of-the-art technology relevant to surge protection” –Andrea Bernardi, Product Manager states. “We are confident that this new range of surge arresters will become a ‘must have’ component for any combiner box used in PV applications”.

Thanks to this innovative technology, it is now possible to preserve the internal varistor from any leakage current that could cause damage and aging when the nominal DC voltage of the plant is temporarily exceeded (e.g. in the case of wrong connections and during the morning when solar panels are cold). At the end of the varistor’s life, this special technology allows the SPD to be safe if a short-circuit should occur. The red optical indication enables easy checking of the protection status, while voltage-free contacts are included for remote status monitoring. Furthermore, easily removable plug-in cartridges ensure fast and easy maintenance, while the DIN-rail housing makes it suitable for every type of distribution box.

Main technical features
• Type 2 (class C) according to EN61643-1, UTEC 61-740-51
• Ready for French UTEC 61-740-51 and the future EN 50539-11
• Innovative leakage current limitation system, avoiding damage even in the case of sustained overvoltages
• New technology protecting the varistor in case of TOV (temporary overvoltages)
• Plug-in cartridges
• Optical indication of the correct working of the cartridge (red warning light)
• Voltage-free contact, for remote function monitoring
• Including thermal and dynamic separating device
• Assembled unit ready for mounting
• Marked connections
• For DIN-rail mounting

Comments

Popular posts from this blog

What is Class I Division 2?

FUSE SIZING CONSIDERATIONS FOR HIGHER EFFICIENCY MOTORS

7/8 16UN Connectors that Provide 600 Volts and 15 Amps