Photovoltaic energy generation is one of the fastest-growing green energy sources. Hundreds of MW of rooftop systems and utility-scale PV parks are installed every year. Best system availability and minimized OPEX (operational expenses) define the profitability of any size of system.
PV systems are directly exposed to environmental conditions due to the fact that they are always installed in extraordinary locations. Because of this,their probability of being impacted by lightning is high. Unprotected PV systems suffer repeated and significant damage to their components. This results in substantial repair and replacement costs, system downtime and loss of revenue. Automation systems, monitoring components and PV inverters must be protected reliably and in line with current standards. IEC and UL standards precisely define the rules to be applied for implementing state-of-the-art PV installations.
Type I and II protection are supported for 600 V, 1,000 V and 1,500 V systems fully compliant with latest EN / IEC standards.
PV plants, which combine many panels in a string, are efficiently protected up to 11 kA of the prospective short-circuit current. Additional fuses for the SPD are not required.
The surge protection devices can easily be plugged in and enable tool-free, fast and cost-effective replacement.
PV plants, including those located in high altitude regions, are reliably protected. An additional risk analysis of deratings is not required for extraordinary locations.
PV systems are at high risk of lightning strikes due to their installation in exposed locations and must therefore be protected against surges in accordance with EN 61643-32. To avoid system failures, high repair costs and loss of sales due to surge damage, powerful PV arresters are the best solution.
PV Protect is the solution for optimal protection of the inverter against overvoltages. The ready-to-connect boxes are available for different system voltages and can be supplied with various arrester types and MPP trackers. Depending on requirements, connection is made via cable glands or WM4C connectors with convenient and reliable PUSH IN connection technology.
PV systems are at high risk of lightning strikes due to their installation in exposed locations and must therefore be protected against surges in accordance with EN 61643-32. The 5-pole product variant is characterized by its compact, space-saving design and enables the connection of two MPP trackers. The complete portfolio includes voltage classes from 600 V to 1,500 V.
The figure on the left shows the general architecture of a PV system. The table below is intended to help you select the correct surge protection products according to the specifications of applicable standards in a PV system.
L1 describes the cable length between the main distribution board and PV inverter (AC side) and L2 describes the line length between PV inverter and PV generator (DC side). With a line length > 10 m, an SPD is required on both sides by the standard.
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