Phoenix Contact PV sets with surge protection for MPP tracking
Phoenix Contact now offers PV sets that combine two MPP (maximum power point) trackers for surge protection.
MPP tracking is the job of the inverter in photovoltaic systems. In most cases, string inverters have two MPP trackers. Each individual MPP tracker is responsible for extracting the maximum power from the connected strings. The Phoenix Contact device in the PV set can simultaneously protect two MPP trackers via two separate ‘plus’ and two separate ‘minus’ inputs.
Both trackers split the path to the protective conductor in the V circuit. This is claimed to reduce surge protection costs, as well as the manufacturing costs for the PV set itself. In addition, the user only needs one protective conductor connection for both MPP trackers.
Originally published here.
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