The first photovoltaic systems have been equipped with the Power Switch Box from Germany-based RCT Power. The Power Switch Box interacts with the battery storage system to keep the photovoltaic system functional. The gadget shows its true potential and capabilities when the network breaks down. During a power failure box all-pole disconnects the domestic network from the mains supply. It creates a stand-alone grid in combination with the DC-connected RCT Power Storage.
In emergency power supply mode, there are up to six kilowatts of power available, depending on battery capacity and the size of the installed RCT Power Storage. In three-phase current mode a maximum of three times two kilowatts power can be utilized. Customers have the choice to switch at any time between a classic three-phase power supply system or an one-phase distribution grid, where the three phases are bridged. (nhp)
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