POWER SUPPLY ARRANGEMENT

The present application relates to a power supply arrangement comprising a power source and a switching arrangement. The switching arrangement includes a switching block, wherein the switching block includes a source interface for connecting the power source, a load interface for connecting a load and a grid interface for connecting a power grid. The switching arrangement includes further a controller for controlling the switching block in dependency of the condition of the power source. The switching arrangement is implemented as a unit separate from the power source. The power supply arrangement comprises further a monitoring device for monitoring the condition of the power source.