Sma Solar Technology Ag

Simon Butterweck

Oliver Prior

Felix Muehlhausen

A device for current determination includes a shunt and a device for temperature measurement including a printed circuit board, an evaluation unit and a temperature sensor. The printed circuit board has a milled groove which runs spirally around the temperature sensor, so that the temperature sensor is arranged on a printed circuit board plateau defined by the milled groove and is displaceable in a direction that is parallel to a normal vector of a plane defined by the printed circuit board. When the temperature sensor is displaced relative to the plane of the printed circuit board, a restoring force is brought about between the printed circuit board and the temperature sensor, wherein the shunt includes a resistance region having a substantially flat surface, wherein the device for current determination is arranged in the resistance region on the surface of the shunt in such a way that the temperature sensor is arranged in thermal connection with the resistance region of the shunt, wherein voltage taps are arranged on both sides of the temperature sensor and electrically contact the surface of the shunt in order to detect a potential difference along the resistance region.

Device for temperature measurement

A photovoltaic energy generation system with a string including a series connection of solar modules, which string is electrically connected to an inverter via power lines for converting and feeding electrical power from the string into a network. The inverter is configured to obtain an alternative operating power from only one of the solar modules in the event that normal operating power can be obtained neither from the network nor from the entire string. A supply line can supply the alternative operating power to the inverter. Furthermore, the connectors and mating connectors of such a supply line are described, which can also be installed with an inverter.

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Helsa, Germany

Simon Butterweck