Fastest Known Method to Reliably Detect Overcurrent in Protective Devices for LVDC System
Johannes Gehring, research scientist in the DC Grids Group of the Intelligent Energy Systems Department at Fraunhofer IISB has been honored with the Fraunhofer IISB R&D Award 2024 for his invention of an overcurrent limiting and detection unit (OLDU).
OLDU offers unbeatable advantages as a detection unit in protective devices, especially for DC applications, such as in electric vehicles, charging stations, local DC or on-board grids for ships and aircraft, where very fast switch-off times and short-circuit current limitation are required.
OLDU can be used in switchgear for currents of up to several thousand amperes with ultra-fast detection in the nanosecond range, is implementable as a pure hardware solution and also cost-effective. Furthermore, it is compatible with IEC 60947-10 and has already been filed for a patent (EP23202843).
We congratulate Johannes Gehring on his invention.
That's the true spirit of innovation!
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