Power protection system

A power protection system comprising:

• a first direct current (DC) power source having a positive terminal and a negative terminal;
• a first load;
• a first power bus connecting the first DC power source and the first load, wherein the first power bus comprises a high side voltage rail connected to the positive terminal and a low side voltage rail connected to the negative terminal;
• a first solid state circuit breaker circuit integrated in the first power bus,
• wherein the first solid state circuit breaker circuit is located at a power source side or at a load side of the first power bus, and
• wherein the first solid state circuit breaker circuit comprises:
• a first semiconductor switch arranged in the high side voltage rail or in the low side voltage rail and configured to be controlled by a controller;
• a first capacitor arranged between the high side voltage rail and the low side voltage rail, wherein the first capacitor is arranged between the high side voltage rail and the low side voltage rail closer to the power source or to the first load than the first semiconductor switch, and wherein a terminal of the first capacitor is arranged between the first semiconductor switch and the power source or between the first semiconductor switch and the first load;
• and
• a first inductor in the high side voltage rail or the low side voltage rail, wherein the first inductor is positioned such that current generated by the first capacitor when unloading in case of a short circuit at the power source or at the first load passes the first inductor,
• wherein the controller is configured to measure a voltage change over the first inductor and trigger an actuation signal for the first semiconductor switch when the voltage change over the first inductor surpasses a predetermined threshold voltage.