Abstract: A DC electrical power distribution device for an aircraft propulsion duct having a main power supply line configured to supply at least one propulsion assembly of the propulsion duct with power from a high-voltage DC electrical power supply source and including main switching means and fast switching means for connecting the source to the propulsion assembly. The device can include a secondary power supply line configured to be connected to another distribution device and configured to supply the propulsion assembly with power from the other device when the main switching means are open.

Abstract: A control unit for controlling the power of a battery including at first and second incoming connections carrying a DC voltage and first and second outgoing connections delivering a DC voltage. The first incoming connection is connected to a first current sensor and to a high-voltage busbar via a protection member. The high-voltage busbar is connected to the first outgoing connection via a first controlled fuse and a second current sensor, and to a second outgoing connection via a second controlled fuse and a third current sensor. A control means is configured to switch the protection member, the first controlled fuse or the second controlled fuse based on received measurements so as to isolate an electrical fault.

Abstract: A DC electrical power distribution device for an aircraft propulsion duct having a main power supply line configured to supply at least one propulsion assembly of the propulsion duct with power from a high-voltage DC electrical power supply source and including main switching means and fast switching means for connecting the source to the propulsion assembly. The device can include a secondary power supply line configured to be connected to another distribution device and configured to supply the propulsion assembly with power from the other device when the main switching means are open.

Abstract: An electrical propulsion system for an aircraft includes a central bus and a plurality of branches, each branch having at least one electrical power source, at least one electric propulsion device, and a branch bus, connected to each source and to each propulsion device of the branch. Each branch includes a DC/DC voltage converter connecting the branch bus to the central bus, said DC/DC voltage converter being configured to galvanically isolate said branch bus from the central bus.