Patent ID: 11874337
Assignee: SIEMENS AKTIENGESELLSCHAFT
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 5:
6. A DC system, comprising:
at least one energy source;
a load zone comprising a connection interface connected to the at least one energy source, with the at least one energy source supplying the load zone with electrical energy;
a DC bus;
an electronic switch arranged between the connection interface and the DC bus and configured to interrupt the electrical connection between the energy source and the DC bus;
at least two electrical devices, each electrically connected in parallel to the DC bus;
a fuse arranged between the DC bus and a respective one of the at least two electrical devices;
a voltage sensor configured to measure a voltage across the fuse; and
an evaluation unit configured to identify a defective device based on a polarity of the voltage measured by the voltage sensor across the fuse of the defective device.