Patent ID: 11913999
Assignee: SIEMENS AKTIENGESELLSCHAFT
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 13:
14. The method of claim 1, wherein the first load zone lined, besides being connectable to the first main line via the circuit breaker, is connectable to the first main line via a series circuit formed by a precharge switch and a precharge resistor, the series circuit being connected in parallel with the circuit breaker, and wherein upon where the ground fault being detected on the second main line of the DC system before the respective load zone is connected, the precharge switch is closed with the circuit breaker being open and with the interrupter switch being open, and a ground fault in the load zone is deduced upon at least one line voltage not changing significantly after the precharge switch is closed.