Patent ID: 11936221
Assignee: SONNEN GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A battery system, in particular for use in a local electrical grid, the battery system comprising:
at least one battery module;
an output terminal electrically connected to the battery module and serving for charging and/or discharging the battery module from and/or into the local electrical grid;
a disconnector arranged between the battery module and at least one pole of the output terminal and configured to, in an open state, disconnect the electrical connection between the battery module and the at least one pole of the output terminal;
a first signal circuit configured to, in the event of a fault state identified by the battery module, bring about triggering of the disconnector in such a way as to interrupt the electrical connection between the battery module and the at least one pole of the output terminal; and
a second signal circuit configured to, in the event of a fault state identified by the battery module, bring about triggering of the disconnector in such a way that the electrical connection between the battery module and the at least one pole of the output terminal is interrupted,
wherein the disconnector comprises a first holding coil, which is supplied with current by the first signal circuit, and a second holding coil, which is supplied with current by the second signal circuit, wherein the holding coils are configured to hold the disconnector in a closed state, if they are both simultaneously supplied with current.