Patent ID: 11967916
Assignee: FUTURE SYSTEMS BESITZ GMBH
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 25:
26. A busbar system comprising busbars to which at least one load control apparatus is connected, wherein the control apparatus comprises an overcurrent protection circuit having at least one input terminal adapted to receive a supply voltage from a power supply network and having a power switch through which the connected electrical load receives an electrical load current and having a current rise speed sensor component connected in series with the power switch and adapted to generate directly a voltage drop corresponding to the current rise speed of the electrical load current flowing from the input terminal of the load control apparatus via the current rise speed sensor component and the power switch to the output terminal and having a driver circuit which comprises a low voltage side and a high voltage side, wherein the low voltage side of the driver circuit is connected to a control unit and the high voltage side of the driver circuit is connected to the power switch, wherein the driver circuit is adapted to detect an occurring overcurrent depending on the voltage drop generated by the current rise speed sensor component and/or depending on a non-linear voltage drop along the power switch applied to a drive input at the high voltage side of the driver circuit, wherein the driver circuit is adapted to switch off said power switch if a configurable threshold voltage is exceeded within a predefined switch-off period,
said load control apparatus of said busbar system further comprising a power supply control circuit having a voltage sensor component adapted to measure at the input terminal the supply voltage notified by the voltage sensor component to the control unit of the load control apparatus to provide a supply voltage profile stored in a data memory of the load control unit, wherein the control unit is adapted to control an electrical power supplied to the connected electrical load depending on the supply voltage profile and depending on a load current profile stored in the data memory of the control unit.