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

Claim 17:
18. The load control apparatus according to claim 9 wherein the control unit of the load control apparatus is adapted to determine whether the received supply voltages at the different input terminals or load currents provided for different phases at different output terminals indicate a symmetrical power supply of the connected load by the power supply network connected to the input terminals of the load control apparatus on the basis of the supply voltage profile data stored in the data memory of the control unit and wherein the control unit of the load control apparatus is adapted to determine whether a load is connected to the output terminal on the basis of the profile data stored in the data memory of the control unit, wherein the control unit is adapted to switch off automatically the power switches if an unsymmetrical power supply of the load control apparatus by the power supply network or an unsymmetrical power supply of the load by the load control apparatus is recognized by the control unit.