Patent ID: 8531803

Claim:
An inverter comprising: two input lines configured to connect the inverter to a DC power source; a buffer capacitance operably coupled between the two input lines; a potential equalization busbar configured to connect to at least one grounding device; an isolation monitoring device configured to monitor an electrical isolation of at least one of the two input lines with regard to the potential equalization busbar; and an overvoltage eliminating device configured to drain overvoltages from the two input lines to the potential equalization busbar, the overvoltage eliminating device comprising at least one overvoltage eliminator; wherein the at least one overvoltage eliminator of the overvoltage eliminating device is connected between at least one input line, whose electric isolation with regards to the potential equalization busbar is monitored by the isolation monitoring device, and the potential equalization busbar, without any fuse being connected in series with the at least one overvoltage eliminator.