Method for operating load-side static inverter of voltage intermediate circuit converter, involves disconnecting load-side static inverter as soon as value of its input voltage is equal to pre-determined value of safety threshold voltage

摘要

The method involves disconnecting the load-side static inverter (10) as soon as the value of its input voltage (U-zw) is equal to the pre-determined value of the safety threshold voltage, and testing the main voltage (U-netz) of the feeding network (6) regarding its point of rating. The operation of the load-side static inverter is resumed. An independent claim is also included for a device for operating a load-side static inverter of a voltage intermediate circuit converter.