I am trying to create an overvoltage by switching off an inductive circuit which is feed by a dc-voltage source.
The goal is to simulate a contactor that swithces off the inductance an this dreates an overvoltage which a varistor shall reduce.
Unfortunately I was not able to create this overvoltage by using a switch or breaker (controlled by a step). The failure message is mostly: The failure message is:
"The current through inductor Ueberspannung_01/L1 is forced to jump from 81967.7 to 0."
In LTSpice I was able to dreate an overvoltage with a controlled current source (ramping down the current from e.g. 10kA in 10ms to 0A), but this is also not allowed in Plecs.
Does somebody have an idea to model a realistic contactor switching of an inductive circuit creating an arc voltage and overvoltage ?