I'm trying to design a solid-state circuit breaker for a 3-phase AC system with a rating of 690 V, 1000 A.
As the stray inductance contributes to the voltage peaks in the system I'm trying to protect the power electronic devices in several fault conditions. Currently I'm simulating several topologies of the same with Simetrix.
It is, however, difficult to find practical values like stray inductance, resistance etc. in the system, to get more practical results from simulations. I've been simulating with a lumped inductance of about 10 mH until now.
What are the factors that I need to keep in mind while designing the same? Also, where can I find the required values to model the circuit efficiently?
This is the single-phase equivalent. Ignore the values of the devices for now.