These are some basic items to look at, as the more extreme they are the higher the repair cost is likely to be:
- What is the cleanliness character of the assembly? (Environmentally Dirty, Soot Covered, Clean)
- Is the source of the contamination from the assembly, or an adjacent unit’s issues?
- Can the general source location be identified? (Capacitor Section/IGBT Section)?
- Is there heavy mechanical damage on driver, frame, busbars, heat sink?
- Is there metallic/plasma splatter from an electrical event visible in the Capacitor or IGBT Sections?
