Capacitors boost efficiency

Film capacitors are much more reliable than the electrolytic capacitors that are traditionally used in this application and their adoption means that one of the most common sources of VSD problems is entirely eliminated.

The film capacitors used in VACON drives have no significant inherent ageing processes and have a typical operating lifetime in excess of 100 years. If they should sustain minor damage they self-repair, and they are unaffected by elevated operating temperatures that would greatly reduce the life of electrolytic capacitors.