diana 🏳️⚧️🦋🌱Working with vintage power today from the early 1990's when my career started. The newer motor drives are a small fraction of this size. Most of the bulk is magnetic chokes and capacitive resistive snubbers filtering the voltage spikes from the semiconductor triacs. The other half of the cabinet, not shown, are even more massive transformer filters. We are documenting why this motor drive has failed increasingly over the last several months. The motor it powers is only 150 horsepower, or about 110 kilowatts.
European Sustainable Energy We