Variable-speed drive solutions are used in all branches of modern industry. The aha Zweckverband Abfallwirtschaft, Region Hannover in Germany, has also benefited from the many advantages of modern asynchronous three-phase AC motors powered by frequency inverter drives.
The installation of FR-F740 frequency inverter drive systems from Mitsubishi Electric has drastically reduced the operating and servicing costs at the association’s leach water treatment plant, recouping the investment costs of around €70,000 in the space of just two years.

More information (PDF) from Mitsubishi Electric

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