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Old 08-25-14, 12:56 AM   #18
ICanHas
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Quote:
In one video... where someone installed a VFD on a central A/C, the amperage draw went down, not just the wattage. Granted that was under a specific set of conditions (no doubt including an A/C that was oversized to begin with), but that means the overall VA draw also went down.
Not all VFDs are the same. What is true to a harmonic reduced VFD do not translate to the same holding true for the stripped down bare minimum VFD one buys from Alibaba.

A 500W 1kVA load from a very lightly loaded induction motor do not produce the same level of losses in the transformer as diodes and capacitors used in computers.

Maybe we need more implementations of electromechanical pneumatic modulated technology such as the Copeland Digital modulating devoid of all this power electronics crap.
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