> [Steve Katz] I realize that this works to some extent; however, I
> have been unsuccessful in quantifying actual results because the AC
> motors run on reduced voltage have a great reduction in torque and
> thus cannot spin well against back pressure. When I run a standard
> 240V 125cm (4.25") "Boxer" type fan on 120V, I can stall it with the
> tip of my finger very easily, no damage done to finger.
Assuming the motor can take it, motors with start/run windings can be
damaged when operated at low voltage, the only problem is instability
in the fan speed.
A fan motor will wander around in speed a large amount with slight
changes in temperature and pressure when operated at greatly reduced
voltage, and might not always start.
73, Tom W8JI
W8JI@contesting.com
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