On 9/23/2019 10:11 PM, Phil Allison wrote:
amdx dickhead wrote:

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Kind of interesting, this website shows an electric motor has a PF of
0.15 with no-load, and 0.7 to 0.85 with a load.

https://www.electricalengineeringtoo...or-common.html

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** Fraid the info is so minimal, it's highly misleading.

Motors used in domestic appliances like washers and fridges operate on full or near full load at all times - so have good PFs.

What they might do off load is not important, as it is very rare.

In any case, the current draw and power consumed off load is much lower.



.... Phil


The reference was to the video where he used an unloaded motor.
Then as you say, "current draw and power consumed off load is much
lower". So how often do you run a motor unloaded and is it worth the
cost of PFC.
How often does a factory run a motor unloaded?
Mikek