Three speed fan

[Ted Edwards]

I'm guessing: Do these work by having a two pole and four pole
arrangement? Switch in thw two pole and get 3600- rpm, switch to four
pole and get 1800- rpm, switch in both for six poles and get 1200- rpm.
The geometry migh be somewhat screwed up in 4- and 6- pole
configuration but those are working at pretty low power.

I ask because my neighbour has one of these that only works on high
speed. I suspect the switch but before we commit surgery on it, I'd
like to understand how the thing is suposed to work. TIA

Ted

 

[Tam/WB2TT]

"Ted Edwards" <Ted_Espamless@telus.net> wrote in message
news:YaMoe.33114$wr.7008@clgrps12...

I'm guessing: Do these work by having a two pole and four pole
arrangement? Switch in thw two pole and get 3600- rpm, switch to four
pole and get 1800- rpm, switch in both for six poles and get 1200- rpm.
The geometry migh be somewhat screwed up in 4- and 6- pole configuration
but those are working at pretty low power.

I ask because my neighbour has one of these that only works on high speed.
I suspect the switch but before we commit surgery on it, I'd like to
understand how the thing is suposed to work. TIA

Ted

If this is a small fan, it is a lot cruder than that. The one on my range
hood is continuously variable by means of a potentiometer. I know of
somebody who has a ceiling fan hooked up to a circuit with a light dimmer.
The light dimmer will vary the speed. Yes, I told them they shouldn't do
that.

Tam