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low RPM rumble
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14
comments (14 topical, editorial)
Re: low RPM rumble
(
3.00 / 0
) (
#13
)
by dbcollen on Wed Apr 23rd, 2008 at 10:57:23 PM MST
(
User Info
)
When I first put up my 48 volt 10 footer I had 3 35 amp single phase bridges to rectify the ac to dc. It was really noisy, loud hum above cut in. I replaced the single phase bridges with a 100 amp 1600 volt 3 phase bridge and the noise was reduced quite a bit, not gone though.
Dustin
Mad River Wind and Hydro
Re: low RPM rumble
(
3.00 / 0
) (
#14
)
by TheCasualTraveler (
a.miklos@yahoo.com
) on Thu Apr 24th, 2008 at 07:32:43 PM MST
(
User Info
)
http://thecasualtraveler.com/wind.htm
You know Dustin, come to think of it I changed the rectifiers on this machine also, from six individual rectifiers to three bridges. It didn't make noise before but then again that was without the second disc. I have room in the middle of the stator to add a 2" bushing of some sort between discs. If that doesn't dampen it maybe changing the bridges will. Thanks.
Andy
[
Parent
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low RPM rumble
|
14
comments (14 topical, 0 editorial)
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