3phase & Re: 50uF + suplus motor run caps sources???
Posted by
Lee Studley
on 2000-09-28 08:55:57 UTC
Thanks Darrel,
Yeah, even though it might be fun on the 4th, I agree its not a
good idea.
BTW
I've seen a figure of 50-70uF/HP for the motor 'start' caps, but I've
seen varying figures for the motor 'run' values. I know it will be
an empirical exercise to fine tune, but is there a rule-of-thumb
for these 'run' values?
Some designs exclude them all together.
I'm targeting 7.5HP and 10HP idler motor. (got a deal on 2 motors)
-Lee
-- In CAD_CAM_EDM_DRO@egroups.com, "Darrell" <dgehlsen@e...> wrote:
Yeah, even though it might be fun on the 4th, I agree its not a
good idea.
BTW
I've seen a figure of 50-70uF/HP for the motor 'start' caps, but I've
seen varying figures for the motor 'run' values. I know it will be
an empirical exercise to fine tune, but is there a rule-of-thumb
for these 'run' values?
Some designs exclude them all together.
I'm targeting 7.5HP and 10HP idler motor. (got a deal on 2 motors)
-Lee
-- In CAD_CAM_EDM_DRO@egroups.com, "Darrell" <dgehlsen@e...> wrote:
> From: "Lee Studley" <indigo_red@u...>
>
> If you put these on a 220 volt line, be ready for some loud
> explosions.
> For 220 I wouldn't use less than 400 volt rated.
> Darrell
>
> >
> > I have 20 6uF run caps, but they are only 236vac rated.
> Is
> > this cutting it too close? Takes up alot of space too.
> Luckily they
> > only cost me $19 total. Anyone need some if they dont work
> out?
> >
> > I'm using the design that has a potential relay for
> starting.
> > Already got that from Grainger.
> >
> > Thanks in advance for any input.
> >
> >
> >
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Discussion Thread
Lee Studley
2000-09-27 20:38:29 UTC
50uF + suplus motor run caps sources???
Lee Studley
2000-09-27 20:39:17 UTC
50uF + suplus motor run caps sources???
Ken Thompson
2000-09-27 20:58:44 UTC
RE: [CAD_CAM_EDM_DRO] 50uF + suplus motor run caps sources???
Lee Studley
2000-09-27 21:32:14 UTC
Re: 50uF + suplus motor run caps sources???
Ken Thompson
2000-09-27 22:06:22 UTC
RE: [CAD_CAM_EDM_DRO] Re: 50uF + suplus motor run caps sources???
Lee & Chris studley
2000-09-28 06:58:53 UTC
RE: [CAD_CAM_EDM_DRO] Re: 50uF + suplus motor run caps sources???
Darrell
2000-09-28 08:29:31 UTC
Re: [CAD_CAM_EDM_DRO] 50uF + suplus motor run caps sources???
Lee Studley
2000-09-28 08:55:57 UTC
3phase & Re: 50uF + suplus motor run caps sources???
Darrell
2000-09-28 15:38:49 UTC
Re: [CAD_CAM_EDM_DRO] 3phase & Re: 50uF + suplus motor run caps sources???
John Craddock
2000-09-29 16:24:43 UTC
RE: [CAD_CAM_EDM_DRO] 3phase & Re: 50uF + suplus motor run caps sources???
"Grif" w. keith griffith
2000-09-29 16:40:11 UTC
RE: [CAD_CAM_EDM_DRO] 3phase & Re: 50uF + suplus motor run caps sources???
Lee Studley
2000-09-29 16:43:34 UTC
3phase & Re: 50uF + suplus motor run caps sources???
Lee Studley
2000-09-29 17:29:08 UTC
3phase & Re: 50uF + suplus motor run caps sources???
John Craddock
2000-09-29 17:55:37 UTC
RE: [CAD_CAM_EDM_DRO] 3phase & Re: 50uF + suplus motor run caps sources???
Dan Falck
2000-09-29 18:11:30 UTC
Thermwood trip
Lee & Chris studley
2000-09-29 19:15:33 UTC
Re: [CAD_CAM_EDM_DRO] 3phase & Re: 50uF + suplus motor run caps sources???
Darrell
2000-09-29 21:00:56 UTC
Re: [CAD_CAM_EDM_DRO] 3phase & Re: 50uF + suplus motor run caps sources???
Lee & Chris studley
2000-09-29 21:39:20 UTC
Re: [CAD_CAM_EDM_DRO] 3phase & Re: 50uF + suplus motor run caps sources???
Darrell
2000-09-29 22:36:26 UTC
Re: [CAD_CAM_EDM_DRO] 3phase & Re: 50uF + suplus motor run caps sources???
ptengin@a...
2000-09-30 01:56:28 UTC
Re: [CAD_CAM_EDM_DRO] Thermwood trip
"Grif" w. keith griffith
2000-10-02 08:12:24 UTC
Re: [CAD_CAM_EDM_DRO] 3phase & Re: 50uF + suplus motor run caps sources???
Lee & Chris studley
2000-10-02 08:48:26 UTC
Re: [CAD_CAM_EDM_DRO] 3phase & Re: 50uF + suplus motor run caps sources???
Lee & Chris studley
2000-10-02 08:55:46 UTC
FYI: Home Depot Good buy on conns/cables 20' 3Phase
wanliker@a...
2000-10-02 09:01:06 UTC
Re: [CAD_CAM_EDM_DRO] 3phase & Re: 50uF + suplus motor run caps sources???
cnc002@a...
2000-10-02 13:28:57 UTC
Re: [CAD_CAM_EDM_DRO] FYI: Home Depot Good buy on conns/cables 20' 3Phase
ballendo@y...
2000-10-02 21:49:25 UTC
Re: FYI: Home Depot Good buy on conns/cables 20' 3Phase