| T O P I C R E V I E W |
| speo |
Posted - 18/11/2007 : 08:36:47
Hi guys,
As I promised to Del, here is some bench tests data, collected by myself for an Ametek 30 and for an Indiana 24vdc (rated 24v@375, 0.5Amps on the label).
I think Indiana 24 is a far better generator than Ametek 30.
Ametek 30:
RPM Volts Amps
100 3.36 1.00
200 6.71 2.00
300 10.07 3.00
400 13.24 3.95
500 16.60 4.88
600 19.92 5.85
700 23.24 6.83
Indiana 24:
RPM Volts Amps
100 6.12 1.64
200 12.24 3.28
300 18.36 4.93
400 24.48 6.57
500 30.60 8.21
600 36.72 9.85
700 42.84 11.49
Here are the graphs:
Volts versus RPM
Amps versus RPM
Volts x Amps versus RPM
To me, it looks like I can say Indiana is making three times more power and cuts in at almost half the Ametek's RPM.
www.windpulse.com |
| 15 L A T E S T R E P L I E S (Newest First) |
| MattieG |
Posted - 19/08/2008 : 09:46:36
OI also have an Indiana motor but its actuallt a bit stiff to turn. Think it needs stripping down. I had no idea though that it would go upto 40 volts, im not thinking of using it for a 24V generator instead of 12. Does anyone know if the front square plate of the Indiana can be removed at all?
Mattie
Mattie |
| mercurybird |
Posted - 18/08/2008 : 22:59:09
Ok I give where in the world would a guy aquire an indiana 24vdc such as that.
E bay doesn't have it Google doesn't produce much either |
| klimb2hi |
Posted - 18/08/2008 : 14:16:42
What are the actual dimensions on the Indiana 24 VDC? I have seen some different Indiana 24 models and they appear to be small than the one in your photo. Thanks.
klimb2hi |
| klimb2hi |
Posted - 18/08/2008 : 14:03:00
Would be interested if a test has been done on the Indiana 50VDC Motor this is the 5 Amp 1100 RPM model.
klimb2hi |
| speo |
Posted - 18/08/2008 : 13:16:31
Mercurybird, no, the Indiana 24 I was talking about is marked #52 in the image below. It is much bigger than Ametek 30.
Speo
www.windpulse.com |
| mercurybird |
Posted - 17/08/2008 : 12:45:55
is the indiana 24 VDC a smaller engine? I found one with the folowing specs
Part No. 2308D-54
Body measures: 3 3/8"(Length) x 2 1/8"(diameter)
Shaft Diameter: 1/4"
Shaft Length: 1"
Permanent magnet. 24 VDC 2.2A 2250RPM
Tapped holes on front plate
Does this soulnd like the unit you guys are using here? Seems small compared to the ametek 30.
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| windnovice |
Posted - 31/07/2008 : 13:30:58
Thanks Speo,
I cant wait to hear back from you with results. I am now glad i purchased this motor seeing as i didnt know what i had when i bought it. I am optomistic about the results.
~WN~
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| speo |
Posted - 31/07/2008 : 03:39:06
windnovice, I tested quite few Indiana 30 and Ametek 30. These were identical: same size, same shaft, same voltage/RPM, same kind of nuts and washers, and they were removed from the same kind of machinery (tape drives).
I couldn't see any differences between Indiana 30 and Ametek 30. None. I would rather use an Indiana 30 instead of Ametek 30, because it has easy acces to the brushes, you don't have to take apart the whole motor. At the end of the next week I will run some tests again and post more data.
Here is an Indiana 30:
Speo
www.windpulse.com |
| Roadkill |
Posted - 31/07/2008 : 01:51:52
quote:
Originally posted by pathiral
Could you please direct me to a place/website where I could get my hands on either one of these motors.
This 'mill:
http://www.velacreations.com/chispito.html
Uses this motor:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=220008972843
The motors you're looking for are hard to find and expensive. |
| windnovice |
Posted - 30/07/2008 : 23:10:08
Hello,
I received a indiana general 30v dc motor awhile back and installed it on my wind turbine but seeing as it is summer my area doesn't get much wind, so i have not been able to see how well it does.
anyways does anyone have a indiana 30v and if so what have they seen out of it, and does anyone know the easiest and best way to test your motor to see what volts and amps you get?
~WN~ |
| pathiral |
Posted - 29/07/2008 : 15:04:05
hey guys,
I'm a bit of newbie in the renewable energy field. I go to college in upstate NY, and my senior projects going to be an affordable wind/solar hybrid system for third world usage. After reading through a lot of forums and websites i've come to understand that the ametek30 or the indiana24 are two of the most promising generators in the dyi wind turbine community. Could you please direct me to a place/website where I could get my hands on either one of these motors.
thanks,
keep up the interesting posts
Prad |
| Mertz |
Posted - 03/01/2008 : 18:01:13
We had very light winds this morning and I noticed that the Ametek was spinning nicely and it was spinning the Indiana backwards. There times in similar conditions when I have the Ametek spinning and the Indiana pointed in the opposite direction and spinning backwards. They are connected in parallel. I think that it would be a good idea to build my next set of blades so they each spin in opposite directions.
We are expected to get some 12 to 18 mph winds this weekend. I will follow up with my findings on Monday.
Mertz |
| Mertz |
Posted - 31/12/2007 : 16:28:31
We had some moderate winds this Sunday so I thought I do an experiment with my 2 gennies. I hooked them up in series without a blocking diode. With this set up the Indiana turned the Ametek against the wind. I guess that is proof enough that the Indiana out performs the Ametek.
Mertz |
| Mertz |
Posted - 17/12/2007 : 21:17:20
Both are radius. It tried using a 40" radius on the Ametek and it was to slow so I cut them down and put them on the Indiana. Total diameter for the Indiana is 64". I am using only 2 blades on the Ametek because I dropped it and broke a blade. I will go back to 3 when I find some more pipe.
Mertz |
| speo |
Posted - 17/12/2007 : 17:07:13
Hi Mertz
2 bladed 30" prop - is that diameter or radius?
3 blades @ 27" - is that diameter or radius?
The Ametek needs a diameter of 4'
I'm not sure yet, but I think the Indiana needs a diameter of about 1.7 meters, which is about 67 inches
My estimates are for 3 wooden blades.
Speo
www.windpulse.com |
