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b351267
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| Posted: 08 February 2010 at 6:52pm | IP Logged
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Can anybody help me identify the model and votage of my Dunlite Wind Generator. The only information I have is the serial number 10326, the field resistance 50 ohms and the armature resistance measured bettween the two brushes 13 ohms. I have had it for over 30 years and when I bought it I was told it was a 48 volt ex PMG (now called Telstra) but I would really like to confirm this before I try to put it into service. I think it coud be either a model L or M. I was even able to buy 3 brand new blades off Dunlite back in the 70's but they could not help me with any other information. I am hoping it is a 48 volt model.
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Downwind
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| Posted: 08 February 2010 at 7:12pm | IP Logged
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Do you have a photo.
There was a thread a few weeks ago on dunlite generators.
One of the links posted there had some information
Link here.
Pete.
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b351267
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| Posted: 08 February 2010 at 7:39pm | IP Logged
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Downwind wrote:
Do you have a photo.
There was a thread a few weeks ago on dunlite generators.
One of the links posted there had some information
Link here.
Pete. |
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b351267
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| Posted: 08 February 2010 at 7:45pm | IP Logged
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Thanks for the quick reply, here is a picture, I have seen the link you mention but although it is a very good archive of information, it not help me indentify my machine.
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Bergen
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| Posted: 09 February 2010 at 9:53pm | IP Logged
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It is either a L or M. To tell, you need to work out the gear ratio to tell. I do have a copy of the manual if you want a photo copy. If it did come from PMG, it will most definitely be 48v. Other than running it, its not easy to tell the voltage otherwise.
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KarlJ
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| Posted: 10 February 2010 at 7:38am | IP Logged
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lets see the brand new blades from the 70's
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Notdemocracy
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I also have a Dunlite Ex PMG Wind Generator. It is a 48 Volt unit but has 4 blades to it. It's History is that 22 years ago it was removed from the Telephone exchange that it powered (remote location, off the grid) and it fell damaging the blades. The entire unit was overhauled and a new set of blades was supplied as well as a new hub. I purchased this unit from a chap that was not on the grid and had purchased it 21 years ago with the intention of putting it up. He sold it to me 1 year ago when he connected to the grid. At that time he told me it was un-usual in that it had 4 blades and not 3. He also said there were a small number of 4 blade units made for lower wind areas. The generator looks like the one in the photo and it seems in excellent condition. If you want I can get the old Fluke out and make some measurements for comparison?
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b351267
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| Posted: 10 February 2010 at 1:35pm | IP Logged
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James, The gear ratio as near as I can tell is 3.5:1
Karl, Picture attached of the new blades as requested still in their wooden crate , they cost me $265.00 in 1980.
John, Please give me the resistance measurments for the field windings and between the two brushes. I was really hoping someone would offer to to do this.
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b351267
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| Posted: 10 February 2010 at 1:42pm | IP Logged
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Picture of new Dunlite blades still in their wooden crate,
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Notdemocracy
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Don, I took the cover off and measured only 1 ohm on the brushes in contact. I then lifted 1 brush and read 30 Ohms brush to brush. Measuring the red and black wires on the terminal block between the brushes (with both brushes in contact it read 30 Ohms. Any help to you? If you want me to make further readings just ask.
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KarlJ
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| Posted: 10 February 2010 at 9:34pm | IP Logged
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wow, thats three ? dunlites in as many weeks we've uncovered, thats almost enough to have a convention!
BTW Notdemocracy dare we ask how much? sound like a ripper find.
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Darren
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Hi Don I have a old Dunlite as well that Iam giving a birthday to and I see you have some red bob weights in that crate.
Could you do me a big favor and take some measurements of them Iam missing these parts.
A weight would also be helpful.
Thanks
Darren
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Topic: Old Dunlite Wind Generator
