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How to get from here to there
By robotmaker, Section Homebrewed Electricity Posted on Tue Nov 04, 2003 at 01:37:26 PM MST
I just stumbled across this board, and I must say I am so happy I did.

I have been an advocate of alternate energy for, well, lets just say I was around to see the first issue of Mother Earth News, was a subscriber for quite some time, and have built several of their projects. I currently have a waste oil heater in my 1200 sq ft. shop, and it heats it quite nicely. I have moved on to wind power, and have a burning question that I hope someone like Zubbly or someone can answer. I found several posts for extremely good links on building windmills. And I thank you. I have available to me several sizes of brushless AC servo motors, which at first glance, work EXTREMELY well for generating power. I take the three phase out of the delta wound stator, and put it thru a 3 phase bridge feeding a nice size capacitor bank, and just by turning the motor by hand, produces what looks like a healthy amount of energy. I already cut my first PVC prop this last weekend too, and will attempt to scale it up to a 4" diameter version this weekend. Question: How to get the wire from the motor, down the mast, to the electronics. I have seen a couple references to running it inside the mast? What about twisting?
God I love this stuff!!
rj

How to get from here to there | 7 comments (7 topical)

Re: How to get from here to there (none / 0) (#1)
by drdongle on Tue Nov 04, 2003 at 04:25:06 PM MST

A lot of people don't bother with slip rings and perodicaly untwist the wire or have a plug at the bottom that they perodicaly disconnect and unwind.

Dr.D
Carpe Vigor, Dr.D

Re: How to get from here to there (none / 0) (#2)
by Reno on Tue Nov 04, 2003 at 04:43:43 PM MST

I have two rubber coated wires running down the center of the mast
and when they twist on themselves they act like a spring evenually
the resistance created between the wires will cause the next movement
to spin the other way. I manually wound the genny before putting it up and
after just a little over 2 turns and releasing it it spun completely around.

Re: How to get from here to there (none / 0) (#3)
by zubbly on Tue Nov 04, 2003 at 06:45:47 PM MST

hello Robotmaker. thankyou for the mention of use of some of my ideas as well as from others. being still relatively new to the genny field, i often refer to the advise of others who have already done and experimented in paticular fields with great success. sometimes the simplest ideas and solutions work out to be the best in the long run. the subject of slip rings does ring a bell to me as i have repaired many of these units for years. for some reason i seem to keep adding more projects to the ones i have not yet completed. i do have some ideas on simple slip ring assembles that can be made from discarded circular pump parts. need alittle time though. i will post when i complete the design and model. for now, accept the good advise from the people that have been there and done it.

keep having fun, its what it's all about--zubbly

Re: How to get from here to there (none / 0) (#4)
by kww on Tue Nov 04, 2003 at 06:47:24 PM MST

A method I saw here somewhere which I used on mine was to bolt a short cable with some slack between the top(turning part) and stationary pole. The cable keeps it from winding one way too much. They say it will unwind itself eventually if it winds all the way up.
Kevin

Re: How to get from here to there (none / 0) (#5)
by robotmaker on Wed Nov 05, 2003 at 09:00:06 AM MST

Thanx for all the feedback, I really appreciate it. I still have to work out how the cable will get INTO the mast at this point, but being a model engineering student, wanted to explore all the obvious pitfalls first. Thanx again.
rj

[ Parent ]

Re: How to get from here to there (none / 0) (#6)
by kww on Wed Nov 05, 2003 at 10:52:13 AM MST

I just drilled a hole and smoothed the edges where my romex goes into and comes out of the mast.
Kevin

[ Parent ]

Re: How to get from here to there (none / 0) (#7)
by desertratjack on Thu Nov 06, 2003 at 08:37:13 AM MST

I have run the cable inside the mast with some slack for the two wires to wind up and down (#6 THWN/THNN). No problems after a month and others say that there is never a problem with this arrangement (although they recommend the more flexible welding wire).

How to get from here to there | 7 comments (7 topical)

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