I haven't begun the building, I was hoping to setup the rotating disc for the magnets and the one for the coils today but I need to know if i can coil it with speaker wiring? I also have bare copper wire but i'm 100% sure that will short the entire project.
A quick drawing would be helpful... 🙂
If you use permanent magnets you should build a ... what's the English word for 'Innenpolmaschine'? ... I mean, a generator where the coils in which the output voltage is induced are located in the stator, the non-moving part of the generator, while the excitation field is generated by the rotor. This is easier to construct with permanent magnets, as you don't need wiping contacts on the rotor. The permanent magnets don't need a power supply 😉
If you use permanent magnets you should build a ... what's the English word for 'Innenpolmaschine'? ... I mean, a generator where the coils in which the output voltage is induced are located in the stator, the non-moving part of the generator, while the excitation field is generated by the rotor. This is easier to construct with permanent magnets, as you don't need wiping contacts on the rotor. The permanent magnets don't need a power supply 😉
Ah,
we posted at the same time. A rotating disc for the magnets sounds like the principle I had in mind.
To the native English speakers here: Can anyone give the correct terms for these?
German 'Innenpolmaschine', see post above
German 'Außenpolmaschine' - a generator setup where the excitation field is generated in the stator while the generated voltage is taken from the rotor.
Back to topic: You cannot use the bare copper wire, as the windings will short against each other. Try your luck with the speaker wire, but anything conductive with a thinner insulation will do a much better job...
we posted at the same time. A rotating disc for the magnets sounds like the principle I had in mind.
To the native English speakers here: Can anyone give the correct terms for these?
German 'Innenpolmaschine', see post above
German 'Außenpolmaschine' - a generator setup where the excitation field is generated in the stator while the generated voltage is taken from the rotor.
Back to topic: You cannot use the bare copper wire, as the windings will short against each other. Try your luck with the speaker wire, but anything conductive with a thinner insulation will do a much better job...
I can send you a smaller version of what I am doing as the stator / rotor
http://www.re-energy.ca/docs/hydroelectric-generator-cp.pdf Go to that then scroll down to the rotor/stator section, that is what I am doing. But mine will be slightly bigger in a permaglass box.
http://www.re-energy.ca/docs/hydroelectric-generator-cp.pdf Go to that then scroll down to the rotor/stator section, that is what I am doing. But mine will be slightly bigger in a permaglass box.
What if you get a small electric motor and use that as your generator? You could run a waterwheel type of vane system and maybe get enough juice to light an LED instead of a light bulb?
Its a ISU (Independnt Study Unit) All the teacher does is tell me to build a generator, what I must do is up to me.
I don't want any electric motors in the project, the led/lightbulb is just a bonus but instead I can plug it into a multimeter and see if it gives off any sort of power.
Nice project. A hydroelectric microgenerator. How does the water reach the turbines? Is it a gravity feed where you simply pour it over them?
I see it now, that's cool, those projects are fun. If you already have the instructions then all you need is the right gauge of enamel wire and a little time.
I see it now, that's cool, those projects are fun. If you already have the instructions then all you need is the right gauge of enamel wire and a little time.
No, well this is how the water will reach the water wheel.
https://upload.wikimedia.org/wikipedia/commons/8/82/Archimedes_screw.JPG
The screw will be placed as high as possible above the waterwheel to get the most momentum out of it. After that the water wheel will be attached to the rotor, which will spin at the same speed, which will be placed above the stator which should generate power through the coils, but if i coil it with the speaker wire as mentioned above I need a final word to go through with it because I need to build the coils today.
https://upload.wikimedia.org/wikipedia/commons/8/82/Archimedes_screw.JPG
The screw will be placed as high as possible above the waterwheel to get the most momentum out of it. After that the water wheel will be attached to the rotor, which will spin at the same speed, which will be placed above the stator which should generate power through the coils, but if i coil it with the speaker wire as mentioned above I need a final word to go through with it because I need to build the coils today.
The design shown in the pdf will work nicely and is easy to build. But I doubt it will work with the speaker wire.
The required 200 turns per coil will be very large with the thick insulated wire, in fact they will be so large that most of the turns will be far away from the magnetic field of the stator magnets and therefore not be contributing to the power generation. Only a turn of the coil that 'sees' the magnetic field of the permanent magnets will generate voltage/power...
The required 200 turns per coil will be very large with the thick insulated wire, in fact they will be so large that most of the turns will be far away from the magnetic field of the stator magnets and therefore not be contributing to the power generation. Only a turn of the coil that 'sees' the magnetic field of the permanent magnets will generate voltage/power...
Oh, alright, and I also have copper wire, the guy at home depot said it should work for my generator but it does not look enameled, and it is quite thick, anyway I can know if it is enameled or not?
Scrape the end with a box cutter. It will shave off. Or try this:
How to Strip Magnet Wire for Soldering - YouTube
The coating is often red, sometimes orange and sometimes green.
How to Strip Magnet Wire for Soldering - YouTube
The coating is often red, sometimes orange and sometimes green.
Test for continuity with a DMM, if you touch the outer side of the wire with the probes. If you bought it at home depot, it will almost surely *not* be enameled but bare wire. In this case, it will *not* work due to shorting out of the windings against each other.
Besides, if it is quite thick, it is subject to the same limitations as the speaker wire, you will not get a reasonable number of turns close to the magnets.
Besides, if it is quite thick, it is subject to the same limitations as the speaker wire, you will not get a reasonable number of turns close to the magnets.
Alright, is there anyway I can get enameled wire fast? Anyone who sells the stuff? I have people renovating my dads office and our basement is it possible they might have some?
The fastest way to get some magnet wire is to disassemble one of the following devices:
a) an old power transformer
b) a small electric motor
c) a bicycle dynamo - this will give you complete coils, depending on the design
d) anything containing an electromagnet: A classical doorbell, a relais... ?
Andreas
EDIT: If you want to buy some, almost any electronics/parts supplier will have it. Depends on your location.
a) an old power transformer
b) a small electric motor
c) a bicycle dynamo - this will give you complete coils, depending on the design
d) anything containing an electromagnet: A classical doorbell, a relais... ?
Andreas
EDIT: If you want to buy some, almost any electronics/parts supplier will have it. Depends on your location.
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