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Author Topic: Can I harvest energy from overhead wires?  (Read 19799 times)

Offline syhprum

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Re: Can I harvest energy from overhead wires?
« Reply #25 on: 04/03/2013 16:31:27 »
I have written this many times but I do not know if has been appreciated if you use a bridge rectifier with a grounded source you get half the input AC superimposed on both the positive and negative terminals unless you are going to feed a chopper and then isolate it with a transformer this renders it pretty useless where as if you use a voltage doubler circuit you can use the DC output directly with a grounded load. 
 

Offline Banjo27

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Re: Can I harvest energy from overhead wires?
« Reply #26 on: 26/10/2016 19:57:04 »
Is there any progress on this ??
I have a transmission line tower on my land and would love to power things using the EMF
Spend enough time under them and touching another person you will make a spark , my vehicle has a faint vibration to it when touching the body from the outside when I'm near the lines aswell
 

Offline syhprum

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Re: Can I harvest energy from overhead wires?
« Reply #27 on: 26/10/2016 22:40:26 »
An antenna strung along below a high voltage power line will harvest a small amount of energy but because the low frequency the source impedance will be very high and the amount of energy that can be harvested (stolen?) is very low.
You could feed the antenna into the junction of a pair of high voltage rated diodes with a capacitor between the two ends and one end grounded and it would gradually charge up but I repeat the voltage would be high and the source impedance very high not a very useful source of power!   
 

Offline alancalverd

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Re: Can I harvest energy from overhead wires?
« Reply #28 on: 26/10/2016 23:25:39 »
"Stolen" is indeed the correct word. Whilst you might get away with the occasional demonstration of fluorescent tubes and the like, if you harvest more than a few watts on a regular basis and somebody grasses on you, you will be liable for "Theft of Electricity" - the fine might be nominal if the quantity was small but you will end up with a criminal record that can do disproportionate damage to your career.
 

Offline Dezeinstein

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Re: Harvesting power
« Reply #29 on: 24/11/2016 12:57:32 »
I think you guys are going about this all wrong. The energy isn't in an inductor, so why would an inductor induce this? the field is in the incorrect direction, so to get anything out, you may only have to use capacitive plates and an avramenko plug across the plates to output some energy. The smaller the diodes, the better your safety factor. This way if the voltage is too high , the diodes will explode. try this, put a copper plate on the top, glass in the middle and aluminum plate on the bottom. use the don smith experiment but in reverse. Take the plates, cut a hole at 2" in the middle of the plates and your dielectric (which could be mica, glass, or any high enough energy dielectric to start. If you use a staticly charged plastic plate, be very careful, the output will attract the ions of the line and may belt you!..

I think if you add an iron rod through the holes and make a non conductive holder that will have a hole in it so the rod could stand in it, then the non conductive holder could be pushed into the ground, this would work. place a thick paper wrapping around the bottom of the rod and wind a coil of about 200 turns under the plate. The plate will need to be grounded on the bottom plate, and the top not connected.

The rod's coil will need to be grounded on one end and the other conductor will be connected to an analog voltmeter between the top coil connection and the grounded one. If this gives nothing, connect the top plate to the meter and the unconnectded coil winding.

If this doesn't work, you'll probably never get the field propagation correct. The capacitive plate and coil will need to be built to resonate at 60 hz to transfer energy from the power lines to the plate and coil. You also have no reference to ground from a delta overhead system, this means if there's only 3 phases and no neutral line, the energy across from phases to ground will not be existent and the energy will not be able to be induced.

When you run a line straight like this, you need a component to be energized at the end of it, like a choke or a very high voltage, very small capacitance cap. you would need an avramenko plug on both sides, one side would need to be grounded and a coil in series with the lower transmission line you build. Then the avramenko plug may release energy. If you connect one side to ground, the inductor or choke of a fairly high resistance will need to be wired in series between ground and the rest of the line, then an avramenko plug mounted to the other side, or, the line could be connected to a capacitive plate at the end of the rod used for the choke to collect the transmitted energy with the plates connected at a 90 degree angle to the choke or resonant inductor's core. Holes should be drilled through these plates and the capacitve nature of the plates should be calculated to ensure it will resonate at 60hz, otherwise you will NOT have a loose inductive coupling.

The plate could be used to draw dc energy from it, then transferred to ac with a battery and an inverter, so this may be a  wise try.

What I was saying before about the delta lines means that the delta system has no neutral and no ground. The energy returns on opposing phases because the coils of the generating equipment are tied together and placement of the coils are placed 120 degrees apart, hence 3 120 degree difference in phases. If the system is stepped up to 69kV, 115kV, 138kV, or 345kV, you should be able to see if there is a 4th line. The 4th line may indicate a grounded line (which is a static line), or, if you live in southern states or different countries, these may be grounded neutrals, or the lines could even be dc transmission lines which you could capacitively collect energy from, but I will warn everybody, be careful. The dc lines could strike and kill you. remember Tesla's statement about the blue streak of death!

Anyway, I have created two images, one I believe may collect small amounts of energy from both wye and delta transmission lines. remember, these are not designed to steal piower, they are for educational purposes only. I am not suggesting anybody go on the federally owned transmission line's right of way. It's a major charge and they would lock you up for sure. If you have land abutting the transmission lines, you may be able to collect something, but it shouldn't be anything that adds load to their lines if done capacitively, as well, the energy may if youre lucky light a few leds. If you make this to couple with the lines, you may be in for a big surprise, it may easily kill you and I am not suggesting anybody try this, not even from 200 feet away,. which is very possible. If tesla could run a car by driving within 1/4 mile of the transmissiobn lines, then we could somehow harvest the energy using a method similar to this!

GOOD LUCK AND PLEASE REMAIN SAFE USING ALL PROTECTIVE SAFETY EQUIPMENT. HIGH VOLTAGES CAN KILL WITH EVEN 1/2 AMP OF CURRENT, IN FACT, AT THIS LEVEL IT COULD BLOW OFF LIMBS ARE COMPLETELY BURN EVERYTHING OFF OF YOUR BODY. FLESH CAN INSTANTLY BURST INTO FLAMES, AND THERE WOULD BE NO WAY ANYBODY COULD SAVE YOU IF THE POTENTIAL IS TOO HIGH.

iF ANYBODY TRIES THIS, I SUGGEST YOU PUT THE DEVICE TOGETHER AND CONNECT A METER TO IT, THEN FROM A VERY LONG DISTANCE, BE SURE YOU CARRY IT WITH RUBBER GLOVES, WALKING TOWARDS THE LINES, WATCHING THE METER WHICH WILL MEASURE VOLTAGE ACROSS THE PLATES, AND ANOTHER METER ACROSS THE COIL FOR ADDITIONAL SAFETY.

PLEASE BE CAREFUL. SEE IMAGES BELOW.

Dezeinstein




http://www.thenakedscientists.com/forum/index.php?topic=27039.msg286115#msg286115

« Last Edit: 24/11/2016 14:15:03 by Dezeinstein »
 

Offline syhprum

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Re: Can I harvest energy from overhead wires?
« Reply #30 on: 30/11/2016 09:43:12 »
You are not going to get anywhere with small structures , low frequency's require large structures look at the antennas at droitwich or those used by the military to communicate with their submerged submarines.   
 

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Re: Can I harvest energy from overhead wires?
« Reply #30 on: 30/11/2016 09:43:12 »

 

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