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Author Topic: 800w 400 rpm 60 hz 120v permanent generator  (Read 9021 times)

Offline TommeyLReed

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800w 400 rpm 60 hz 120v permanent generator
« on: February 20, 2014, 01:18:12 AM »
This is a super low rpm with 18 fields and 18 permanent magnet rotor test run.


http://www.youtube.com/watch?v=XjM3qZViLT4

Free Energy | searching for free energy and discussing free energy


Offline Magluvin

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Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #1 on: February 20, 2014, 02:21:41 AM »
Nice gen Tommy. ;)

Good voltage for 400 rpm. And amperage to boot. ;D

Any specs on the build?

Mags

Offline e2matrix

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Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #2 on: February 20, 2014, 11:08:21 PM »
Looks like you could try looping that rectified DC output back to the drill motor battery .... although I suspect that drill motor with it's gearing is very inefficient so maybe a better low rpm dc motor running off a battery.   What kind of motor is that you modified? 

Free Energy | searching for free energy and discussing free energy

Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #2 on: February 20, 2014, 11:08:21 PM »
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Offline TommeyLReed

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Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #3 on: February 21, 2014, 01:24:46 PM »
That was a old 3/4 hp ac motor, I still have the end caps with bearing. I had another person ask me to try the same thing. 60 rpm's would need greater then 5252/400=13.13 ft lb due to mechanical losses to make 1hp(746w).  In other words if 1kw need 2 mechanical hp for gasoline engine and 1.5 for diesels. Then you could produce 1kw on a single gallon of fuel for over 8hr at idle speed of 800 rpms, and gear the engine pulley down to 400 rpm's for the generator.  I am putting a system together to get off the grid, and to tell the greedy poweer companies to take their high rates and taxes to pound sand. I will also use solar to recharge the battery pack also.



Offline MarkE

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Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #4 on: February 21, 2014, 02:58:30 PM »
I would place a good quality charge controller between the rectifier and the battery bank.  Otherwise it looks pretty robust.

Free Energy | searching for free energy and discussing free energy

Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #4 on: February 21, 2014, 02:58:30 PM »
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Offline TommeyLReed

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Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #5 on: February 21, 2014, 06:27:30 PM »
I agree Mark, but this does look like a system that could be a off the grid. I got the engine on order and also other parts.

Offline mscoffman

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Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #6 on: February 22, 2014, 12:51:45 AM »
Tommy,

One thing you are going to need is a voltmeter hooked to the microcontroller
to measure the battery voltage state of charge. This is important to know when to start
charging and when to stop charging. Also if the inverter gives up when the battery state of charge
voltage falls to it's low trip point, there may need to be a relay to cycle the inverter to reset that
condition. This is because even though the generator is running it, probably cannot support
the whole 5KW load of the inverter worst case. Those they say are the keys to long
battery life. Stop charging when the batteries are full (they go into electrolysis) Never
let the voltage fall below 80% discharged voltage point (like 10.xxVDC). Don't leave the
batteries in low state of charge for any amount of time unecessarily. Also they say that the generator should not
output more than 2X the rated voltage of the battery bank. This could be adjusted at the transformer.

It would also be nice to know how much power the inverter is using so the microcontroller could
use some heuristics to know how much energy needs to be replaced as a block.

I like the concept of using something other than voltage state of charge to know when
the batteries are full. I would feel comfortable using audio accoustics to detect the onset
of electrolysis using a stethescope input to a processor. Another might be the heating
of the hydrogen recombine catalyst area but that would depend on the AGM battery design.


:S:MarkSCoffman

Free Energy | searching for free energy and discussing free energy

Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #6 on: February 22, 2014, 12:51:45 AM »
Sponsored links:




Offline TommeyLReed

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Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #7 on: February 22, 2014, 04:51:46 AM »
I agree with just about everything you said, having built a EV in the past the batteries is best when using only 20% of stored energy. In fact I plan to use a 48v inverter system, this will draw less amps per battery. I also like to add that programing micro controllers you would need rpm readings and amps reading to control start up and load control. 

This is another test of a true sine wave on the experimental 18 pole 400 rpm generator.

http://www.youtube.com/watch?v=H8Mk3rA-2SE

Tom.

Offline MarkE

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Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #8 on: February 22, 2014, 06:55:40 PM »
Tommy,

One thing you are going to need is a voltmeter hooked to the microcontroller
to measure the battery voltage state of charge. This is important to know when to start
charging and when to stop charging. Also if the inverter gives up when the battery state of charge
voltage falls to it's low trip point, there may need to be a relay to cycle the inverter to reset that
condition. This is because even though the generator is running it, probably cannot support
the whole 5KW load of the inverter worst case. Those they say are the keys to long
battery life. Stop charging when the batteries are full (they go into electrolysis) Never
let the voltage fall below 80% discharged voltage point (like 10.xxVDC). Don't leave the
batteries in low state of charge for any amount of time unecessarily. Also they say that the generator should not
output more than 2X the rated voltage of the battery bank. This could be adjusted at the transformer.

It would also be nice to know how much power the inverter is using so the microcontroller could
use some heuristics to know how much energy needs to be replaced as a block.

I like the concept of using something other than voltage state of charge to know when
the batteries are full. I would feel comfortable using audio accoustics to detect the onset
of electrolysis using a stethescope input to a processor. Another might be the heating
of the hydrogen recombine catalyst area but that would depend on the AGM battery design.


:S:MarkSCoffman
That's the function of a charge controller.  They are widely available and relatively inexpensive.  Lead acid batteries are pretty forgiving of even crude charge controllers.

Free Energy | searching for free energy and discussing free energy

Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #8 on: February 22, 2014, 06:55:40 PM »
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Offline TinselKoala

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Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #9 on: February 22, 2014, 07:39:07 PM »
Quote
This is another test of a true sine wave on the experimental 18 pole 400 rpm generator.

So where's the "true sine wave" then?

Offline TommeyLReed

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Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #10 on: February 22, 2014, 07:56:41 PM »
I also agree, lead acid batteries are good enough and will take different charges, unlike other batteries.

The off the grid system will work now matter what, but it's not unlimited energy like our power companies.

 One thing is clear, what happens when the power goes out for days, run a Lowes or Home Depot inefficient 5kw gas sucking junk, or a system that could run days on a single gallon of fuel for a average of 1kw per hour at 12 hr per day.

I have 800 watts of solar panels that can add to the charging, and if you have wind then that would also help.

This is not magic, it's a proven fact that the Prius used this same type of system and also Trans use diesel electric due to the efficiency of 4:1 miles per ton verses trucks  MPG.

Let's not forget you can use cooking oils to run in a diesel engine, all you have to do is pre-heat and filter out the junk. 

Tom

Free Energy | searching for free energy and discussing free energy

Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #10 on: February 22, 2014, 07:56:41 PM »
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Offline Liberty

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Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #11 on: February 22, 2014, 09:09:26 PM »
I also agree, lead acid batteries are good enough and will take different charges, unlike other batteries.

The off the grid system will work now matter what, but it's not unlimited energy like our power companies.

 One thing is clear, what happens when the power goes out for days, run a Lowes or Home Depot inefficient 5kw gas sucking junk, or a system that could run days on a single gallon of fuel for a average of 1kw per hour at 12 hr per day.

I have 800 watts of solar panels that can add to the charging, and if you have wind then that would also help.

This is not magic, it's a proven fact that the Prius used this same type of system and also Trans use diesel electric due to the efficiency of 4:1 miles per ton verses trucks  MPG.

Let's not forget you can use cooking oils to run in a diesel engine, all you have to do is pre-heat and filter out the junk. 

Tom

If you use grid tie inverters, you may be able to use them with your generator output.  If you don't have a generator output for a "grid" signal, I think you can use a sine wave ups that starts on battery, then run the output of the UPS through a transformer: 120v to 240 with center tap.  You can use the output of each half of the 240v output for each grid tie inverter to simulate a grid signal of 240v with neutral (center tap).  The voltage needs to be around 120v for each grid tie, to be able to turn on both of the the grid tie inverters.  You may need an AVR (automatic voltage regulator transformer) to keep the grid tie voltage down so the UPS accept the grid tie output and will run off of the grid tie unit's power.  Your house may need AVR transformers also, to make sure the voltage during light loads, stays near 120v so as to not damage devices in the house.  Just an idea I have kicked around, that is untested. 

Liberty

Offline MarkE

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Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #12 on: February 23, 2014, 01:18:52 AM »
I also agree, lead acid batteries are good enough and will take different charges, unlike other batteries.

The off the grid system will work now matter what, but it's not unlimited energy like our power companies.

 One thing is clear, what happens when the power goes out for days, run a Lowes or Home Depot inefficient 5kw gas sucking junk, or a system that could run days on a single gallon of fuel for a average of 1kw per hour at 12 hr per day.

I have 800 watts of solar panels that can add to the charging, and if you have wind then that would also help.

This is not magic, it's a proven fact that the Prius used this same type of system and also Trans use diesel electric due to the efficiency of 4:1 miles per ton verses trucks  MPG.

Let's not forget you can use cooking oils to run in a diesel engine, all you have to do is pre-heat and filter out the junk. 

Tom
Diesel is good particularly if you insure that you run at least 25% capacity.  Otherwise be sure to change the oil frequently as it will build up acid.

Offline Magluvin

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Re: 800w 400 rpm 60 hz 120v permanent generator
« Reply #13 on: February 23, 2014, 01:40:19 AM »

 

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