Hi first post need help with a project
- Thread starter JonnBoy
- Start date
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I understand inverters and all but why are you connecting a weedy little motor to attempt to generate a 16 fold increase in power ?
Or are you attempting to get something for nothing ?
Or are you attempting to get something for nothing ?
flh801978":tf0jei23 said:
the motor will be run from the mains it is not going to be running all the time it will be on a timer at night plus an over ride at night when needed in the winter
during the day when it all swaps over to solar power which is working very well the motor will not be used but i will have topped up the bank at night so the charger i have for the day will not have to be on so long and eat even more AC power than the motor so it will work out cheaper
we have had it all working but used a DC motor just to see if it all worked but it just ate the second battery we had
so the simple 2 pole motor will spin at around 2900 rpm will be more than enough to run a simple car alternator i only need around 1500rpm and it will work fine it is not like a normal car alternator this one put out more regulated amps at a slower rpm
sorry Mods for going off topic on this site
just need to marry wheel to motor will get there
So just to get this straight
you are powering a ac motor from the mains/national grid? to convert good electricity into mechanical energy ( with all its attendant losses )
Then via a belt drive ( with all its attendant losses )
To drive a alternator/generator ( with huge losses )
To charge a battery?
then convert the dc from your battery back to ac 240 ( with huge losses) to run whatever you want?
this is besides the fact that you seem to think that driving a 4 hp generator with a 1/4 hp motor is going to work
Ian
you are powering a ac motor from the mains/national grid? to convert good electricity into mechanical energy ( with all its attendant losses )
Then via a belt drive ( with all its attendant losses )
To drive a alternator/generator ( with huge losses )
To charge a battery?
then convert the dc from your battery back to ac 240 ( with huge losses) to run whatever you want?
this is besides the fact that you seem to think that driving a 4 hp generator with a 1/4 hp motor is going to work
Ian
well then to drive your high load stuff washing machine using your battery bank as a floating supply/smoother
you said you were driving a 3000 w generator from a 1/4hp motor ( 3000watts is about 4 hp )
you said you were driving a 3000 w generator from a 1/4hp motor ( 3000watts is about 4 hp )
flh801978":10dctm38 said:
a power inverter not a generator i do not have a generator
looks a bit like this http://thumbs1.ebaystatic.com/d/l225/m/ ... 15LBuw.jpg
Chrispy
Established Member
Sounds like the op has invented the mythical perpetual motion here, (in two ways) going round in ever decreasing circles.
John boy whats the alternator if not a generator?
and the picture you have linked to is an alternator not an inverter in the accepted use of the word
and the picture you have linked to is an alternator not an inverter in the accepted use of the word
flh801978":1i9efpao said:
the photo is what the motor is going to spin
my battery bank is big and is more than capable to run the Power inverter
all the alternator is going to do is top up the batteries at night if i need to put them under load as it is all regulated will never need the 215amps at one time it is not a normal alternator you find theses on ice cream vans or major in car hi fi installs
bit like this but my battery bank it a lot bigger
http://www.youtube.com/watch?v=FmCHU5x-oPo this is major over kill
i only need one
this is a photo of a 3Kw built in charger http://www.amazon.co.uk/Power-Inverter- ... B009NEY6R2
it is a bit like this one i have for night time use has been working very well
i think we have are wires crossed along the way
I'm still failing to see what you are trying to do
You have a small 1/4 hp motor which will run on mains electricity ( which you are paying for)?
You will attempt to drive the alternator with this to generate electricity to run a washing machine or heavy load when theres no sunshine ?
why not use the electricity ( from the mains ) to run the load far more efficiently than going through motors and belts and converters?
If you want to get 215 amps @12v out of the alternator you need to put in ,in excess of 14.5 amps @240v to a motor to turn the alternator ( with your attendant losses )
You have a small 1/4 hp motor which will run on mains electricity ( which you are paying for)?
You will attempt to drive the alternator with this to generate electricity to run a washing machine or heavy load when theres no sunshine ?
why not use the electricity ( from the mains ) to run the load far more efficiently than going through motors and belts and converters?
If you want to get 215 amps @12v out of the alternator you need to put in ,in excess of 14.5 amps @240v to a motor to turn the alternator ( with your attendant losses )
flh801978":2vpi62f3 said:
you are still missing the point i have a large battery bank that works fine
this is just an add on
all i have stated it is a regulated 215amp alternator when it is used does not mean i will need this amount of amps maybe 50 60 or 70 + it will there when i need it so my 185w motor will be cheaper to run than the washing machine for 30mins or more
you will be glad that i will have my spacer soon with thanks to the members of this site and would like to thank the posting of the web sites have ordered other bits that could not find some collar rings
it's 19.37pm now and have only used 39p on electric for the hole day not bad all white goods have been used supplemented from my Grid inverter sun will drop out inverter just after 9pm then 9.30pm we swap to 12v sine wave inverter and it all starts again not bad for DIY self build
i did ask the Mrs how about a 12v camping kettle that did not go down to well (hammer) (hammer)
JonnBoy":rw9rysns said:
this is a basic view how the solar works during the day
http://www.sa12energyservices.co.uk/ima ... -large.jpg
this shows how my system works but i use the solar panels to run the grid inverter which runs the charger during the day
http://www.mother-earth-solar.com/image ... system.jpg
the alternator is only a top up to the battery bank hope this will help what i have done at home
met one of the forum members today thank you so much for your help
will try and get the alternator running soon
JonnBoy":nxdhzbml said:Chrispy":nxdhzbml said:
motor and extra battery bank to fit up arrives in 2 days
then join it all up and see what i get
motor her have gone for 1/3hp @250w my machined part is fitted wheel is very tight and spins very true need to get a new drive belt as the one i have was in a box and now has a slight kink in it just got one from ebay £3.49 posted
but have had it running around 3200rmp with no struggle at all even with the exciter wire connected to make the magnetic field work plenty of power to drive will find some time hope over the week end to get the motor bolted down
many thank's to the members of this site for all your help and making my part for me
i will try when all running to post a vid on youtube so you can see what i have done having the extra 2 x 125a battery's extra i have now 750amp i will increase 1000amp near winter
regards John
