Electical help RE: creating three phase

[pyrocam]

Ok so My washing machine broke, control board is fried. I am rebuilding it.

Gentlemen, we can rebuild It. We have the technology. We have the capability to build the world's first pimped out washing machine. Our washing machine will be that washing machine . Better than it was before. Better, stronger, faster.
(more info on that will be here)

But I've come across the problem of creating a three phase source to drive the agitator. I've had a read of this honking great big article here to get a basic understanding but I'm finding myself a bit lacking as I dont understand it completely.

3 wires go into the coil array which I figure would look something like this: Over simplified and crappy:

(Red = a coil)

now from what I gather. input 1, 2 and 3 need to be at 120 degree diference to each other at all times


50Hz to -50hz top and bottom of graph, each color is a input (or phase?)


Ok, so firstly, can someone confirm my theories there.
and secondly, I would have assumed that even with 'three phase' there would beed to be a ground or somewhere for the power to leave the coil array
thirdly, how to a build a 3 phase converter for cheap. I'm a real no.#8 wire geek so I can make pretty much anything.

Thanks in advance

[WINJA]

run a lead to the neighbours on each side of you, cause of load sharing you should have a phase each , or buy a single to 3 phase inverter

[erik]

what do you want 3-phase for? why not just use single phase, like the original motor would have been?
We did some stuff on 3-phase stuff etc in my mechanical engineering course, it was confusing. maybe one of the electrical engineers will tell you something useful.

[WINJA]

what do you want 3-phase for? why not just use single phase, like the original motor would have been?
we did some stuff on 3-phase stuff etc in my mechanical engineering course, it was confusing. maybe one of the electrical engineers will tell you something useful.

most of it is not confusing , some of the american stuff is to complecated for no reason , i just spent 5 years doing mechanicals in aucks , chillers with a 1.2 megawatt cooling capacity each , some 3 phase compressors with an fla of 350 amps etc etc , lots of fun when your used to it

[Pixie]

Why don't you just fix the original driver board?

PS I've been in electronics for 29 years, which is why I don't buy shit like Fischer & Paykel hi tech housewares.
It's a friggen washing machine, it doesn't need electronics and a stepping motor drive.
I have an AEG, it's got a single phase induction motor, direct drive by belt,a mechanical timer and no gearbox and it will still be going when all the F'n'Pee stuff is rooted

[pyrocam]

Why don't you just fix the original driver board?

PS I've been in electronics for 29 years, which is why I don't buy shit like Fischer & Paykel hi tech housewares.
It's a friggen washing machine, it doesn't need electronics and a stepping motor drive.
I have an AEG, it's got a single phase induction motor, direct drive by belt,a mechanical timer and no gearbox and it will still be going when all the F'n'Pee stuff is rooted

It was the fuses that blew up not the caps. from what I read its ussuall because of an incorrect return voltage of one of the pumps. Also, in my experience If I just replaced the fuses they would just blow again.

I cant beleive what my flatmate did behind my back though. he just soldered over the two fuses (IE: lets just stick a nail in my fuse box) and said it was fixed. :slap:



it looks a lot worse than this, that shadowy area at the top isnt shadow its burnt board

[WINJA]

why don't you just fix the original driver board?

ps i've been in electronics for 29 years, which is why i don't buy shit like fischer & paykel hi tech housewares.
it's a friggen washing machine, it doesn't need electronics and a stepping motor drive.
i have an aeg, it's got a single phase induction motor, direct drive by belt,a mechanical timer and no gearbox and it will still be going when all the f'n'pee stuff is rooted

aint that the truth , people are making things to complex for no reason

[Ixion]

Too right. Like, uh, oh , say 4 cylinder motorcycle engines. With all them overhead cams. And all those valves for each cylinder. And 6 speed gearboxes.
GSXR750: 4 pistons. 16 valves. 16 valve springs. 16 sets of seals . 16 sets of retainers. 2 camshafts. chain. 2 sprockets. Innumerable seals, nuts bolts etc.
GT750. 3 pistons. Done.

[WINJA]

too right. like, uh, oh , say 4 cylinder motorcycle engines. with all them overhead cams. and all those valves for each cylinder. and 6 speed gearboxes.
gsxr750: 4 pistons. 16 valves. 16 valve springs. 16 sets of seals . 16 sets of retainers. 2 camshafts. chain. 2 sprockets. innumerable seals, nuts bolts etc.
gt750. 3 pistons. done.

apart from hondas bikes get better every year, washing machines just wash clothes , do you think the get clothes cleaner than they did 10 or 20 years ago ? no. as for bikes most sports bikes are based on kawaskis 80s technology , ram air (high preasure source)and twinspar frame /1000rx , water cooled twincam ,4 cyl ,16 valve, 6 speed / gpz900

[Indiana_Jones]

Gentlemen, we can rebuild It. We have the technology, but I don't want to spend alot of money.....

-Indy

[Ixion]

apart from hondas bikes get better every year, washing machines just wash clothes , do you think the get clothes cleaner than they did 10 or 20 years ago ? no. as for bikes most sports bikes are based on kawaskis 80s technology , ram air and twinspar frame /100rx high preasure intake , water cooled twincam ,4 cyl ,16 valve, 6 speed / gpz900

Ah, water cooling. That's *another* unnecessary. REAL bikes have fins. And I bet that I could still do Auck->Wgtn-Auck non stop (except for petrol) as quick on a Velo 500 as you could on a GXSR1000 (or, I could if I still had the body I had 35 years ago )

[WINJA]

ah, water cooling. that's *another* unnecessary. real bikes have fins. and i bet that i could still do auck->wgtn-auck non stop (except for petrol) as quick on a velo 500 as you could on a gxsr1000 (or, i could if i still had the body i had 35 years ago )

your a fool then , on my regular trips away i would sit on about 250kmh some places , i go quite fast round corners and i overtake lines of 20 or more cars in one go , whatever the velo 500 is i bet it wont keep up , btw the gixxer gets good mileage from gas

[cowpoos]

apart from hondas bikes get better every year, washing machines just wash clothes , do you think the get clothes cleaner than they did 10 or 20 years ago ? no. as for bikes most sports bikes are based on kawaskis 80s technology , ram air and twinspar frame /100rx high preasure intake , water cooled twincam ,4 cyl ,16 valve, 6 speed / gpz900

yep...and so many people diss kawasaki??? they really do make a good bike...
they just don't do refined very well...but if refined is what you want...theres honda...and suzuki is always a good compramise

[froggyfrenchman]

Too right. Like, uh, oh , say 4 cylinder motorcycle engines. With all them overhead cams. And all those valves for each cylinder. And 6 speed gearboxes.
GSXR750: 4 pistons. 16 valves. 16 valve springs. 16 sets of seals . 16 sets of retainers. 2 camshafts. chain. 2 sprockets. Innumerable seals, nuts bolts etc.
GT750. 3 pistons. Done.

Amen.


Now pyro... three phase washing machine? you dropped yourself on the head lately? pt

[Dafe]

Are you sure you need to generate three phase? What makes you think this?

Standard household appliances are all single phase.

Have a look here... http://home.howstuffworks.com/washer.htm