This 3 phase- single phase conversion issue

[9fingers]

This subject keeps coming up in various guises and one or two classic misconceptions abound.

Would there be some benefit if I had a go at writing some sort of tutorial on the subject and post it here as a sticky?

Obviously, I'd want the moderators blessing as well as a couple of volunteers to proof read my ramblings for accuracy and balance.

My background is as an electronic engineer for 35 years and I've been dabbling with motors, inverters and converters for years

Bob

 

[BigShot]

It's something I've wondered about and I don't think there can be too many overviews tutorials and the likes.

I'll vote Yes, though if the powers that be don't want it as a sticky (I don't really see why they wouldn't) maybe some other place would be good. is there a dedicated tutorials/articles section?

 

[xy mosian]

I have not needed to work with three phase personally, but I will vote YES for a sticky guide.

It would do this forum no harm to become known as a source of good quality information which is easily accessible. It already is of course but three to single phase conversions may well be of interest to people other than woodworkers.

xy

 

[Nev Hallam]

good idea

 

[Doug B]

From the looks so far Bob it seems to be a resounding yes.

I could deffinitly do with so more info, as my electrician friend has retired to the seaside, just as i need him. dammed inconsiderate of him :lol: :lol: :lol: :lol: :lol:

 

[markymark12]

Another yes from me

Although it comes a little late for me in some respects i recently managed to fry some motor windings on a ebay purchase due to starting issues, although i had a rotary convertor to run the item and it was well within its loading capacity. The draw on start up caused the windings to overheat.

Transwave tell me it is down to the direct online starter and that more capacitors are needed if i wish to stick with the current convertor. Funny thing is when i purchase the convertor the information was that the star delta starters on the other machines may give a issue as the convertor acts to surpress the initial surge. I have never had any problems with any fitted with the star delta starters only the direct online type. I have considered replacing the starter but then again it could be a better option to sell the convertor and replace.

I have toyed with the new line of digital convertors due to the number of 3 phase machines i have. Are they reliable? i ask as they are familiar new to the uk so wondered if you had any experience.

 

[John. B]

I voted yes to this,
however if it could be posted in the 'How to' heading. which does serve as a form of tutorial section. it would be more useful IMO. 8)

John. B

 

[JonnyD]

Good idea Bob. I have 3 phase in my workshop but a few years ago I nearly moved to a workshop with no 3 phase power. I researched the options for a while and found it to be quite confusing so a tutorial would be a good addition to the forum.

I used to have my workshop behind a motor rewinders and I know them well and could get them to have a look over it if you want.

Jon

 

[Paul Chapman]

Excellent idea.

Cheers :wink:

Paul

 

[9fingers]

OK The idea seems to have got a positive response from the membership so far.
It would be good to hear from some mods or even Charley.

If there are any problems I can always host it myself and just leave a link to it here.

I've got a bit of a manic week next week so might not get much time. I'm finding retirement quite busy :lol: :lol:
I'm trying to teach myself a new (to me) computer language, C and getting to grips with a PIC micro controller, Management wants some raised beds in the garden and a counter-balance for the compost lids etc etc.

Once I get some time I can start roughing out something and getting some diagrams defined.

Thanks for your support guys!

Bob

 

[Oldman]

Using C to control a PIC to raise beds and adjust compost lids, that I have to see :wink:

 

[9fingers]

Using C to control a PIC to raise beds and adjust compost lids, that I have to see :wink:

It is what happens when an active mind is suddenly relieved of the pressures of work! The only source of stress left is getting my ex-employer to start paying my pension!


Bob

 

[DavidE]

Hi Bob,

It sounds like a useful resource for the forum - if you'd like it proof reading please give me a shout. I have an industrial electrical/instrumentation background so have played with lots of stuff bar convertors!

Cheers
David

PS Which compiler for the PICs are you playing with?