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Thread: Easy Star to Delta conversion
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30th Nov 2018, 11:32 PM #1Golden Member
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Easy Star to Delta conversion
This bandsaw IMG_20181125_102717.jpg is getting a VFD and it's current 1/2 hp three phase motor is being replaced with this IMG_20181130_095617-1.jpg 1hp 4 pole 3 phase star wound 415v motor from a recently acquired Waldown 3M which will get a metric motor to go with the metric only pulleys now available from Waldown.
Finding and bringing out the wires joined to form the centre of the star was relatively easy so I have posted the process so others may decide to have a go if they has a motor that looks the same.
IMG_20181130_114820-1.jpgIMG_20181130_115700-1.jpgIMG_20181130_180548-2.jpgIMG_20181130_191018-1.jpgIMG_20181130_193727-1.jpgIMG_20181130_195145-1.jpg
Regards
Eric
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1st Dec 2018, 12:14 AM #2Most Valued Member
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Hi Eric, Thanks for the pics and "How To". I think I have an easier but lazy way of doing one? Answer, send it to you, along with $100.00.
If I tried it, I'd probably electrocute myself!!!!!!!!!
KrynTo grow old is mandatory, growing up is optional.
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2nd Dec 2018, 09:06 AM #3Golden Member
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I did the same conversion to a Waldown motor a few years ago.
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2nd Dec 2018, 09:55 AM #4Golden Member
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2nd Dec 2018, 10:37 AM #5Member: Blue and white apron brigade
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Just a comment on the use of regular shrink fit and ordinary PVC insulated wiring to affect conversions. While it probably less of an issue in the case of smaller motors it's safer if higher temperature shrink fit is used, or cover regular heat shrink with fibreglass or silica sleeving. Instead of regular PVC insulated wiring I use the higher temperature rated silicone wiring found inside stoves. There are plenty of these on the sides of the road during council pickup times.
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2nd Dec 2018, 11:48 AM #6Golden Member
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BobL
Totally agree I should have included a photo of the wire I added to this motor to make it completely clear I had considered the temperature implications. Here is the silicon insulated wire I used. IMG_20181202_111221.jpg I also used a high melting point solder and heat shrink. Ideally I would like a source of fibreglass or silica sleeving too as yet I have not discovered one.
Eric
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2nd Dec 2018, 11:59 AM #7Member: Blue and white apron brigade
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I bought a 1m length from altronics a few years ago for about $5 and then Anorak Bob gave me a length and that has been enough for more than 15 motor conversions. Have also since found several old bar heaters by the side of the road and they had short lengths of the stuff inside.
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2nd Dec 2018, 12:02 PM #8Golden Member
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The SA version of Altronics is called AZtronics for some reason. Unfortunately it isn't open on weekends which is when I usually get the need. I will make a point of making sure I get some in. Is it in the Altronics catalogue? Also the fun of roadside collection is fast disappearing here with most council areas getting rid of the mass hard rubbish collection in favour of booked collection per household. It is a great pity it used to be a fantastic time for those bent on recycling.
Eric
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2nd Dec 2018, 12:29 PM #9Member: Blue and white apron brigade
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https://www.altronics.com.au/search/...as%2Bsheathing,
Jaycar also had it the last time I was there
Also the fun of roadside collection is fast disappearing here with most council areas getting rid of the mass hard rubbish collection in favour of booked collection per household. It is a great pity it used to be a fantastic time for those bent on recycling.
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2nd Dec 2018, 01:17 PM #10Golden Member
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The vidaflex fibreglass sheathing has been dicontinued at jaycar https://www.jaycar.com.au/vidaflex-f...eving/p/WS5504 and its replacement https://www.jaycar.com.au/high-tempe...utm_medium=web just frays as you cut it IMO it is almost useless. I bought some to try on this motor and resorted to the high temp heat shrink.
Eric
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2nd Dec 2018, 11:20 PM #11
Hi Guys,
I like the salvage and re-purpose of this thread !
Anything domestic that gets hot will have heat resistant cabling in it ! From coffee machines to ovens and in some cases even washing machines.Best Regards:
Baron J.
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4th Dec 2018, 10:01 PM #12Golden Member
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Yes, it is the same type of CMG motor.
CMG Motor.JPG
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4th Dec 2018, 10:33 PM #13Golden Member
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