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Phase converter 415v to 240v
- Thread starter Mattty
- Start date
racingtadpole
Well-known member
Im assuming you are in Aus because you reference a shed and 240V
You can also buy a lot of replacement single phase motors for nearly $3k too.. at an average cost of $300 for a motor you could probably replace the motors on all your machines and still have change.
You can also buy a lot of replacement single phase motors for nearly $3k too.. at an average cost of $300 for a motor you could probably replace the motors on all your machines and still have change.
$2800 sounds like a lot. I have about $300 USD into my converter. 240V 1ph to 480V 3ph.
http://www.garagejournal.com/forum/showthread.php?t=103501
http://www.garagejournal.com/forum/showthread.php?t=103501
Here in the states we have the 220/240 volt AC single phase that we use to drive a 220v three phase motor that generates the third leg. Perty simple because the single and 3 ph are near the same voltage. Do you have the same 220v 3 phase motors to generate the third leg, or does your 3 phase equipment start at 415 volt and go up from there?
I'm thinking that your 3ph starts at 415 so a bit of transformation is necessary to get from the 240 sf to 415 3ph which adds another layer of expense and difficulty.
lg
no neat sig line
I'm thinking that your 3ph starts at 415 so a bit of transformation is necessary to get from the 240 sf to 415 3ph which adds another layer of expense and difficulty.
lg
no neat sig line
rsanter
Well-known member
Can you find a VFD that has the output of 415?
If so you may find one that will take the 240 in and turn it into 415
Here there are a few VFDs that can take single phase 220/240 and make 480 3ph out of it
Bob
If so you may find one that will take the 240 in and turn it into 415
Here there are a few VFDs that can take single phase 220/240 and make 480 3ph out of it
Bob
Lippyp
Well-known member
I have the same issue here in the UK, you can find great deals on 3 phase machines, drill presses big compressors, mills, lathes etc BUT I only have 240V and the nearest three phase supply is over a mile away so to have a three phase supply connected will literally cost thousands. A friend of mine got over it by buying a used huge generator that puts out 415V three phase, its the kind of thing they use to power rock festivals etc, I think he paid less than £2.5K for it, runs it on red agricultural diesel so its cheap enough to run and its also surprisingly quiet. As it will also put out 240V its a great backup too. He bought it because even though there was a three phase supply running past the back of his barn they wanted a ridiculous amount to connect him to it. Could that be an option for you?
sberry
Banned
cost a fortune to make your own power with a diesel genset.
rsanter
Well-known member
The other way to do it ( and their are plans on the net) is to take and make a motor generator set for your use.
Get another 415 motor and a 240 motor and hook them up vie pulley or end to end.
The 240 motor will spin the 415 motor and you only need to excite the field for the 425 motor to start making electricity
Bob
Get another 415 motor and a 240 motor and hook them up vie pulley or end to end.
The 240 motor will spin the 415 motor and you only need to excite the field for the 425 motor to start making electricity
Bob
Thank you for all the good info, I should of stated that I live in NSW Australia. So if I bought a 415v lathe and changed out the motor to a 240v, do I need to change anything else on the lathe (eg switches, contacts etc) keep in mind, electrical is my weak point.
Thanks Matt
Thanks Matt
Thank you for all the good info, I should of stated that I live in NSW Australia. So if I bought a 415v lathe and changed out the motor to a 240v, do I need to change anything else on the lathe (eg switches, contacts etc) keep in mind, electrical is my weak point.
Thanks Matt
The answer is 'it depends'. If you get an older lathe with a motor and an on/off switch then it is perty simple to change the motor and make sure the switch can handle the increased current. If you get into a more modern lathe with some sophisticated controls then you have to check each component in the motor circuit to make sure that it will handle single phase loads and that it has a proper voltage coil and/or heaters.
For the most part it is doable and not to hard.
lg
no neat sig line
jabberwoki
Well-known member
I upped my voltage using a transformer from 220 to 480
Alchymist
Well-known member
I upped my voltage using a transformer from 220 to 480
If his 240V service is single phase, a transformer won't work. Or did I miss that he has 240v -3 phase?
racingtadpole
Well-known member
Thank you for all the good info, I should of stated that I live in NSW Australia. So if I bought a 415v lathe and changed out the motor to a 240v, do I need to change anything else on the lathe (eg switches, contacts etc) keep in mind, electrical is my weak point.
Thanks Matt
Depends on how big the original motor is. If you buy a lathe that has a motor that consumes more power than you can get out of a 15A circuit it becomes more problematic, but not unachievable. If you can keep it to a motor size less than 3600W its pretty straightforward. You wont find much on the second hand market here that has anything like flash electronics on it to worry about.
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Depends on how big the original motor is. If you buy a lathe that has a motor that consumes more power than you can get out of a 15A circuit it becomes more problematic, but not unachievable. If you can keep it to a motor size less than 3600W its pretty straightforward. You wont find much on the second hand market here that has anything like flash electronics on it to worry about.
Are you saying that you cannot have more than 15 amp circuits in Australia?
lg
no neat sig line
wyliesdiesels
Well-known member
Hi
Is anyone here using a "phase converter". I only have 240v power in my shed but I am finding 415v (3 phase) tools are a lot cheaper to buy. I can buy a phase converter for $2800 which converts 240v to 415v power. any thoughts
Thanks Matt
Where are u located? Is your electrical service single or 3 phase? And are the 415v tools 50hz or 60hz rated? IF 50hz, and your supply is 60hz your gonna have some issues. If the frequency of the tools and the supply match, then you could either go with a 240v rotary phase converter and a 3 phase transformer to go from 240v-415v or a VFD and a transformer, etc.
jabberwoki
Well-known member
First you make the 240 to 440 then change that to 3 phase
First you make the 240 to 440 then change that to 3 phase
Unless the X-former has taps it don't work that way, it would be 240 to 480V.
compressornew
Well-known member
I suggest you can use phase converter with guarantee period.I can search on Google these phase converter products.I hope this link is valuable or informative to you.
http://www.ebay.ca/sch/Phase-Converters-/41952/i.html
http://www.ebay.ca/sch/Phase-Converters-/41952/i.html
wyliesdiesels
Well-known member
First you make the 240 to 440 then change that to 3 phase
The OP said 415v NOT 440v!