John Rodgers on tue 31 jul 07
Phase converters do work. Long term though, I would change out the motor
John Rodgers
Chelsea, AL
C. A. Sanger wrote:
> I bought an old Shimpo deairing pugmill that
> was used and well maintained by a school
> district, and has been in storage several
> years. It is designed to run on three phase
> power, which I have been told is expensive to
> have put in, especially for only one machine.
> A friend rigged up a phase convertor to plug
> into it, and then into a wall 220 outlet.
> Another potter friend who has such skills
> offered to replace the motor with one that
> would run on ordinary household current.
> Numerous calls to the manufacturer got me no
> help at all. I want to use the thing, but am
> conflicted about the best route to go, and
> don't want to damage a perfectly good machine.
> Anyone know if a phase converter will even work
> for such a use? Or should I give in and change
> out the motor? Thanks! C. A. Sanger Sparfish
> Studio
>
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C. A. Sanger on tue 31 jul 07
I bought an old Shimpo deairing pugmill that
was used and well maintained by a school
district, and has been in storage several
years. It is designed to run on three phase
power, which I have been told is expensive to
have put in, especially for only one machine.
A friend rigged up a phase convertor to plug
into it, and then into a wall 220 outlet.
Another potter friend who has such skills
offered to replace the motor with one that
would run on ordinary household current.
Numerous calls to the manufacturer got me no
help at all. I want to use the thing, but am
conflicted about the best route to go, and
don't want to damage a perfectly good machine.
Anyone know if a phase converter will even work
for such a use? Or should I give in and change
out the motor? Thanks! C. A. Sanger Sparfish
Studio
Michael Wendt on tue 31 jul 07
C.A.
Phase converters work fine. They are especially
nice in this application since all you do is wire the
converter into the appropriate size circuit and
then hook it to your machine.
Be aware, there are some efficiency losses and
the single phase circuit must handle nearly 4
times the current of the motor rating.
So, if the motor is 1 hp 3 phase it may draw
3 amps per leg but requires about 12 amps
of capacity in single phase so check these
carefully.
Regards,
Michael Wendt
Wendt Pottery
2729 Clearwater Ave
Lewiston, ID 83501
USA
208-746-3724
http://www.wendtpottery.com
wendtpot@lewiston.com
WJ Seidl on wed 1 aug 07
A phase converter will work, but you must de-rate the motor by (I
believe) 1/3 to 1/2.
You can get that information online. This might make the motor struggle to
accomplish what it normally could do easily. If you can reasonably
replace the motor with one
wired for the correct voltage/phase: in your case 220v single phase, I
would think you would be better off.
JMO, of course.
Best,
Wayne Seidl
C. A. Sanger wrote:
> I bought an old Shimpo deairing pugmill that
> was used and well maintained by a school
> district, and has been in storage several
> years. It is designed to run on three phase
> power, which I have been told is expensive to
> have put in, especially for only one machine.
> A friend rigged up a phase convertor to plug
> into it, and then into a wall 220 outlet.
> Another potter friend who has such skills
> offered to replace the motor with one that
> would run on ordinary household current.
> Numerous calls to the manufacturer got me no
> help at all. I want to use the thing, but am
> conflicted about the best route to go, and
> don't want to damage a perfectly good machine.
> Anyone know if a phase converter will even work
> for such a use? Or should I give in and change
> out the motor? Thanks! C. A. Sanger Sparfish
> Studio
>
> ______________________________________________________________________________
> Send postings to clayart@lsv.ceramics.org
>
> You may look at the archives for the list or change your subscription
> settings from http://www.ceramics.org/clayart/
>
> Moderator of the list is Mel Jacobson who may be reached at melpots@pclink.com.
>
>
Clayart SCtag on wed 1 aug 07
In a message dated 8/1/2007 9:18:20 A.M. Eastern Daylight Time,
wjsvt@SOVER.NET writes:
A phase converter will work, but you must de-rate the motor by (I
believe) 1/3 to 1/2.
You can get that information online. This might make the motor struggle to
accomplish what it normally could do easily. If you can reasonably
replace the motor with one
wired for the correct voltage/phase: in your case 220v single phase, I
would think you would be better off.
JMO, of course.
Best,
Wayne Seidl
I agree,Wayne, as when I had a 3 phase heat/airconditioner that came with a
building I bought and moved.All the master electricians I consulted , and
the power company, didn't advise I use a converter to bring it to function
on my available single phase service.
Meg
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