View Single Post
  #26   Report Post  
Posted to rec.crafts.metalworking
Bob Engelhardt Bob Engelhardt is offline
external usenet poster
 
Posts: 2,473
Default Crazy thought -- converting 480v drives to 240v

Pete C. wrote:
Bob Engelhardt wrote:
Pete C. wrote:
... new drives up to a
couple HP are in the $200-300 range and have a warrantee it would seem
to not be worthwhile if you put some reasonable value on your time ...


The 480v drives can be *really* cheap. E.g.:
http://cgi.ebay.com/ws/eBayISAPI.dll...m=150166657114

$23 *shipped* for 3hp at 480 or 1 1/2 at 240v


I stand by my assertion. If you have a number of machines then you're
still better off with one step up transformer and running the 480V
drives at their rated 480V and strapping the motors in the machine for
480V to match the drives.


Ah, well - I was responding to your assertion that "...new drives up to
a couple HP are in the $200-300 range ...", not to the "If you have a
number of machines ...". That was why I only quoted that part of your post.

Bob