Please forgive my ignorance but in the interest of possibly saving
money, can I use the 15 HP motor I already have with my 10HP Desco
panel without too much adverse consequence? The idler is a 208V "soft
start" type. I'd be willing to do a pony motor start if that is an
issue with such a setup What consequences do you foresee in terms of
voltage/amp output and heat if any? I am trying to run a 3 HP Monarch
lathe. I may have to run my Brown and Sharp mill also although not
necessarily simultaneously. All advise and perspectives greatly
appreciated.

On Oct 31, 6:07*am, trg-s338 wrote:
Please forgive my ignorance but in the interest of possibly saving
money, can I use the 15 HP motor I already have with my 10HP Desco
panel without too much adverse consequence? *The idler is a 208V "soft
start" type. *I'd be willing to do a pony motor start if that is an
issue with such a setup *What consequences do you foresee in terms of
voltage/amp output and heat if any? *I am trying to run a 3 HP Monarch
lathe. I may have to run my Brown and Sharp mill also although not
necessarily simultaneously. *All advise and perspectives greatly
appreciated.

You could maybe start it up with primary resistors but it's really not
a good idea. Get a smaller motor on eBay, 3 - 5 HP to suit the lathe.

What is a Desco panel ? Context would seem to indicate a phase convertor of Variable Frequency
Drive.

Bob Swinney
"trg-s338" wrote in message
...
Please forgive my ignorance but in the interest of possibly saving
money, can I use the 15 HP motor I already have with my 10HP Desco
panel without too much adverse consequence? The idler is a 208V "soft
start" type. I'd be willing to do a pony motor start if that is an
issue with such a setup What consequences do you foresee in terms of
voltage/amp output and heat if any? I am trying to run a 3 HP Monarch
lathe. I may have to run my Brown and Sharp mill also although not
necessarily simultaneously. All advise and perspectives greatly
appreciated.

On Nov 1, 9:31*am, "Robert Swinney" wrote:
What is a Desco panel ? *Context would seem to indicate a phase convertor of Variable Frequency
Drive.

Bob Swinney"trg-s338" wrote in message

...
Please forgive my ignorance but in the interest of possibly saving
money, can I use the 15 HP motor I already have with my 10HP Desco
panel without too much adverse consequence? *The idler is a 208V "soft
start" type. *I'd be willing to do a pony motor start if that is an
issue with such a setup *What consequences do you foresee in terms of
voltage/amp output and heat if any? *I am trying to run a 3 HP Monarch
lathe. I may have to run my Brown and Sharp mill also although not
necessarily simultaneously. *All advise and perspectives greatly
appreciated.

The Desco panel is just one of the generic "build your own RPC"
converter kits seen on eBay.

Assuming the RPC uses a 3-Phase motor of 10 HP and other kit components are judicioulsy chosen, it
may start and run a 15 HP motor. Don't expect the same snappy start you get with motors of 10 HP or
less though. Sluggish starting might be corrected with additional electrolytic start capacitors
wired in parallel with existings ones. Generally speaking, long starting intervals of over 1 second
indicate insufficient start capacitance. The same long start can possibly draw enough current to
trip cercuit breakers,

If the Desco panel is merely a static phase convertor it may not start a 15 HP load.

See some RPC articles in Metal Web News for more information.

Bob Swinney
"trg-s338" wrote in message
...
On Nov 1, 9:31 am, "Robert Swinney" wrote:
What is a Desco panel ? Context would seem to indicate a phase convertor of Variable Frequency
Drive.

Bob Swinney"trg-s338" wrote in message

...
Please forgive my ignorance but in the interest of possibly saving
money, can I use the 15 HP motor I already have with my 10HP Desco
panel without too much adverse consequence? The idler is a 208V "soft
start" type. I'd be willing to do a pony motor start if that is an
issue with such a setup What consequences do you foresee in terms of
voltage/amp output and heat if any? I am trying to run a 3 HP Monarch
lathe. I may have to run my Brown and Sharp mill also although not
necessarily simultaneously. All advise and perspectives greatly
appreciated.

The Desco panel is just one of the generic "build your own RPC"
converter kits seen on eBay.