[RE-wrenches] VFD drives

[jay]

Thanks Michael,

Thats what I wanted to confirm.  

For some reason the engineer on this project is in way over his head.

OK back to my client

jay

> On Jul 11, 2024, at 11:11 AM, Michael Morningstar via RE-wrenches <re-wrenches at lists.re-wrenches.org> wrote:
> 
> I’ve years of experience running vfds on generator power. No issues. Personally, I run numerous old cast iron woodworking machines that all have 5 and 10hp 3p motors with VFDs from a 15kw Kubota open frame generator. 15 second ramp up time. And my generator is single phase.
> 
> On Thu, Jul 11, 2024 at 10:06 AM jay via RE-wrenches <re-wrenches at lists.re-wrenches.org <mailto:re-wrenches at lists.re-wrenches.org>> wrote:
> HI All,
> 
> I’m being asked to comment about running a 10hp 3 phase well centrifugal pump off of a 30kw single phase generator with a VFD drive.
> This well pump is located in a tank for fire fighting applications, so its not down a deep well meaning almost no head pressure. And the start time can be quite slow as its not supplying a house/pressure tank.
> 
> 
> I”m not an expert on VFD drives, but I figure many of you are.
> 
> My question, based on the question from the engineer is:
> 
> 1. is there any issue with running a VFD off of a good quality 30kw brand new Kohler turbo propane generator?
> The engineer seems to think there is but he won’t say why. 
> 
> i can’t think of any reason at all?
> 
> This generator is only running this one load, the well pump.
> 
> jay
> 
> 
> 
> 
> 
> 
> 
> 
> 
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> Michael Morningstar 
> 
> Morningstar Electric Inc
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