[RFI] RFI from variable speed swimming pool pumps

[James Jordan]

Yes, very much so. Only recently has the Canadian owned utility company monopoly even allowed homeowners to use solar to reduce demand on their inefficient diesel powered generating system and previously had no cogeneration buy-back program. 
I’m looking into solar as our next project down there but I’m even more concerned about the RFI potential than the pool pump. “Properly designed (RFI-wise)” is the key. 
Stay tuned!!
73,
Jim K4QPL VP5M 

Sent from my iPhone

> On Jul 2, 2018, at 9:06 PM, Jim <jimk8mr at aol.com> wrote:
> 
> At $.48/kwh does a properly designed (RFI-wise) solar system become a good economic idea?
> 
> 
> 73  -   Jim  K8MR
> 
> 
> 
>> On Jul 2, 2018, at 1:54 PM, James Jordan <k4qpl2 at gmail.com> wrote:
>> 
>> Good question. Thanks but the power situation in Turks & Caicos is very different from USA. Electricity is about $.48 PER KILOWATT HOUR! What’s yours? Pool alone presently costs almost $300/month for power. A two speed doesn’t have enough flexibility to optimize energy usage while providing adequate circulation and filtering. The new VS drives are also inherently more efficient so I’ll just have to deal with any RFI that results. Most of our renters are not hams in any event and if push comes to shove we’ll switch off or to the backup fixed speed pump during a contest etc. Hopefully line filters and ferrites will keep things manageable. 
>> 73,
>> Jim K4QPL VP5M 
>> 
>> Sent from my iPhone
>> 
>>> On Jul 2, 2018, at 12:53 PM, Jim Brown <jim at audiosystemsgroup.com> wrote:
>>> 
>>> Why use variable speed controller at all?  Most systems that use motor controllers have 2-speed controllers as "standard equipment" and offer variable speed as an upgrade.  I suggest that you try to avoid variable speed.
>>> 
>>> 73, Jim K9YC
>>> 
>>>> On 7/1/2018 11:25 AM, James Jordan wrote:
>>>> Other comments or suggestions?
>>> 
>>> 
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