[RE-wrenches] Power conditioner for Trace inverter
bob at midnitesolar.com
bob at midnitesolar.com
Sat Sep 9 11:41:38 PDT 2023
William, you are correct that it is a little harder on the capacitor
due to ripple current caused by
the little jumps in waveform. This is where the series inductance will
help the filtering a bit too.
The added L will add that bit of needed impedance to complete the L-C
filter.
The SW was sure a great inverter and has stood the test of time in many
applications.
I think it if had a fourth and smaller section, it could have been
perfect but I would say
it was heavy enough for even two people to lift.
BTW, Heart Akerson passed away recently.
He was a good man.
🌜boB🌛
On 9/9/2023 10:13 AM, William Miller via RE-wrenches wrote:
>
> Friends:
>
> I had an experience with a more modern inverter system creating
> harmonic distortion on the output waveform during generator run. That
> issue was documented here
> <https://millersolar.com/MillerSolar/case_studies/25_GFI%20Tripping/GFI_Tripping.html>.
> The inverter system is Outback Radian.
>
> A few weeks ago I received a call from an individual that was
> researching a similar problem. He called me to tell me he had
> resolved his harmonic distortion problem by installing a 20 microfarad
> capacitor in the circuit that was having problems.
>
> I have read here about adding a capacitor to solve distortion
> problems. The same client is still having problems running a modern
> oven. I ordered a 20 microfarad, non-polarized capacitor rated at 440
> VAC. I will let you know if this provides any resolution.
>
> William Miller
>
> Miller Solar
>
> 17395 Oak Road, Atascadero, CA 93422
>
> 805-438-5600
>
> www.millersolar.com <http://www.millersolar.com/>
>
> CA Lic. 773985
>
> *From:*RE-wrenches [mailto:re-wrenches-bounces at lists.re-wrenches.org]
> *On Behalf Of *Ray via RE-wrenches
> *Sent:* Friday, September 8, 2023 10:12 PM
> *To:* re-wrenches at lists.re-wrenches.org
> *Cc:* Ray
> *Subject:* Re: [RE-wrenches] Power conditioner for Trace inverter
>
> That's about what to expect from the Psuedo Sine Wave that the SWs put
> out. They shortened the list of problem appliances significantly
> compared to "mod sine", but its a stepped pyramid wave. Later
> inverters (Outback, Magnum) were step waves too, but just more steps,
> which translates to less trouble.
>
> Trace SW waveform
>
> I have cured the "washer not running on the SW" once, by adding a
> capacitor to the circuit. I can't recommend it 100% from a safety
> stand point, but it worked for us. Some body else chime in on the
> possible dangers? Cap blowing, fires, shorts? Definitely needs to be
> in a metal enclosure.
>
> I think its either get a different washer or get a different inverter.
> At 22+ years, its slowly reaching the time to retire those old SWs.
>
> Ray Walters
> Remote Solar
> 303 505-8760
>
> On 9/8/23 2:53 PM, Dave Angelini Offgrid Solar via RE-wrenches wrote:
>
> I would do a load test on the inverter. It may have a damaged FET
> or two. They do not last forever! Good Luck
>
>
>
> *Dave Angelini Offgrid Solar*
>
> *"we go where powerlines don't"*
>
> *<http://members.sti.net/offgridsolar/>https://offgridsolar1.com/
> <https://offgridsolar1.com/><http://members.sti.net/offgridsolar/>*
>
> *e-mail offgridsolar at sti.net*
>
> *text 209 813 0060*
>
> On 2023-09-08 12:30 pm, Darryl Thayer via RE-wrenches wrote:
>
> New washing machines are small loads 400 Watts about.
>
> On Fri, Sep 8, 2023, 2:27 PM Darryl Thayer
> <darylsolar1 at gmail.com> wrote:
>
> I once used a ferro-resonant transformer to clean up a
> sine wave. You have to know the power.
>
> On Fri, Sep 8, 2023, 1:59 PM Chris Daum via RE-wrenches
> <re-wrenches at lists.re-wrenches.org> wrote:
>
> Hi folks:
>
> I have a fellow with a Trace SW5548, purchased from us
> in 2001. It's been working great for him all this
> time, but the dilemma is he's gotten a new Hotpoint
> washing machine, and its electronics don't like the
> old inverter. Is there some sort of power conditioner
> or 'line tamer' available that will work for this
> appliance's operation? Any ideas would be greatly
> appreciated. He's rather loathe to replace his
> inverter if he doesn't need to.
>
> Best,
>
> Chris Daum
>
> Oasis Montana Inc.
>
> 406-777-4309 or 4321
>
> 406-777-4309 fax
>
> www.oasismontana.com <http://www.oasismontana.com/>
>
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