please... and id love to see the harmonics too! thanks, todd On Tuesday, April 16, 2013 5:19pm, "Chris Mason" <cometenergysyst...@gmail.com> said:
If it is useful to you, I can grab a waveform from my scope connected to my outback and post it. On Tue, Apr 16, 2013 at 3:27 PM, All Solar <[mailto:allso...@scswifi.net] allso...@scswifi.net> wrote: coffee machine is a Miele CVA 4066. Sent from Jeremy's IPhone. Sorry for typos and shorthand! On Apr 16, 2013, at 12:46 PM, boB <[mailto:b...@midnitesolar.com] b...@midnitesolar.com> wrote: > > I believe these problems are mainly due to the high frequency switching > content of the typical sinewave inverter > these days. > > I (and other manufacturers I'm sure) would be very interested to know which > appliances are susceptible to > this noise so that we can try to reduce these incompatibilities. I'm > sure we can't take care of 100% of > the incompatibilities but we can try to get closer. > > For instance, what kind of coffee maker was that, Jeremy ? > > boB > > > > On 4/16/2013 11:36 AM, Bruce Erickson wrote: >> I'm having a similar issue with a GRID-TIE inverter just now. SMA 5000US >> which, when it wakes up every morning, removes the date and time from the >> programming in the customers' Monitor brand kerosene heater. They have to >> re-enter it daily, which is annoying enough, but when they go out of town, >> they have to leave the inverter off to avoid coming home to a cold house. >> >> So far SMA has had us move the breaker as far as possible from the heater >> breaker, to no avail. They had no other suggestions. I used a Panamax >> plug-in power conditioner with 50 dB of EMI filtering on the heater outlet, >> which has reduced the frequency of the problem to once a day, when it wakes >> up, from a few times a day. Trying a different heater is out of the >> question due to cost, so I'm stumped as how to avoid an unhappy customer, >> unless the answer is experimenting with more robust power conditioners. >> >> Bruce Erickson >> Mendocino Solar Service >> PO Box 1252 >> Mendocino, CA 95460 >> [tel:707-937-1701] 707-937-1701 >> [tel:707-937-1741] 707-937-1741 fax >> [mailto:br...@mendocinosolar.com] br...@mendocinosolar.com >> >> >> >> >> On Apr 16, 2013, at 11:12 AM, Dave Palumbo wrote: >> >>> Jeremy, >>> >>> << What to look for? >> >>> >>> Unfortunately, probably a different coffee maker. >>> I've gone through this with several different appliances over the years on >>> sine wave inverter output. Washing machines, refrigerators, dishwashers it >>> could be anything with electronics. Specific manufacturers typically cannot >>> be avoided in order to solve this issue. Year to year manufacturers may >>> change the design of their appliances, so blanket statements on what works >>> and what doesn't are unreliable. All appliances (excepting a few) are >>> designed to operate on utility power, not inverter power. Inverter power >>> (excepting Exeltech and possibly others) typically has more distortion than >>> utility power. Some appliances cannot tolerate the simulated inverter sine >>> wave power. I always council my inverter customers that I cannot guarantee >>> that all appliances with work flawlessly and that some may not work at all. >>> I advise off-grid clients to buy appliances where there is a liberal return >>> policy. >>> >>> David Palumbo >>> Independent Power LLC >>> 462 Solar Way Drive >>> Hyde Park, VT 05655 >>> [http://www.independentpowerllc.com] www.independentpowerllc.com >>> Vermont Solar Partner >>> 25 Years Experience, [tel:%28802%29%20888-7194] (802) 888-7194 >>> >>> >>> >>> >>> -----Original Message----- >>> From: [mailto:re-wrenches-boun...@lists.re-wrenches.org] >>> re-wrenches-boun...@lists.re-wrenches.org >>> [mailto:[mailto:re-wrenches-boun...@lists.re-wrenches.org] >>> re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of All Solar >>> Sent: Tuesday, April 16, 2013 12:47 PM >>> To: [mailto:re-wrenches@lists.re-wrenches.org] >>> re-wrenches@lists.re-wrenches.org >>> Subject: [RE-wrenches] Outback wave form >>> >>> Have a client with a new coffee maker that will not run from their new dual >>> outback setup. Has anyone heard of this lately. We have had no problems >>> with >>> appliances and sine wave inverters. What to look for? > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: [mailto:RE-wrenches@lists.re-wrenches.org] > RE-wrenches@lists.re-wrenches.org > > Change email address & settings: > [http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org] > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > [http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org] > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > [http://www.re-wrenches.org/etiquette.htm] www.re-wrenches.org/etiquette.htm > > Check out participant bios: > [http://www.members.re-wrenches.org] www.members.re-wrenches.org > > _______________________________________________ List sponsored by Home Power magazine List Address: [mailto:RE-wrenches@lists.re-wrenches.org] RE-wrenches@lists.re-wrenches.org Change email address & settings: [http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org] http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: [http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org] http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: [http://www.re-wrenches.org/etiquette.htm] www.re-wrenches.org/etiquette.htm Check out participant bios: [http://www.members.re-wrenches.org] www.members.re-wrenches.org -- Chris Mason President, Comet Systems Ltd [http://www.cometenergysystems.com] www.cometenergysystems.com Cell: 264.235.5670 Skype: netconcepts Sent from Finest Planet WebMail.
_______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Change email address & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
