Recent content by rcrracer

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    High Voltage Tape on Busbars

    https://www.amazon.com/s?k=Rubber+Splicing+Tape&i=industrial&rh=n%3A256161011&s=price-asc-rank&qid=1636553354&ref=sr_st_price-asc-rank
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    Midea Window AC and Growatt SPF 3000TL LVM-ES...A Bad Combo?

    You could have bought another high frequency inverter. One for the Midea and one for everything else.
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    Is a heat sink needed in solar evacuated tube system?

    https://www.dudadiesel.com/solar.php might know
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    Midea Window AC and Growatt SPF 3000TL LVM-ES...A Bad Combo?

    I'm the person who suggested the $15 solution. Thanks for the results posting. Too bad you can't quantify how much it improved your situation. Throw another $15 or maybe a 3 phase reactor at your problem...
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    Chest freezer to fridge conversion setpoints?

    If you set the temperatures like DThames suggested, how long are the on and off cycles? I'm am doing the same thing with a Craigslist 15 cu ft chest freezer. Inkbird temp controller. Contactor. (Don't buy a used freezer, refrigerator off Craigslist. There will be problems.)
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    Battery temperature-soil temperature

    Aug. 16th, 2021 the average day temp at the below location was 81.8F. Probably a few stations closer to your conditions, location. https://www.wunderground.com/dashboard/pws/KCADISCO40/graph/2021-08-16/2021-08-16/daily Water volume will be displaced by battery. < 15 gal. Heat will be...
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    Midea Window AC and Growatt SPF 3000TL LVM-ES...A Bad Combo?

    Maybe one of these will fix the problem. https://www.amazon.com/CW4L2-20A-S-Noise-Suppressor-Power-Filter/dp/B07FDYRQRY/ref=sr_1_4?dchild=1&keywords=powerline+filters&qid=1633689266&refinements=p_36%3A1100-%2Cp_76%3A1249137011&rnid=1249135011&rps=1&s=electronics&sr=1-4
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    Parallel 1/0 awg or 0 awg to max the amperage

    1/0 everywhere NEC requirement is 1/0 minimum can be paralleled. It doesn't matter if it is a feeder or a branch circuit, hence everywhere.
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    Midea Window AC and Growatt SPF 3000TL LVM-ES...A Bad Combo?

    If you can get a cap to PF correct at a particular range of wattage without serious repercussions, I believe I know how to PF correct over the entire range of wattage.
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    Midea Window AC and Growatt SPF 3000TL LVM-ES...A Bad Combo?

    Midea spikes time based. Every 32(?)minutes. Interesting. Midea AC taking an average of watts used over the last 30 minutes and then deciding if it needs to ramp up the compressor for a couple of minutes?
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    Midea Window AC and Growatt SPF 3000TL LVM-ES...A Bad Combo?

    https://www.energystar.gov/productfinder/product/certified-room-air-conditioners/ It's the first non inverter AC on that list. It's right after the Inverter LGs with a 'V'(variable) in the model name. The high power factor but relatively lower efficiency of that non inverter AC, seems to be...
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    Midea Window AC and Growatt SPF 3000TL LVM-ES...A Bad Combo?

    I believe the spike is caused when the AC needs to speed up in order to get enough lubricating oil to circulate after the compressor has been running at a lower speed(< 300? watts) for a while. With summer coming to an end, those spikes should become more frequent. The spikes with mine only...
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    Midea Window AC and Growatt SPF 3000TL LVM-ES...A Bad Combo?

    I wish somebody with an oscilloscope would try that capacitor idea. Doing that might cause some bad harmonics. If there aren't any problems, I have an idea that can possibly greatly improve the power factor of inverter ACs.
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    Midea Window AC and Growatt SPF 3000TL LVM-ES...A Bad Combo?

    650 watts is the highest I've seen. The lowest is around 570 watts when it isn't working very hard. Just a guess, average around 630-640 watts. I first used the LG and then the Midea to cool my 1450 sq. ft. FL house, all grid powered. ACs annual energy usage can be compared here...
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    Midea Window AC and Growatt SPF 3000TL LVM-ES...A Bad Combo?

    "I don't suppose you have PF numbers for the LG inverter window AC units?" I've got a feeling they are all about the same. I also have a LG-lw8019er window AC. It has a power factor of 0.99. Also, its compressor doesn't start until a couple of minutes after the fan motors start.
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