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How to protect Home Automation and PC with an Uninterruptable Power Supply (UPS) (Patreon)

Published:
2023-01-21 08:12:19
Imported:
2026-06
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Content

Unstable power grids, planned shutdown of electrical power, or even blackouts: How can we prepare our homes and home automation systems against such events? Today we will cover these topics with the eyes of an engineer, and I will show how I protect our home against short and longer outages. I divided the topic into two parts: You currently watch part one. Part two will air in two weeks.

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How to protect Home Automation and PC with an Uninterruptable Power Supply (UPS)

Unstable power grids, planned shutdown of electrical power, or even blackouts: How can we prepare our homes and home automation systems against such events? Today we will cover these topics with the eyes of an engineer, and I will show how I protect our home against short and longer outages. I divided the topic into two parts: You currently watch part one. Part two will air next week. My second channel: https://www.youtube.com/HB9BLAWireless Links: DIY PV plant playlist: https://youtube.com/playlist?list=PL3XBzmAj53RmwSzQ3oOhxbZJ6INWIPdgq Transfer switch: https://s.click.aliexpress.com/e/_DmUYXFv Small Backup box (not yet tested): https://s.click.aliexpress.com/e/_DBPLn8T Eaton UPS: https://amzn.to/3vRXcuj Huawei Solar: https://solar.huawei.com/eu/Products/FusionSolarResidential Patreon supporter companies: https://passiv-energie.gmbh/ https://www.welectron.com/ https://yosmart.com/ YouTuber Patreon: https://www.youtube.com/@MakersMashup/ The links above usually are affiliate links that support the channel (no additional cost for you). Supporting Material and Blog Page: http://www.sensorsiot.org GitHub: https://www.github.com/sensorsiot My Patreon Page: https://www.patreon.com/AndreasSpiess Discord: https://discord.gg/JfgDSa8 If you want to support the channel, please use the links below to start your shopping. No additional charges for you, but I get a commission on your purchases to buy new stuff for the channel My Amazon.com shop: https://www.amazon.com/shop/andreasspiess For Banggood https://bit.ly/2jAQEf4 For AliExpress: http://bit.ly/2B0yTLL For Amazon.de: http://amzn.to/2r0ZCYI For Amazon UK: http://amzn.to/2mxBaJf For ebay.com: http://ebay.to/2DuYXBp https://www.facebook.com/profile.php?id=100013947273409 https://twitter.com/spiessa https://www.instructables.com/member/Andreas%20Spiess/ Please do not try to email me. This communication channel is reserved for my primary job As an Amazon Associate, I earn from qualifying purchases #no#midroll#ads

Comments

Ristomatti Airo

I've had an Eaton 3S (330W 550VA) running at our cottage w/o issues for over 3.5 years. I haven't measured it's consumption as it didn't seem so critical at the time. I don't have it connected via USB though as I had an "interesting" issue with doing so. I had it connected to a Raspberry Pi for quite some time but then I switched to powering the Pi via PoE. After the change, I reconnected the USB cable and instantly my PoE switch switched off and would turn on again. I didn't first understand WTF happened and the switch recovered after few minutes. I reconnected it again and zap, the same happened. I reconnected everything without power, turned everything on and again the same result. It took me quite some time debugging and while investigating I found out there was a huge voltage potential diffence between the Pi's USB port ground and the UPS's USB port ground (60V DC or so). This testing eventually fried the UPS HAT but luckily not the Pi 4 it was connected to! This is when I learned about isolated and non-isolated PoE devices. It was by reading the datasheet of the PoE chip on the cheap knockoff UPS HAT I had bought from Amazon. The datasheet mentioned it can run in both isolated and non-isolated configurations. It specifically noted that the non-isolated configuration should never be used on a devices that are operated by humans and also that the device cannot then be connected to any earth grounded device!

Anonymous

I’ve had experience with many different UPS manufacturers in the USA. My “go to” is APC. I have used 500VA through 1500VA. I bought a 1500VA Sine Wave APC for my home about a year ago because it seems as though every time we had a storm my power would go out for 5 to 10 minutes. I can tell you horror stories about other brands. Though I confess, I’m surprised to hear of your issue with Eaton. I know a lot of people lot Eaton and although it’s not my favorite, I haven’t had any issues with them.

AndreasSpiess
>>100108875

Hi Ristomatti, interesting! I also wondered if the USB connection could be part of the problem. I will include an isolated USB connector and do my tests again. Because the recent tests without USB were successful...

AndreasSpiess
>>100139593

Hi Kurt, thank you for your info. Maybe the problem is only my device. In the meantime, USB stopped working, and suddenly, it did no more switch the output on. So it will go back. I will see if they try to repair it or if I get my money back. Then, I will also have a look at APC...