#powerdistribution — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #powerdistribution, aggregated by home.social.
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Weird. #Supermicro has (had?) two different power distribution backplanes (for redundant hot-swap power supplies) for their SC825 series of 2U rackmount server cases: PDB-PT825-8820 and PDB-PT825-8824. The only difference appears to be that the -8824 has longer leads. The -8820's shorter cables won't reach the 12V CPU-power sockets on most mainboards, so I'm not sure how they could be used, and the -8824 seems to be discontinued. My -8824 broke and the replacement I received is a -8820. I have a spare for now, but would like to have one in stock, too.
#powerdistribution #powersupply #homeserver #selfhosting -
Why do PLC panels suffer from random resets, unstable inputs, or communication drops?
In many cases, the issue is not the PLC logic — it is the 24V DC power architecture.We’ve published a practical technical article covering sizing, protection, DC distribution, and reliability best practices for industrial control panels.
Read now:
https://zurl.co/5lDNw#PLC #ControlPanelDesign #IndustrialAutomation #ElectricalControls #PowerDistribution #Smidnya
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Working on panels, machines, or electrical distribution systems?
Our new Smidnya Help Centre article covers MCB, MCCB, RCCB/ELCB, RCBO, fuses, contactors, and overload relays in one practical guide.Read now:
https://zurl.co/EeRDP#Smidnya #Smidmart #ElectricalControls #PowerDistribution #IndustrialAutomation #ElectricalSafety
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Power failures cause 54% of data center outages. So how do AWS, Google, Microsoft, and xAI actually design their power systems?
AWS: rack-level UPS, 35% less loss
Google: 100M Li-ion cells, 1.09 PUE
xAI Colossus: 2 GW -- 40% of Memphis gridFull technical deep dive:
https://resistancezero.com/article-13.html#DataCenter #PowerDistribution #AI #CriticalInfrastructure #Engineering
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Power failures cause 54% of data center outages. So how do AWS, Google, Microsoft, and xAI actually design their power systems?
AWS: rack-level UPS, 35% less loss
Google: 100M Li-ion cells, 1.09 PUE
xAI Colossus: 2 GW -- 40% of Memphis gridFull technical deep dive:
https://resistancezero.com/article-13.html#DataCenter #PowerDistribution #AI #CriticalInfrastructure #Engineering
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Making Electricity at the South Pole - In case you’ve ever wondered how the South Pole research stations are powered, the... - https://hackaday.com/2023/08/24/making-electricity-at-the-south-pole/ #powerdistribution #harshclimate #engineering #antarctica #southpole #science #mcmurdo
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@trainman
This is the most incorrect thing I've read all year. NC is made up. -
Repairing Underground Power Cables - When we were kids, overhead power cables were a constant fixture in the neighborho... - https://hackaday.com/2021/10/05/repairing-underground-power-cables/ #scattergoodolympic #powerdistribution #undergroundcable #repairhacks
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An article about an idea: to use waste heat from tunnels lined with power distribution cables under London to heat houses.