Evening walk near the neighboring town. I'm learning to play with the camera. #twilight #night #townscape #powertransmission

I've found very little comparison of 6 phase power vs. HVDC but plenty of HVDC articles

https://www.ti.com/lit/ta/ssztad2/ssztad2.pdf?ts=1751197815780

Thyristors! Of course!

#PowerTransmission #PowerLines #Electricity #AmateurRadio #Hamradio

Colored Balls on High-Voltage Cables Ensure Aviation Safety

You've probably seen them before - those bright orange or red spheres attached to high-voltage power lines. They're not just for show. These markers, known as

Blaze Trends

Somebody with decent chops has produced some excellent digests of events leading to similar, on Wikipedia. ( went down this rabbit hole quite recently)

#GridCollapse
#PowerTransmission
#ElectricalGrid

https://arstechnica.com/tech-policy/2025/04/massive-power-outage-in-spain-portugal-leaves-millions-in-dark/

Massive power outage in Spain, Portugal leaves millions in dark

Cause likely not malicious; Red Electrica blames outage on “grid oscillation.”…

Ars Technica

Understanding the Role and Importance of Industrial Gearboxes

Industrial gearboxes are mechanical components used in commercial and industrial machinery to transmit torque and rotate shafts at different speeds or in a different direction. They contain gears that alter the rotational speed and torque that is delivered to machines.

Industrial Gearbox- https://businessinmyarea.com/blogs/understanding-the-key-components-and-applications-of-industrial-gearboxes

#CoherentMarketInsights #PowerTransmission #GearboxSolutions #PrecisionGears #MachineryPower

Gear Reducers: An Overview of Their Working and Applications

A gear reducer, also known as a speed reducer or a gearbox, is a mechanical device that is used to reduce the rotational speed of a drive shaft while increasing the torque. This article will provide an overview of how gear reducers work and discuss some common applications where they are utilized.

Gear Reducer- https://themediumblog.com/read-blog/162085

#CoherentMarketInsights #PowerTransmission #MechanicalEfficiency #PrecisionGears #MotionControl

Gear Reducer: Essential Components in Industrial Machinery

Gear wear patterns, uneven teeth wear or damage to gear surfaces can indicate the need for servicing or overhaul.

A Site Selection Framework For Urban Power Substation At Micro-Scale Using Spatial Optimization Strategy And Geospatial Big Data
--
https://doi.org/10.1111/tgis.13093 <-- shared paper
--
“In this study, [they] model spatiotemporal heterogeneity and incorporate it into optimizing the location of substations. The optimized substation placement ensures electrical service coverage for over 99% of the area during peak power usage seasons, compared to the current coverage of 72%...”
#GIS #spatial #mapping #spatialanalysis #spatiotemporal #siting #demand #electricity #heterogeneity #substations #powertransmission #electricalpower #distrubition #service #city #urbanisation #extremeweather #model #modeling #parameters #factors #energycrisis #energy #urbanplanning #routing #outages #framework #UrbanPS #bigdata #AI #machinelearning #Pingxiang #Jiangxi #China #casestudy #coverage #utilisation #dynamic #load #loading #loadbalancing
The solar cycle, geology, and geoelectric hazards for power grids

When sunspots are large and numerous, intense magnetic storms are likely to occur on the Earth. Magnetic storms can generate electric fields in the Earth, and these fields can, in turn, interfere with electric power transmission grids that are grounded at the Earth’s surface. Across the contiguous United States, geoelectric hazards are highest in the Upper Midwest and in the East. These regions correspond to geological structures that are electrically resistive, and they have, historically, experienced the most interference to electric power systems....

[Paywall] America Has a #HotSteel Problem

#Railways, #roads, #PowerLines, #batteries—the heat of #ClimateChange is making them all falter.

By Zoë Schlanger
August 14, 2024

"A basic fact of thermodynamics is coming to haunt every foot of train track in the United States. Heat makes steel expand, moving its molecules farther apart, and as hot days become hotter and more frequent, rail lines are at risk of warping and buckling more often.

"Any fix must deal with this fundamental truth of physics. #Railroads can slow their trains down, which avoids adding more heat. Or they can leave gaps in a rail (or cut them as an emergency measure), which relieves pressure that causes track to bulge but means a potentially bumpier and slower ride. Painting tracks white would help deflect heat, but the paint would need to be reapplied frequently. Adapting to this reality will be expensive, and might ultimately just look as it does now: slow the trains, cut the track, issue a delay.

"Our #infrastructure is simply becoming too hot to function, or at least function well. High heat can also cause bridges to fail, for the same reason as with train tracks. Roads can buckle, thanks to the thermodynamics of concrete and asphalt. In Alaska, where permafrost is thawing into a substrate more akin to a waterbed, roads can resemble an undulating line of ribbon candy. Heat has two effects on #PowerTransmission, and 'both of them are bad,' Bilal Ayyub, a civil-engineering professor at the University of Maryland, told me. One, heat reduces how much electricity power lines can deliver. Two, heat increases demand—everyone turns on their #AirConditioners in unison—further straining an already heat-strained grid, sometimes to its breaking point."

https://www.theatlantic.com/science/archive/2024/08/america-infrastructure-climate-change/679458/?utm_source=pocket-newtab-en-us

#ExtremeHeat #GlobalWarming #HeatWaves #HeatStress

America Has a Hot-Steel Problem

Railways, roads, power lines, batteries—the heat of climate change is making them all falter.

The Atlantic