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Carbidereaper t1_ixl803l wrote

Reply to comment by AFSAlameda in If a solar flare were to wipe most if not all technology, what plans/countermeasure could be taken to slow rebuild things like the internet? by Zak_the_Reaper

It’s actually only 2 to 5 years because only a few companies actually build them and they have to be ordered years in advance they can weigh hundreds of tons and can only be hauled by specialized rail cars and tractor trailers http://energyskeptic.com/2015/power-transformers-that-take-up-to-2-years-to-build/

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nesquikchocolate t1_ixld5n5 wrote

Why wouldn't you just repair the damaged ones? It's much quicker.

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Carbidereaper t1_ixm04sh wrote

Well depending on the damage you aren’t going to be able to repair them on site step 3 and 6 being very important quote from article

Production. The typical manufacturing process of an LPT consists of the following steps:

  1. Engineering and design: LPT design is complex, balancing the costs of raw materials (copper, steel, and cooling oil), electrical losses, manufacturing labor hours, plant capability constraints, and shipping constraints.

  2. Core building: The core is the most critical component of an LPT, which requires a highly-trained and skilled workforce and cold-rolled, grain-oriented (CRGO) laminated electrical steel.

  3. Windings production and assembly of the core and windings: Windings are predominantly copper and have an insulating material.

  4. Drying operations: Excess moisture must be removed from the core and windings because moisture can degrade the dielectric strength of the insulation.

  5. Tank production: A tank must be completed before the winding and core assembly finish the drying phase so that the core and windings do not start to reabsorb moisture.

  6. Final assembly of the LPT: The final assembly must be done in a clean environment; even a tiny amount of dust or moisture can deteriorate the performance of an LPT.

  7. Testing: Testing is performed to ensure the accuracy of voltage ratios, verify power ratings, and determine electrical impedances.

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