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Transmissions lines resurrect hi-voltage DC
- upofadown 9y agoThe article doesn't say anything about resurrecting hi-voltage DC in either the title or the body. So it isn't clear what the HN title means, seeing as how HVDC is a reasonably common technology.
- frabbit 9y agoIt's actually what the whole article is about: using hi-voltage DC to connect existing AC networks. For example: "The Denver-based company behind the project hopes to erect a series of steel transmission towers that would stretch a high-voltage direct-current transmission line 730 miles across the American West. "
- upofadown 9y agoI just meant that you can't resurrect something that has never died. So I didn't understand the editorial comment in the title.
- frabbit 9y agoHi-voltage DC lost out in the struggle with AC for power transmission. Now it is "getting a new lease of life" or being "resurrected". The title is an attempt to allude to this in a concise manner.
- upofadown 9y agoDC entirely won for long distance power transmission. You might be thinking of the situation in the early 20th century. There was no previous use of DC for power transmission over any but very short distances because it was not possible to increase the voltage without the use of transformers. Transformers only work with AC.
- grawlinson 9y agoThere's a few HVDC transmission lines around the world. There's one in my country[0] that goes between the 2 main islands. There have been some good advancements in ultra-high-voltage-direct-current (UHVDC) manufacturing, so hopefully it sees some inroads into industry soon. [0]:https://en.wikipedia.org/wiki/HVDC_Inter-Island https://en.wikipedia.org/wiki/HVDC_Inter-Island