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Some country interconnections, in particular those to UK and Nordic countries, have the ability to connect even unmatched phases, by for example converting to a
by 323 5y ago
Some country interconnections, in particular those to UK and Nordic countries, have the ability to connect even unmatched phases, by for example converting to and from DC (AC -> DC -> AC).
- lxgr 5y agoAustria and the Czech Republic (Czechoslovakia at the time) used to have one of these too: https://en.wikipedia.org/wiki/GK_D%C3%BCrnrohr https://en.wikipedia.org/wiki/GK_D%C3%BCrnrohr
- sebazzz 5y agoThat ability to connect unmatched phases is secondary to the primary function of those interconnects: over those distances it is more efficient to transmit the power in DC instead of AC. [0] [0]: https://en.wikipedia.org/wiki/High-voltage_direct_current#Advantages https://en.wikipedia.org/wiki/High-voltage_direct_current#Ad...
- jamincan 5y agoSometimes connecting unsynchronized grids is the primary reason. The Outaouais HVDC Intertie is only about 35km long, but it allows the import and export of electricity between Ontario and Quebec.
- aerostable_slug 5y agoThis was how the Tres Amigas Superstation was supposed to work. Unfortunately, ERCOT decided they didn't want to be subject to the same regulations as the Eastern and Western interconnects, so the project collapsed.
- martin8412 5y agoEven more fun is that Denmark despite its' very tiny size is split in two when it comes to electricity. West Denmark is connected with East Denmark through HVDC.