Variable-frequency transformer: Difference between revisions

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[[AEP Texas]] installed a 100 MW VFT substation in [[Laredo, Texas|Laredo]], Texas, [[United States]] ({{Coord|27|34|13.64|N|99|30|34.98|W|}}) in early 2007. It connects the power systems of [[ERCOT]] (in the United States) to [[Comisión Federal de Electricidad|CFE]] (in Mexico).<ref>[https://web.archive.org/web/20150621212836/http://www.ettexas.com/projects/vft.asp The Laredo VFT Project], a 2015 press release.</ref>
 
Smaller VFTs are used in large land-based [[wind turbine]]s, so that the turbine rotation speed can vary while connected to an [[electric power distribution]] [[electrical grid|grid]].{{cn|date=August 2025}}
 
[[General Electric]] installed a 3 × 100 MW VFT substation in [[Linden, New Jersey]], in the United States in 2009. It connects the power systems of [[PJM Interconnection|PJM]] & [[New York Independent System Operator]] (NYISO). This installation is in parallel with three existing phase-shifting transformers to regulate synchronous power flow.<ref>{{cite web |url=http://geenergyfinancialservices.com/press_releases/view/140 |title=GE to Offer Additional Electric Transmission Capacity from its Smart Grid Transformers at New Jersey Power Plant |author=<!--Staff writer(s); no by-line.--> |date=11 Dec 2012 |website=GE Energy Financial Services Press Release |access-date=7 Apr 2014}}</ref>