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At the heart of any substation are the transformers. These devices play a critical role in changing the voltage levels of electricity. When electricity is transmitted over long distances, it is elevated to high voltages using transmission transformers to reduce energy loss due to resistance in the wires. At the substation, step-down transformers reduce the voltage to a safe level suitable for distribution. Depending on the design, transformers can be classified into various categories, including power transformers, distribution transformers, and auto-transformers, each serving different voltage levels and purposes.


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Another critical challenge facing the long-haul use of commercial EV vehicles is the lack of infrastructure. While electric trucks designed for short-distance transportation can rely on existing urban charging networks, long-haul freight requires a much more extensive charging infrastructure. Unlike diesel trucks, which can refuel at almost any truck stop, electric trucks need strategically placed high-power charging stations along major freight routes.

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