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Passenger vehicles can be classified into several categories based on their design, capacity, and intended use. The most common type is the automobile, which is typically designed to carry one to five passengers. This category includes sedans, hatchbacks, coupes, and convertibles. Then there are vans and minivans, which accommodate larger groups, often seating six to eight people. Larger passenger vehicles, such as SUVs (Sport Utility Vehicles) and crossovers, combine features of passenger cars with added capability and space, often suitable for both urban and off-road driving.


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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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