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The primary function of engine oil is to reduce friction between the countless moving parts within the engine. This friction, if left unchecked, can lead to wear and tear, resulting in costly repairs. Engine oil not only lubricates but also cleans the engine, preventing the buildup of sludge and varnish that can impede performance. Additionally, oil helps in sealing the gaps between pistons and cylinder walls, preventing combustion gases from escaping and optimizing engine power.


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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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