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Published byFanny Kusuma Modified over 6 years ago
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Basic laws of electric current flow:
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Remedy: alternating current + transformers
NP NS Real transformers: the efficiency may reach 97-98%
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The same “consumer” as before, but now we use transformers:
But the transformers are not 100% effi- cient; suppose that the efficiency of each one is 97%. Then: Without transfor- mers, we had only 50%, and now we have 93%! Transformers give incredible efficiency improvement!
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Now it’s clear why we use all those
high-voltage transmission lines, right?
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Power grid: Java Applet showing how this grid works
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Good Wiki article about the smart grid
US Department of Labor Web Page
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