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Physics
Classical Physics
Electromagnetism
The historical war of currents in Mains Power Distribution: AC vs DC
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[QUOTE="DaveE, post: 6848332, member: 644223"] Umm... No. Just no. I'm not sure where to go with this to fix it. If you imagine a graph of the voltage applied to the primary of a transformer (or inductor) vs. time, then the area under that graph (in volt⋅seconds) determines the flux increase (or decrease for the other polarity). A magnetic material can only tolerate a fixed amount of this applied volt⋅second excitation, or flux, before it saturates (i.e. fills up) after which it stops working like a magnetic core and bad things transpire. So that waveform must have an area below the zero volt line to reduce the accumulation of the sum (or integral) area accumulated over time. A small amount of DC offset for a long time will saturate the core material and make the transformer stop working. Sort of like water flowing into or out of a bucket, it has to balance over time to keep the bucket from overflowing. Honestly, it's a bit too complicated to explain well if you haven't studied physics or electronics much. [/QUOTE]
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Physics
Classical Physics
Electromagnetism
The historical war of currents in Mains Power Distribution: AC vs DC
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