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Three-Phase posted:A small customer is billed based on volt-amperes (correct me if I'm wrong on this and it's just watts - I'd assume they'd measure VAs to account for reactive power). I know for residential, they only bill for watts. For commercial and industrial, I believe it is still a bill for watts, but a certain PF is required or a fee will be imposed like you stated earlier. I just graduated from college and found myself working in the power industry at a power plant. I found that while my college had done a good job at teaching me about a lot of components, they had completely ignored relays. Unfortunately, relays are in practically every electrical system in the plant. On the job training has done a lot for my understanding of how they work practically, but are relays really so rare outside of industrial facilities that universities don't even bother covering them anymore? I guess semiconductor technology is making them somewhat obsolete?
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Sep 5, 2011 05:37
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| # ¿ May 7, 2024 03:07 |
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