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Tool Talk Discussion Forum

Re: Basic AC Power Systems

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David G

04-22-2013 17:11:16
205.215.206.18



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There was a lot of ungrounded delta put in industrial plants in the 50s. Most of it has been replaced.




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John T

04-23-2013 05:36:24
216.249.82.117



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 Re: Basic AC Power Systems in reply to David G, 04-22-2013 17:11:16  
TRUE even in the 30's through the 60's many industrical plants used non grounded straight Delta but that has went out of favor for the same reasons I didnt like it either, I just preferred grounded systems and still do.

Fun chat

John T



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David G

04-23-2013 06:03:09
205.215.206.18



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 Re: Basic AC Power Systems in reply to John T, 04-23-2013 05:36:24  
I think it was about the time distribution changed from 2400 delta to 12477 or 4160 Wye. There is still a little 2400 around here in the smaller communities.



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