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  1. Sanditech

    American Voltage

    Hi I am trying to find the common voltage level(LV)of medium to large industrial plants in North America. All I can ascertain at present is a domestic level of 120V 60Hz P-N. Which based on the standard UK distribution sytem would give 210V P-P ? But do industrial (petro-chem) use this as there...
  2. Sanditech

    6kV/0.4kV Transformer Fed by 7kV?

    I am at a site where a 6Kv/0.4kV 1.25MvA Cast Resin Transformer is being fed by 7kV (Utillity Co will rectify soon?). What affect would this increased voltage have on the transformer? More with respect to heating than degregation of insulation? Its is intermittantley run at 6% of load capacity...

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