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  1. garyhereto

    Step down transformer

    I have a oil cooled 3 phase 480vac to 380vac and neutral step down transformer rated at 20KVA roughly 40 amps per phase to neutral. What are USA standards in Tulsa concerning the protection needed and wiring of such a system. My machine that i am supplying has an Isolator rated 40amps and i have...
  2. garyhereto

    Step up Transformer for Compax 3 AC Drive

    I am wanting to know if there is anyone out there that has used a Toroidal Transformer to step up from 110VAC to 230VAC 13Amps to supply a Compax 3 or any servo drive motor before and if there are any thing that needs to be concidered when doing so? Is it correct to say that a Toroidal...

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