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Recent content by TMB64

  1. TMB64

    ANAF or ONAN transformers

    1. I have seen them used outdoors in a 3-phase 1.5 MVA application, this was in Africa. The temp was aproximatly 90 degrees F. The units were produced by Crompton Greaves I believe. 2. The 1.5 ANAF unit was a 3 phase cast coil design with fans on the frame that circulated air through the...
  2. TMB64

    Grounding practice

    I would look at the NEC 250 or IEEE 80 depending on what your requirements are.
  3. TMB64

    Combustible Gases in Oil Immersed Tranformer

    I have a specification produced by SD Myers for combustable gas, IFT, power factor and karl fischer criteria. It was very usefull to me for diagnosing issues we had with a 50MVA unit we operate in Haiti.
  4. TMB64

    Rated Power Frequency Withstand Voltage

    what would be the Rated Power Frequency Withstand Voltage for a 75MVA 11KV-161KV 50 HZ?. I need to specify this criteria for a manufacturer. Thanks!
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