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  1. Steve4444

    FCMA drives

    There is a more recent answer to the intent of "Faulty's" application. The Roesel Motor, using written pole technology allows for single phase motors up to 40 Hp and is ideal where power factor and low inrush currents are significant considerations. I don't remember the specs to put...
  2. Steve4444

    Energizing Power Transformer

    To reduce the effects of residual magnetism, therefore reduce the inrush of Large Transformers, drop some load prior to de-energizing the primary. When power is applied to the transformer primary again, it will not have to overcome the residual magnetism left from the last de-energizastion.
  3. Steve4444

    Energizing Power Transformer

    I had been up half the night researching an unrelated topic, when I came across this Forum. Unable to resist checking out anything to do with power quality, I jumped into the middle of an ongoing conversation. Little things like adding a current limiting resistors and inside humor set up a...
  4. Steve4444

    Energizing Power Transformer

    Impedance of a transformer is derived from both the resistance and reactance of the transformer, The resistance is derived from primarily the resistance of the wire and to some degree the silicone/steel laminate material. The reactance is a function of the turns of conductors around the core...

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