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  1. Beo81

    Minimum Short Circuit Calculation IEC 363

    According to IEC Standard, maximum and minimum short circuit levels should be calculated. I am using EDSA, and can not see that there is a module for calculating minimum values. There is however the 30-cycle steady-state calculation, can this be used? What do I need to do in order to get...
  2. Beo81

    Wye-Delta starter contributing to Short Circuit Level?

    We are doing short circuit calculations according to IEC 363 on a network where a motor is driven by a wye-delta starter. In IEC 363 you can select the motor reactances to be calculated according to its relative starting current. However, the wye-delta starter of course reduces this starting...
  3. Beo81

    Transformer Vector Group Connection

    What is the difference between a Yd11 tranformer and Dy11? I have a distribution transformer (440V/230V) connected in Dy11. As I recommended. However, there are other people saying that it should be Yd11... Please advise.

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