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  1. golan

    Wye-Wye Transformer and grounding

    The zero sequence scheme, related to the ground fault, looks different in 2 important references. In the book "Symmetrical components for power systems engineering" by J.L. Blackburn page 54, figure 4.9 f) the scheme is as follows: However, in the IEC 60909-4 standard, page 12, table 1, 1a)...
  2. golan

    HV Substation Design

    Hello,I am an inexperienced protection ingineer. I have I have been looking for the ABB Switchgear manual , but I have not found it in the net in .pdf format. Thanks a lot.

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