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  1. McTaggart

    Protection System Management

    We use a database called ASPEN. You can check out the following link, http://www.aspeninc.com
  2. McTaggart

    Generator Reactances Xd", Xd'

    The reactance of a generator changes during a fault. There are three stages, subtransient, transient and synchronous. For most faults, subtransient reactance is used because it produces the highest fault current, i.e worst case scenario. With regards to saturated and unsaturated, I believe this...
  3. McTaggart

    Why are horizontal turbogenerators hydrogen cooled?

    Thanks for the quick replies. Could either of you hazard a guess as to the percentage increase in efficiency of hydrogen vs non-hydrogen cooled units?
  4. McTaggart

    Why are horizontal turbogenerators hydrogen cooled?

    Can someone please summarise the advantages of using hydrogen as a cooling medium for high speed turbines, and perhaps give an indication of any efficiency differences between hydrogen cooled units and water/forced air cooled units? Thanks

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