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Bøger af Helmut Ungrad

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  • af Helmut Ungrad
    881,95 kr.

    Presenting the theoretical principles for, and current state of, electrical power system protection engineering, this work explains the functions of protection and control equipment. It provides application guidelines for every component to be protected in a system, and examines and compares American, British and continental protection philosophies

  • - Grundlagen, Stand der Technik, Neuentwicklungen
    af Willibald Winkler, Andrzej Wiszniewski & Helmut Ungrad
    1.825,95 - 2.526,95 kr.

  • af Helmut Ungrad
    3.518,95 kr.

    Presenting the theoretical principles for, and current state of, electrical power system protection engineering, this work explains the functions of protection and control equipment. It provides application guidelines for every component to be protected in a system, and examines and compares American, British and continental protection philosophies.

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