Helmut Ungrad – författare
Visar alla böcker från författaren Helmut Ungrad. Handla med fri frakt och snabb leverans.
4 produkter
4 produkter
Häftad, Engelska, 2019
969 kr
Skickas inom 10-15 vardagar
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.
Inbunden, Engelska, 1995
3 924 kr
Skickas inom 10-15 vardagar
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.
Inbunden, Tyska, 1994
2 298 kr
Skickas inom 10-15 vardagar
Häftad, Tyska, 2012
1 800 kr
Skickas inom 10-15 vardagar