General principles and different couplings
Linear power networks — Three-phase systems

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General principles and different couplings


Linear power networks — Three-phase systems

Authors : Jean-Marie ESCANÉ, Patrick BASTARD

Publication date: November 10, 2004 | Lire en français

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1. General principles and different couplings

1.1 First approach

Consider an electrical system consisting of three independent loads Z 1 , Z 2 and Z 3 supplied by three voltage sources e 1 (t), e 2 (t) and e 3 (t) (figure 1 ).

Every single-phase circuit has an "out" conductor and a "return" conductor, essential for completing the circuit.

Such a system has interesting properties in the particular case where :

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