CALCULATION OF THE COUPLING AND MUTUAL INDUCTANCE COEFFICIENT FOR MAGNETICALLY COUPLED WINDINGS
Mutual inductance coefficients M are used for the analysis and modeling of electrical devices containing inductance coupling elements, which depend on the coupling coefficient Ks between the windings. The assumption found in the literature that Ks = 1, can lead to noticeable errors in the calculations, especially when the Ks values are significantly different from 1. The problem can be solved by calculating Ks and M for a specific transformer design, which requires the use of mathematical methods and programs. This paper proposes a technique based on comparing the transient characteristics of L-shaped and P-shaped (natural) schemes of element replacement with inductive connections and fixation of their coincidence point. The obtained results allow upgrading the efficiency of electromagnetic product design and accuracy in implementation of electrical and electrotechnical equipment design.