Electrical Engineering ⇒ Topic : Magnetic Coupling

MAGNETIC COUPLING:-

Figure (a) shows the magnetic coupling. In this case, a portion of magnetic flux established by one coil interlinks with the other. In this case,energy may be transferred from one circuit to the other through the medium of magnetic flux that is common to both.

                                                              Figure (a)  Magnetic coupling

From Figure (a), if (Φ₁ is the total flux established by V₁ and Φ₂  is the total flux produced by V₂ then Φ₁ and Φ₂ can be written as follows

                                                                          Φ₁ = Φ₁₁ + Φ₁₂

                                                                          Φ₂ = Φ₂₁ + Φ₂₂

where Φ₁₁ and Φ₂₂ are the only fluxes which are linked to coil 1 and coil 2, respectively. Φ₁₂ and Φ₂₁ are the mutual fluxes that are linked to the turns of coil 2 and coil 1, respectively.