The calculation method of the inductance for three-phase air reactors

For the design of air core reactors, the inductance calculation is an important technical parameter. Because air core reactors usually work in the three-phase condition, in this paper, the calculation method of the inductance of three-phase air reactors is obtained by using the method of equal division. Firstly, the magnetic flux, the induced potential and the self inductance and mutual inductance of the single-phase air reactor can be calculated accurately by using the method of equal division, Then, the division of different methods was taken according to the structure characteristics of three-phase reactors, and the calculation method of the mutual inductance between coils can be worked out for the three-phase air reactor in the different arrangements. This method is high accurate, simple and practical. The calculation example was given.