| 摘要 |
A three-dimensional electromagnetic system comprises a core in the form of yokes and at least one leg which has a form of symmetric hexahedron-shaped outer boundary. Every leg is constituted by overlapping electrotechnical steel packs having parallelogram-shaped cross section. Cross section of steel packs may be formed by rhomb sides superposed at angles of 120. In the electromagnetic system with bias adjustment intended for changing phases number from three to six, yokes are divided into parts in tangential direction along leg phase axes by gaps, legs have regions for location of coils of a bias winding installed in gaps between yoke parts, other coil sides cover peripheral surfaces of legs and are installed into holes formed along phase axes of legs. According to the mentioned embodiments of electromagnetic systems, legs are bladed up using identical square sheets (plates) or using method of electrotechnical steel strip wound with axial shift of winding turns together with parts of branching yoke and symmetric hexahedron-shaped winding coils are formed that simplifies construction of the core and reduces average length of winding turns. Features of design and embodiments configuration of the three-dimensional electromagnetic system provide improvement of mass and dimensions parameters, as well as energy datum of transformers, reactors and chokes. |
