Shayda V. The raising of efficiency of the use of active materials in the magnetic system of middle power DC machines

Plant of researching - electromagnetic processes, that occur in the middle power dc machines for general purpose; purpose of researching - economy of financial resources in the magnetic system of the dc machines and rising the technical and economical indexes in away of designing technique improvement; methods of researching and equipment - mathematical modeling and computer simulating, physical modeling and real machines experiments on the test stands; theoretical and practical results - polynomial associations was obtained, that allow to evaluate the effect of magnetic system constructive factors on its parameters; designing technique was improved in away of its precision rising; general purpose program complex was created, that allow to define the geometry and electromagnetic parameters of the magnetic system; test machine model was designed and explored; novelty - criteria of evaluation of magnetic system; associations for complex of constructive parameters defining of geometry of main pole and coil winding excitation was offered; improved of dispersion coefficient calculation was offered; level of realization - during different modification development and dc machines 5P series parts designing on OS "Electromashina" and SE SPE "ELMES" Kharkov; area of application - new series of middle power dc machines for general purpose designing and modernization of the obsolete series.