Kravchenko Y. The Improvement of High-voltage Pulse Capacitors with a Film Non-polar Insulation

A research object is the insulation senescence process of high-voltage pulse capacitors under action of the strong electric fields; a research purpose is the improvement of high-voltage pulse capacitors with a film non-polar insulation on the basis of influencing establishment of the electric field distributing on a resource; the research methods and apparatus are the computation of the electric field in capacitor constructions is produced by the method of scope integral equalizations by transition to the system of linear algebraic equalizations. Determination of calculations error is conducted by the methods of probability theory. Comparison of results of experimental and theoretical researches is conducted on the basis of high-voltage electric insulation destruction processes design methods. Experimental researches on determination of resource descriptions are produced on the capacitors sections with the use the NIPKI «Molniya» NTU «HPI» high-voltage tests apparatus, measuring devices, methods of experiment planning and statistical treatment of results; theoretical and practical results – it is set, that for the combined insulation (from the layers of polar paper and film non-polar dielectrics) by reduction of percentage of the paper dielectric placed at facing, it is possible to attain on 20 % increases of specific energy of capacitor. It is shown, that computation of distributing of the electric field on the surface of electrodes for a multilayer dielectric can be conducted with the use of equivalent computation model with a double layer dielectric. It is set, that most electric durability of insulation interval between the rounding flat electrodes of high-voltage capacitor construction provides insulation placing by the symmetric turn of electrodes by the dielectric layers; novelty – it is shown, that for the combined insulation the electric field tension reduction the near the edge of facing for any values of dielectric permeability of oily layer is achieved by the location of insulation layer with greater dielectric permeability, which has a how possible less thickness, adjoining to facing. Dependences of electric field tension distributing at the edge of capacitor facing with the combined dielectric from the size of corner of facing edge slant, correlations of dielectric permeabilities and geometrical parameters of capacitor construction are specified. It is set, that the use of the combined paper-polypropylene insulation on comparison with paper-castor provides possibility of high-voltage pulse capacitors specific energy rise at the resources less than 10000 pulses; level of realization - job performances are used for high-voltage pulse capacitors perspective types creation: KIM-137, KIM-141, KIM-142 and alternative current capacitors KMR-100-0,016; area of application is planning and making of high-voltage pulse capacitors.