Kardash V. Analysis of processes in explosion-proof enclosure for the development of mining electric apparatus for voltage up to 1200 V.

Dissertation is devoted to creation questions and further development of mining explosion-proof complex electric devices (MEED). The aim of work is establishment of physical essence of phenomena and processes in explosion-proof envelope of electric devices in dependence on conditions and routines of their work and with construction peculiarities calculation and volume of the envelope, and on this base - further development of major operational characteristics of MEED. Aggressiveness of the microatmosphere in envelope, to a great extent being instrumental in beginnings of refusals and to diminution of MEED durability, has been established. On base the multiple-factor planned experiment has been got the analytic dependencies of concentration level of separate arc blowout products and air heating level in explosion-proof envelope in function of diverse parameters of operational routines. Analytic dependences and MEED heating computation methods from basic and supplementary sources of heat have been got. T he program for the calculation of the temperature of different MEED elements for any random mode has been written The methods for bring down heating of MEED elements, as well as the MEED mass and size, have been proposed. Taking into account the results MEED has been created, serially making by electrotechnical plants and using in mining industry.