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Information × Registration Number 2116U002037, Article popup.category Thesis Title popup.author popup.publication 01-01-2016 popup.source_user Сумський державний університет popup.source http://essuir.sumdu.edu.ua/handle/123456789/49068 popup.publisher Sumy State University Description It is well-known that in mines for mining equipment supply is used the high voltage values (U = 1140/660 V). Besides, the safety system’s devices are based on chip components that used the spark-safe voltage of lesser of 5 V. Taking into account this fact, for automation systems supply a lot of companies produced the low-voltage power supplies. To convert the high-voltage into low-voltage are used transformers or high-voltage capacitors in pulsed power supplies. These devices have a significantly overall dimension and are needed to use a bulk explosion-safe protective covers. There is also difficult problem of the electro-magnetic pulses safety. These pulses are occurred while switching the electrical motors with power. popup.nrat_date 2025-05-12 Close