Nr 2/2016 (526)

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Nr 2/2016 (528) MARIAN HYLA Impact of voltage dips on the operations of a high-power synchronous motor with a reactive power Controller The article presents the impact of voltage dips on the operations of a synchronous motor in the state of synchronism. The following characteristics were determined: static characteristics of the load angle depending on…

Nr 1/2016 (525)

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Nr 1/2016 (528) ARTUR DYLONG Monitoring and prediction of methane emission in the longwall and possibilities to control the longwall system Monitoring systems which are applied in mining today are based on solutions developed in 1990s. The knowledge about methane emission from rock mass and goafs, occurring during the longwall-based coal cutting process, has been…