The paper is devoted to analysis of the cold half-year (October to March) frequency of cyclones in the Mediterranean-Black Sea region associated with the global processes in the ocean-atmosphere system - the Pacific Decadal Oscillation (PDO) and Atlantic Multidecadal Oscillation (AMO). Firstly. climatic conditions in the North Atlantic-European region during positive and negative phas... https://allfixelectricales.shop/product-category/mov-varistor/