FIELD: means of electrochemical protection of underground structures. SUBSTANCE: the offered plant includes cathodic protection station having row of identical channels containing input rectifiers, input energy-storage capacitor, converters, summing transformer and output rectifier, and output energy-storage capacitor. Station has assembled busbars ensuring transverse conductive couplings. Supplied to control unit inlet are signals from transformer test coil and comparison electrode. Control units controls converters. EFFECT: higher reliability of plant operation and quality of protection. 3 cl, 1 dwg
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