Transformer TPK9S.xxx (thereinafter only transformer) is designed and produced by company T Machinery a.s. and together with frequency convertor is designed to feed shearer motors. Equipment is designed for undeground operation in coal and other mines – in enviroment with explosion hazard.
Equipment is designed as three phase transormator, determined for operation in mine electric sets with insulated neutral – IT. Transformer is equiped with with equipment for insulate state monitoring on its secondary side. All electric device of transformer are placed on hard cover. Ecxept instrinsically safe circuits which are brought out to out enviroment wiht explosin hazard.