Protective screen, especially a protective screen for drift sand, for an electrical air-cooled machine

摘要

A protective screen or grating, especially a protective screen or grating for drift or blown sand or the like, for an electrical air-cooled machine, comprising essentially vertically arranged profile ledge members disposed in at least two rows, the profile ledge members being provided with at least one row of guide devices located downstream with respect to the flow direction of the cooling air and forming channel walls.