The condenser is a kind of heat exchanger that condenses the exhaust steam of the steam turbine into water, also known as the condenser. According to the different ways of steam condensation, condensers can be divided into two types: surface type (also known as wall type) and hybrid type (also known as contact type). In a surface condenser, the vapor separated from the cooling medium is condensed into a liquid on the cooling wall (usually a metal tube). The cooling medium can be water or air. This article focuses on surface (partition) cathodic protection.