Corrosion and protection of seawater circulating pump are important for safe power generation in coastal power plant. In recent years

cathodic protection technology has been commonly used for protecting the main circulating pump in coastal power plants. Taking 64TKXE15 type seawater circuilating pump used for 300MW unit in one power plant as example

analysis of failure for cathodic protection system in application of impressed current cathodic protection (ICCP) for seawater circulating pump and existing problems have been discussed and summarized

and concrete preventive measures being given.