HIRECT make Cathodic Protection Transformer Rectifier unit (TRUs) comprise of Automatic, Manual & CVCC controlled. CP-TRU is used for cathodic protection of buried pipelines across the country,storage tanks at terminals refineries and other buried structures. TRUs are used to prevent submerged (Soil or water) metallic structures from corrosion. All submerged Pipelines (Oil, water etc.), concrete structure of bridges buildings sea ports etc can be protected from corrosion by doing CP.