Castlet Single Phase and Three-phase Transformer Rectifier (T/R) units have provided reliable power for Electrostatic Precipitators since 1974. The use of internal silicon rectifiers results in low maintenance costs, increased reliability, and allows higher ambient temperatures and lower cost cooling techniques. Castlet employs internally built integral high reactance technology in the design and manufacture of Transformer Rectifier units, typically with 40% impedance for optimum performance. With the benefit of simplified manufacture, the use of internal reactance technology also reduces the potential risk of equipment failure, unit size and kW losses.

HV Transformer Rectifier Units are used to provide a high negative DC voltage, typically between 45kVpoc to 130kVpoc at DC currents typically between 100mA and 3000mA.

At Castlet we install suitable TR Units for outdoor use. All units are IP65 protection standard, hermetically sealed, ONAN cooled using either mineral oils or synthetic fluids such as Silicone fluid or Midel. Coatings are suitable for outdoor, coastal and aggressive environments.