Rectifiers for electrophoresis

Cathaphoretic painting demands rectiifers apt to supply adlustable direct tension up to hundreds voltage, finely stabilized and smoothed, accurate rising ramps, adjustments according to process phases. Protection devices must be safety and reduntant type .

CAEV design and produce a line af rectifiers for cathaphoresis with adjustable voltages up to 900Vdc and currents up to 3000Adc.

Technical data (for more detailed information download PDF up here)

  • Three phase input voltage according to customer requests
  • Main breaker with handle and locking system
  • Main transformer according to IEC standards
  • Thyristor rectifing bridge: six phase with reactor, three phase bridge, twelve pulse bridge
  • Output voltage and current stepless regulation from 0 to the nominal value
  • Constant voltage and constant current regulation
  • Output voltage and current rising ramp regulation
  • Hold-on adjustable voltage
  • Hold-on voltage activated by external contact
  • Output voltage and current stabilization: 1%
  • LC cell filter to reduce output ripple according to customer requests
  • Manual controls on the front door or in remote control box
  • Output voltage and current display
  • Remote PLC control via optoinsulated signals: 0-20mA, 4-20mA, 0-10V
  • Remote PLC control via Modbus or Profibus serial net
  • Forced air cooling
  • Closed loop water cooling
  • Cooling via air conditioner for IP55 enclosures
  • Epoxidic painting
  • Enclosure with lugs, feet or wheels. Easily removable. 
  • Enclosure protection degree: IP20...IP55
  • Magnetic and thermal protection
  • Over-temperature protection
  • Extra-fast fuses for semicondutor devices protection
  • RC subbers for semiconductor devices protection
  • Over-current electronic protection
  • Input phase sequence monitoring circuit
  • Auxiliary circuit protection by fuses and breakers
  • Copper and aluminium busbars
  • Open gate alarm (Safety relay)

Optional devices

  • Ramp Programmer
  • Amperhour meter
  • Process timers