DC current rectifier

three-phase

Aluminium anodizing is sensitive and reactive to DC voltage wave shape and other process parameters. Proper devices are indispensable to reduce costs and times and to increase quality. CAEV produces rectifiers and electronic devices specifically designed for aluminium anodizing. Pulse current rectifiers – adjustable base current, pulse amplitude and duty cycle Ramp Programmers Oxide Thickness Programmers Technical data o Main breaker with handle and locking system o Main transformer according to IEC standards o Thyristor rectifying bridge: six phases with reactor, three phase bridge, twelve pulse bridge o Output voltage and current stepless regulation from 0 to the nominal value o Constant voltage and constant current regulation o Output voltage and current rising ramp regulation o Output voltage and current stabilization: 1% o LC cell filter to reduce output ripple according to customer requests o Manual controls on the front door or in remote control box o Output voltage and current display o Remote PLC control via opt insulated signals: 0-20mA, 4-20mA, 0-10V o Remote PLC control via Modbus or Profibus serial net o Forced air cooling o Closed loop water cooling o Cooling via air conditioner for IP55 enclosures o Epoxydic painting o Enclosure with lugs, feet or wheels. Easily removable. o Enclosure protection degree: IP20…IP55 o Magnetic and thermal protection o Over-temperature protection o Extra-fast fuses for semiconductor devices protection o RC snubbers for semiconductor devices protection o Over-current electronic protection o Input phase sequence monitoring circuit o Auxiliary circuit protection by fuses and breakers