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Three Phase Cyclo Converter

This module is designed for three phase half wave-step down cycloconverter. It consists of 18 Synchronized firing pulses, 18 SCRs, Relevant power supply and circuitry for frequency divisions.


  • Eightin nos. SCR with RC snubber protection is provided for 3phase
  • cycloconverter power circuit (each phase consist of 6 SCRs) Rated at 1200V@25Amps.
  • Three nos. center tapped inductor (0%.50%, 100%) is provided for power circuit.
  • Eightin nos. Isolated gate pulses for SCR power circuit.
  • One potentiometer is provided to vary the frequency.
  • One potentiometer is provided to vary the output voltage.
  • MCB protection.
  • Housed in sleek screen printer cabinet.
  • Provision for V/F control Power Supply.
  • Input 440V ± 10%, 50HZ three phase AC supply.
  • ± 15V DC, 9V, 9V, 9V AC (3phase) for the firing circuits.
  • 24-0-24V 3phase input for power circuit.