Thyristor Control Principles 70-002 (70-032)

This trainer comprises a Firing & Bridges panel, a Three Phase Supply Panel and all of the loads, instrumentation, etc to enable the study of the principles and operation of Single and Three Phase thyristor circuits.

Curriculum Coverage

The Thyristor Control Principles trainer provides extensive training in the principles of thyristor control circuits. The trainer can be used as the basis of a programme, starting with the principles of uncontrolled rectification to simple control using thyristors, then progressing through Single and Three Phase controlled rectification with their associated firing requirements.

The characteristics of various loads: inductive, capacitive and resistive, are studied under half and full-wave, Single and Three Phase rectification, both controlled and uncontrolled. The range of assignment work that can be carried out with the trainer includes:

Uncontrolled Rectification Circuits

  • Single Phase half wave
  • Single Phase full wave
  • Three Phase half wave
  • Three Phase full wave

Controlled Rectification Circuits

  • Single Phase half wave
  • Single Phase full wave
  • Three Phase half wave, star connected supply
  • Three Phase full wave, full controlled bridge

Output from the various converters are measured for average and rms values in conjunction with the various RLC load combinations.

Basic Firing Circuits

  • firing circuit requirements

Advanced Firing Circuits

  • thyristor phasing
  • multipurpose firing circuits Single and Three Phase

Equipment List

  • Three phase supply
  • Variable Resistive Load 200 Ohms
  • Switched 3 Phase Resistive Load
  • Switched Capacitive Load
  • Variable Inductive Load 700mH
  • Moving Iron Voltmeter & Ammeter
  • ac/dc Digital Voltmeter/Ammeter
  • 4mm Patch Lead Set
  • Firing Circuits & Bridges
  • System Frame
  • Oscilloscope/Computer Housing
  • Lead Storage Bin