Contactor Circuits in Three-phase Systems (230/400 V)
As of a certain power rating, direct switching of three-phase loads becomes impossible. For this reason, such loads are switched indirectly by means of contactor circuits of many different kinds. The development of a control system and installation with functional control are the key points of this unit. The supplementary sets allow additional control exercises with more complexity to be implemented. The supplementary machine set includes all the necessary machines and equipment for testing direct and indirect control of motors in three-phase circuits.
Training Concepts:
  • Drafting a circuit diagram
  • Configuring a motor protection relay in line with the motor's rating plate
  • Contactor circuits with latching
  • Contactor circuit with malfunction alarm triggered by motor overload and including storage of error message
  • Contactor circuit with drop-out delay relay
  • Contactor circuit with pick-up delay relay
  • Pulse-triggered contactor circuit
  • Reversing contactor control with contactor interlocking
  • Contactor-type reversing control with contactor and momentary-contact interlocking
  • Limiting control with mechanical proximity switch and rotation reversal
  • Star-delta circuit
  • Automatic star-delta circuit
  • Automatic star-delta reversing circuit
Product: Contactor Circuits in Three-phase Systems (230/400 V)
Product Code: EST 2.1

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