Star/delta switchover module (SDU)

System operators use star/delta changeover switches to reduce the starting currents when starting up large AC motors of a specific size directly on the grid. Our tailored didactics module makes the operating principle easy to understand in a practical way.

Learn in a practical way to change the connection type of large AC motors

Teaching aid for practicing with star/delta changeover switches
Practical didactics module: star/delta changeover switches (SDU)
Practical didactics module: star/delta changeover switches (SDU)

When starting up large AC motors directly on the grid, a high starting current is temporarily generated for the relevant systems. This can cause fuses to trip and thus lead to unwanted production downtime. In order to avoid this, operators use star/delta changeover switches to adapt the connection type of their AC asynchronous motor.

We have developed the didactics module on star/delta changeover switches to help prospective specialists to better understand these relationships. As part of subject area 8 "Selecting and integrating drives," it imparts the required basic knowledge in a clear and comprehensible manner. The teaching aid demonstrates in a practical way how to switch the start-up procedure for an AC motor from normal operation with "delta connection" to start-up mode in "star connection" and how to switch it back again.

Real, visible and safely installed equipment from proven drive technology support understanding. Prospective electronics professionals (MT, EBT, EMA, EAT, EAFT, EGS) experience the practice behind the theory in a clear and simple way.

We will be happy to advise you on your needs

  • With our extensive experience in education and training
  • On-site with our didactics specialists
  • With the optimum teaching aid and modules

Your benefits

  • Learn in a practical way

    using exercises on real electric equipment from the product range of a leading drive specialist
  • Understand automation

    by completing customized didactics modules that equip electronics specialists to reliably operate automated systems
  • Practice safely

    thanks to safe installation of live components

Components and technical data

  • Switching sequence "0" – "star" – "delta"
  • Electric rated values:
    • 690 V voltage
    • 25 A current

Practical laboratory tutorials

  • Starting AC asynchronous motors on the grid
  • Breakpoint shifting in frequency inverter operation

Areas of application

The didactics module is suitable for use in technical high schools or for the industrial and technical training of

  • Electronics specialists (MT, EBT, EMA, EAT, EGS)
  • Mechanical engineers
  • Automation technicians
Contact

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