Automatically controlled asynchronous machine

MICROMAG uses only dry contacts (with no complex electronic circuit)so that its operation is accessible to everyone. Using this model, students discover little by little the various components of an automatically controlled synchronous machine and, more generally, of a motor, via a theore tical and practical approach.

Educational objectives
• Identifying the internal components of a auto-controlled synchronous machine (theoretical and practical)
• Functioning in motor and in generator
• Achieving the coils and set the switch

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The theoretical approach can be accessedat different study levels. At the secondary school level, the torque, theEMF and the number of turns in the winding are calculated simply by applying formulae. Engineering students will have the necessary mathematical knowledge to establish these relationships by using the laws of electromagnetism and applying them to the MICROMAG machine. MICROMAG comes with a manual containing all of the basic laws which are necessary for understanding the tutorials. Wherever necessary, colour drawings are used to illustrate comments. Angular diagrams, timing diagrams and schematic diagrams are used to illustrate, step-by-step, the operation and/or stages of implementation. In addition, the following is required for all tutorials:
• a 30V DC 2A power supply
• an oscilloscope with a memory function
• a dynamometer
• a gaussmeter – not essential – used for checking the current of the field
• enamelled wire for winding on the rotor(s) (supplied)