Specifications include, but are not limited to: EEM ELECTRICAL MACHINES 300W (or equal) Electrical machines convert electrical energy into mechanical energy or vice versa. A fundamental distinction can be drawn between DC, AC and three-phase machines. The machines used for training in electrical engineering are designed so that nearly all of the circuitry and drives found in industry, commerce and at home can be conveyed in a didactic fashion in hands-on training. Using the servo drive and braking system it is possible to easily determine all of the relevant data for electrical machines. EEM 2-3 DC MACHINES 300W (or equal) In spite of their declining use for industrial purposes DC machines constitute the basis for learning about electrical machines. They demonstrate in a straight-forward manner the various possibilities of open- and closed-loop control of machines. The following training objectives are dealt with for shunt-wound, series-wound and compound-wound machines: Motor operation: • Motor connection • Comparison of shunt-wound, series-wound and compound-wound machines • Typical machine data • Open-loop speed control with starter and field regulator • Reversing the rotation direction • Load characteristics at constant input voltage • Measurement evaluations Generator operation: • Generator connection • Armature voltage as a function of the exciter current • Function and application of the field regulator • Voltage control, self-excitation and separate excitation • Armature current and armature voltage at constant speed and constant exciter current • Load diagram of the generator EEM 3.1-3 AC UNIVERSAL MOTOR 300W (or equal) AC machines can be found with power levels of up to several kW. Their main area of use is in operating mobile loads. AC machines span every area of daily life starting with your electric razor, all the way to washing machines. The following training objectives are dealt with for the universal motor: • Motor connection • Typical machine data • Reversing the rotation direction • Load characteristics • Measurement evaluations EEM 4.1-3 THREE-PHASE INDUCTION MOTOR WITH SQUIRREL CAGE AND DISTINCT PULL-OUT TORQUE 300W (or equal) Asynchronous machines can be found with power levels ranging up into the MW range. Due to their simple design asynchronous squirrel-cage machines are particularly widespread. The training objectives are: • Motor connection • Reversing rotation direction • Manual switching • Machine-specific values and characteristics • Measurement evaluation • Star-delta connection • Steinmetz circuit • Reactance power compensation with capacitors of various capacitance