E Wirnik z gładkimi nabiegunnikami 300W

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The experiments are carried out using machines of industrial manufacture. All the test machines are equipped with a special base for attachment to the Machine test system 0.3. The system allows the characteristics of the machines under test to be recorded. Power for the machines under test is provided either directly from the mains or via special laboratory power supplies.


  • Protective measures and electrical safety
  • Setting up electrical machines and putting them into operation
  • Use of starting circuits
  • Assessment of electrical machine characteristics

The actual area of application for synchronous machines is as generators. They are used in many forms, from a small shaft generator to supply energy for a ship (output in the kW range) right up to hydrogen-cooled power station generators (output in megawatts). Topics investigated include run-up, excitation and efficiency as well as the various types of loading. One interesting aspect in the subject of power station control, which is handled in greater detail as part of the topic Electric power supply technology.


  • In order to protect against overheating, the stator windings of the test machines are equipped with temperature sensors
  • Should overheating occur, the machine testing system automatically shuts down the machine under test, thus preventing any damage to it.
  • The test machines are equipped with an educationally designed terminal board with the winding configuration printed on it.
  • The ends of all the windings are connected to the terminal board and can be accessed via 4-mm safety sockets.
  • Computer-supported acquisition of measurement data provides for meaningful measurement results.

The individual equipment set is equally suitable for student experiments in laboratories with low voltage supplies (400 V three-phase) and for setting up on a mobile trolley for demonstration by teachers in a classroom. The procedures for the experiments are provided in a printed manual.

The target group is made up of commercial apprentices and students of electrical machine construction. The course offers experiments at an intermediate level and also allows for the necessary insight into machine behaviour for scientific interpretation at undergraduate level.

Synchronous motor topics

  • Operation with no-load and with a permanent three-pole short-circuit
  • Locus diagrams and control characteristics
  • Torque and loading
  • Synchronisation and use of multiple machines in parallel
  • Starting methods for synchronous motors
  • Control of reactive power
  • Power performance

Synchronous generator topics

  • Voltage generation
  • Excitation of synchronous machines
  • Operating response
  • Armature current and torque
  • Braking operation
  • Starting and synchronisation
  • Single-phase generators

Similar to illustration

732 37 Synchronous machine SR 0.3 1
732 40   Resistive load 0.3 1
732 41 Capacitive load 0.3 1
732 42   Inductive load 0.3/1.0 1
726 75   Three-phase supply unit with ELCB 1
745 05 Manual synchronisation unit 1
731 49 Reversing switch 1
745 561 Power circuit breaker module 1
727 32 Moving iron meter, 2.5 A 1
531 282   Multimeter Metrahit Pro 3
727 12   Power factor meter 1
731 989USB   Machine test system 0.3 1
728 421   CBM10 MOMO/FCCP 1
726 09   Panel frame T130, two-level 1
725 852DG   DC machine supply 0.3 1
731 06   Coupling 0.3 1
731 07   Shaft end guard 0.3 1
731 081   Coupling guard 0.3 transparent 1
500 59   Safety bridging plugs, black, set of 10 2
500 591   Safety bridging plugs, yellow/green, set of 10 1
500 851   Safety connecting leads, 32 A, set of 32 1
500 852   Safety connecting leads, 32 A, yellow/green, set of 10 1
569 2351L   LIT: Synchronous Machines (in German) T 10.4.2 1
569 2351S   LIT: Synchronous Machines (in German) T 10.4.2 1
569 2352   * LIT: Synchronous Machines (in English) T 10.4.2 1
additionally required: PC with Windows XP/Vista/7/8
Instead of the transparent coupling guard 731081 there is alternatively a full metal version available under Cat. Nr. 73108.

Articles marked with * are not essential, we do however recommend them to carry out the experiment.



Firma produkuje zestawy edukacyjne do kształcenia akademickiego oraz szkolenia zawodowego z zakresu fizyki, chemii, biologii oraz elektroniki, elektrotechniki, automatyki, telekomunikacji, maszyn elektrycznych, odnawialnych źródeł energii i fotoniki, jest częścią grupy LD Didactic.