Universal Motor, 1.0 kW

Universal Motor, 1.0 kW
Universal Motor, 1.0 kW

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This experiment/set up contains dangerous goods.
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The experiments are carried out using industrial-design machines. All the test machines possess a special base for connecting the Machine test system 1.0. The testing system can be used to record the characteristics of the machines under test. Power for the machines is supplied by 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

Universal motors are a kind of commutator machine for both DC and AC operation. This is achieved by additional lamination of the iron in the stator. Universal motors can also be called single-phase series-wound motors. They are in widespread use, for example, in household appliances and machine tools.


  • In order to protect against overheating, the stator windings of the machines to be tested are equipped with temperature sensors
  • Should overheating occur, the machine test system automatically shuts down the test machine, thus preventing any damage to it.
  • The machines to be tested 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.
  • Machines in the 1 kW rating class have a powerful and realistic operating response
  • In comparison to smaller machines, their characteristics display distinctive features related to the design.

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.

In this equipment set, a universal motor is operated with direct current.


  • Connection and operation of universal machines in a DC power supply network
  • Reversing direction of rotation
  • Measurement of efficiency
  • Armature reaction and commutation
  • Characteristics of motors
  • Load characteristics

Similar to illustration

Main components:

Components of equipment sets

1 773270 Universal Motor 1.0 LD
1 73353  4  Motor Protection Switch 4-6A LD
1 745561 Power circuit breaker module LD
1 7732689  8  Machine test system 1.0 LD
1 728421  4  CBM10 MOMO/FCCP LD
1 73256  4  Coupling 1.0 LD
1 775225DE  4  LIT: E2.3.2 DC Machines 1.0 (German) LD
1 775225EN  4  LIT: E2.3.2 DC Machines 1.0 LD
2 531282  4  Multimeter Metrahit Pro LD
Power supply:
1 725862DG DC machine supply 1.0 LD
1 72609  8  Panel frame T130, two-level LD
1 50059  4  Safety bridging plugs, black, set of 10 LD
1 500591  8  Safety bridging plugs, yellow/green, set of 10 LD
1 500851  4  Safety connecting leads, 32 A, set of 32 LD
1 500852  4  Safety connecting leads, 32 A, yellow/green, set of 10 LD
additionally required:
PC with Windows 7/8/10
The following material is available for mounting and conversion of machines with the B3 design and a 71 mm shaft  level  at LD.
1 773256  4  Assembly set el. machine base 1.0 short LD
1 773257  8  Assembly set el. machine base 1,0 long LD
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