ELM Efficiency machines for extra-low voltage

VE2.1.1.3
ELM Efficiency machines for extra-low voltage
ELM Efficiency machines for extra-low voltage

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This experiment/set up contains dangerous goods.
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Description

The experiments use the components of the electrical machine teaching model system and operate with protective extra-low voltage. All machines are mounted on a base unit that is arranged vertically in the experiment frame.

Objectives

  • Recognising basic physical principles
  • Recording machine characteristics
  • Introduction to drive technology
  • Use of simple tools (spanners, oil cans etc.) 

 

Due to the lossless rotor excitation and the lower use of raw materials (Al, Fe, Cu), the energy efficiency increases compared to a classic synchronous motor. When used as a direct drive, an additional efficiency gain compared to geared motors can be identified for small motor outputs: permanent magnet motors are wear-free and require neither lubricants nor gears. Even as generators in micro power plants, efficiency machines achieve higher efficiencies than previous solutions allow. In conjunction with the three-phase power supply, block and sinusoidal modulation types can be investigated. The function of the rotor position sensor equipped with Hall elements is also the subject of the experiments. By simply connecting the windings using bridge plugs, star and delta connection can be quickly and clearly converted into each other. Two high-efficiency rotors are available: one rotor with glued-on outer magnets and one rotor with recessed inner magnets. The magnets are colour-coded for pole differentiation. The 10-pin stator windings are also coloured to clarify the assignment to the three phases.

All functions of the Power Analyser CASSY can be operated quickly and directly via the display, the rotary wheel and the buttons on the unit. All settings and measurement results can be saved on the unit and quickly called up again later or simply downloaded.

In addition, the Power Analyser CASSY is fully controllable in real time via RJ45 Ethernet, W-LAN and USB-C interfaces.

These interfaces can be used by the following software:

  • CASSY Lab 2 for drives and energy systems,
  • MATLAB® and LabVIEW ™
  • Lab Docs Editor Advanced

The following integrated servers are available in the Power Analyser CASSY for the local media connection of at least four end devices simultaneously.

For more details, see product data of Power Analyser CASSY (catalogue no. 727100 or 727101).

The equipment includes safe laboratory experiments with safe extra-low voltage. The experiments are carried out with a manual in printed or electronic form.

The target group is trainees at vocational schools as well as students in the first semesters of engineering. The experiments are designed as an introduction at a lower to intermediate learning level.

For further deepening we recommend the following equipment:

  • E2.1.1.2 ELM Linear motor for Extra-Low Voltage
  • E2.1.1.3 ELM Efficiency Machines for Extra-Low Voltage

Topics

  • Synchronous machines (PMSM)
  • BLDC operation
  • Generator operation
  • Block and sinusoidal modulation
  • Rotor position sensor with Hall-effect components
  • Comparison between star and delta configurations
  • Step operation

Components of equipment sets

1 727812  4  ELM rotor position sensor LD
1 727815 ELM set of multipole stator and rotor LD
1 727816  4  ELM PM rotor magnets, interior LD
1 727811  8  Basic machine unit LD
1 72782  4  Basic terminal unit LD
1 72783  8  Set of support film LD
1 72787  4  Star-delta load LD
1 72788  8  Drive unit LD
1 68596  4  Driving belt, long, for drive unit 72788 LD
1 51048  4  Magnets, 35 mm diam., pair LD
3 57906  4  Lamp holder, E10, top, STE 2/19 LD
3 505171  4  Bulbs, 6 V/1.1 W, E10, set of 10 LD
3 505191  4  Bulbs, 15 V/2 W, E10, set of 5 LD
1 727800  8  Storage ELM LD
Manuals:
1 564171  4  LIT-print: Electrical Training Machines, German LD
1 564172  4  * LIT-print: Electrical Training Machines LD
1 775071DE  4  LIT-print: Electrical equipment in hybrid and electric vehicles, German LD
1 775071EN  4  * LIT-print: Electrical Equipment in Hybrid and Electric Vehicles LD
1 727101 Power Analyser CASSY LD
Alternative:
(not included in the total price)
2 531282  8  Multimeter Metrahit Pro LD
1 524013S  8  Sensor-CASSY 2 Starter LD
1 5800136  8  * Tachometer (handheld) LD
Power supply:
1 725722 Low Voltage Three Phase Inverter LD
1 72609  4  Panel frame T130, two-level LD
1 50059  8  Safety bridging plugs, black, set of 10 LD
1 500592  8  Safety bridging plugs with tap, black, set of 10 LD
1 500855  4  Safety experiment cables, 32 A, set of 34 LD
1 56316  4  Hex key LD
1 56331  4  Oil, 100 ml, in dropping bottle LD
H304
Additionally required:
PC with Windows 7/8/10

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

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