Drives with industrial frequency converter, 0.3

VE2.5.3.4
Drives with industrial frequency converter, 0.3 Drives with Industry Frequency Converter 0.3 (E2.5.3.4)
Drives with industrial frequency converter, 0.3
Drives with industrial frequency converter, 0.3 Drives with Industry Frequency Converter 0.3 (E2.5.3.4)
Drives with industrial frequency converter, 0.3

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Description

The power electronics part of this lab course uses training panels. The electrical machine employed is an industrial machine on a base, whereby its characteristics are determined using the machine test system 0.3. Power is supplied to the machine under test via an industrial frequency converter, which obtains its power from the mains network (mains voltage, 230 V).

Objectives

  • Protective measures and electrical safety
  • Set-up of power generating systems according to circuit diagrams
  • Putting electrical drives into operation
  • Recording of load characteristics with various operating parameters
  • Achieving skills in measuring electrical machines
  • Automatic speed control for an asynchronous (induction) machine
  • Measurements are carried out with the Machine Test CASSY.

Industrial frequency converters are used for machine optimisation and automation. The equipment includes an industrial, compact frequency converter. The focus of the experiments is on commissioning and parametrising the converter and investigating the machine behaviour.
The manufacturer's software is used for parametrisation; programming by hand is possible but not didactically useful given the large number of parameters.


Highlights:

  • The measurements are carried out with the Machine Test CASSY.
  • All measuring channels are potential-free and can therefore be used freely.
  • All measurements can be carried out with or without a computer.
  • To protect against overheating, the stator windings of the asynchronous motor are equipped with temperature detectors.
  • The asynchronous motor has a didactic terminal board with the winding diagram printed on it.

All functions of the Machine Test CASSY 0.3 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 Machine Test CASSY 0.3 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 Machine Test CASSY 0.3 for the local media connection of at least four end devices simultaneously.

For more details, see product data 7731900 or 7731901 Machine Test CASSY 0.3

The equipment is equally suitable for pupil and student experiments in the laboratory with low voltage (DC, AC and three-phase current) and - with a mobile trainer - for teacher demonstrations in the classroom or lecture hall. The experiments are carried out according to the 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. The media connection makes the experiments suitable for demonstration in the classroom or a lecture hall.

In the following configurations there are further extended experiments with a frequency converter and an asynchronous machine:

  • E2.5.3.2 Basics of frequency converter technology
  • E2.5.3.3 Drives with educational frequency converter
  • E2.5.4.4 Operating behaviour of speed-variable asynchronous motors under load
  • E2.6.2.2 AC servo with industrial asynchronous machine

Topics

  • Design of drives with asynchronous motors
  • Torque, efficiency and optimal magnetisation
  • Setting the parameters of the frequency converter
  • Measurements of the converter output voltage
  • Voltage and current vector
  • Starting a drive with a frequency converter
  • Influence of slip compensation
  • Influence of load compensation
  • Recording the V/f characteristic at different load conditions.

Components of equipment sets

1 7735313  8  Industrial frequency converter LD
1 7732104 Squirrel cage motor 230/400, 0.3 LD
Machine test system 300 W
1 7731901 Machine Test CASSY 0.3 LD
1 524222 CASSY Lab 2 for Drives and Power Systems LD
1 7731991 Electrical dynamometer, 0.3 LD
1 773108  8  Coupling / shaft end guard 0.3, transparent LD
1 31539  4  Weight, 1 kg LD
1 773110 Machine base bench, 90 cm LD

Alternative machine base unit:

A longer machine base unit is required if drives with commutation are used.
1 773115 Machine base bench, 120 cm LD
1 73106  4  Coupling, 0.3 LD
1 537341 Rheostat 102 Ohm LD
Manuals:
1 775290DE  4  LIT-print: Drives with industrial frequency converter 0.3, German LD
1 775290EN  4  * LIT-print: Drives with industrial frequency converter 0.3 LD
1 72609  4  Panel frame T130, two-level LD
1 6893001 Set for equipotential bonding 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 500591  4  Safety bridging plugs, yellow/green, set of 10 LD
1 500855  4  Safety experiment cables, 32 A, set of 34 LD
1 500856  4  Safety experiment cables, 32 A, yellow/green, set of 5 LD
2 500602  4  Safety experiment cable, 10 cm, blue LD
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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