3-Phase Transformers

VE2.1.1.2
3-Phase Transformers
3-Phase Transformers

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Description

The experiments are carried out using the STE plug-in system Electricity/Electronics.

Objectives

  • Recognition of basic physical principles
  • Implementation of electrical circuits according to circuit diagrams

Understanding three-phase transformers is one of the key requirements for working with three-phase loads. Three-phase transformers are AC transformers enhanced to handle three-phase current. The primary and secondary windings are provided with six terminals in each case. The vector group determines how the windings are connected, e.g. in a delta-star circuit. Knowledge of such vector groups is important for running multiple three-phase transformers simultaneously.

The equipment set incorporates student experiments which can be carried out in a laboratory safely using safety extra-low voltage. Experiment instructions are contained in a manual in either printed or digital form.

The target group is made up of students in general or vocational education. The experiments are designed as an introduction at a simple level of understanding.

For introductory and more advanced work, the following sets are recommended:

  • E2.1.1.1 Electromagnetism & induction
  • E2.1.1.3 Three-phase rectification
  • E2.1.1.4 Generators and motors

Topics

 

Main components:

Components of equipment sets

1 727514 Basic set T 2.4.1, STE LD
1 57674  4  Plug-in board, DIN A4, STE LD
1 578795 Three-phase voltage supply, 3×12 V, STE 6/100 LD
Manuals:
1 565641L  4  LIT: Three-phase transformers and three-phase transformer circuits, T 2.4.1 (German) LD
1 565641S  4  LIT: Three-phase transformers and three-phase transformer circuits T 2.4.1 (German) LD
1 565642  4  LIT: Three-phase transformers and three-phase transformer circuits T 2.4.1 (English) LD
1 524013S  8  Sensor-CASSY 2 Starter LD
1 575302 * Oscilloscope 30 MHz, digital, PT1265 LD
2 575231  8  * Probe 100 MHz, 1:1 / 10:1 LD
2 531282  8  * Multimeter Metrahit Pro LD
Power supply:
1 562791  4  Plug-in power supply, 12 V AC LD
2 50148  4  Bridging plugs STE 2/19, set of 10 LD
2 50130  8  Connecting lead, 32 A, 100 cm, red LD
2 50133  4  Connecting lead, 32 A, 100 cm, black LD
2 50126  4  Connecting lead, 32 A, 50 cm, blue LD
6 50128  8  Connecting lead, 32 A, 50 cm, black LD
9 50123  4  Connecting lead, 32 A, 25 cm, black LD
3 501641  4  Two-way adapters, red, set of 6 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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