Current transformation

Article no. P1376900 | Type: Experiments

10 Minutes
10 Minutes
grades 7-10 , grades 10-13
Pupils
easy

Principle

When very high current strengths are required on a technical scale, e.g. for welding equipment or electric smelting furnaces, then so-called heavy current transformers are used. Their secondary coils have only a few turns of large diameter wire.
In the case of an ideal transformer under load, the primary and secondary performances are equal, so that I ∕ IN ∕ Ns is valid. The students should recognise from this experiment that the ratio I ∕ Ip increases with increasing load, so that I ∕ I ≈ N ∕ Ns is true for the transformer under load.

Benefits

  • No additional cable connections between the building blocks needed - clear arragned and quick setup
  • Contact saftey due to puzzle blocks system
  • Corrosion-free gold plated contacts
  • Doubled earning sucess: Electric circuit diagram on top, real components can be seen unterside

Tasks

How does a transformer perform under load?

Set up a model of a transformer and use it to examine which conformity to law is given when the transformer is under load.

 

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Digital learning
(en) Experiment guide
p1376900e .pdf
File size 0.33 Mb
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(de) Versuchsbeschreibung
p1376900_de .pdf
File size 1.21 Mb
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(es) Versuchsbeschreibung
p1376900_es .pdf
File size 1.20 Mb
pdf
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Current transformation
- .H5P
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.H5P
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