Core volume of 1 phase transformer

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Discussion Overview

The discussion revolves around calculating the core volume of a single-phase transformer, specifically focusing on the relationship between flux density, flux, and the dimensions of the transformer core. Participants explore the relevance of these parameters in determining the core volume, with a focus on the concept of the "limb" of the transformer.

Discussion Character

  • Homework-related
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant proposes that the volume of the core can be calculated using the formula: volume = 4 * Cross sectional area * height, while accounting for common parts.
  • Several participants seek clarification on the term "limb" and its representation in diagrams, questioning its relevance to the discussion.
  • Another participant emphasizes that flux and flux density are influenced by external electrical excitation and do not directly relate to the core volume or its geometric properties.
  • A participant questions whether the proposed method for calculating core volume is valid if only flux and flux density are considered.

Areas of Agreement / Disagreement

Participants express differing views on the relevance of flux and flux density in calculating core volume. There is no consensus on the validity of the proposed method for determining core volume based solely on these parameters.

Contextual Notes

Participants have not reached a consensus on the definitions and implications of the terms used, particularly "limb," and the relationship between flux, flux density, and core volume remains unresolved.

Noaha
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Homework Statement


The flux density in a single phase core type symmetric(length=breadth=height) transformer is B and flux is Φ. Can we find out the volume of core of transformer if the height of limb is h?

Homework Equations


Φ = B * Cross sectional area

The Attempt at a Solution


Can we say that the volume of core = 4*Cross sectional area*h - Common parts(refer the file uploaded)
 

Attachments

  • core_type_transformer_1.PNG
    core_type_transformer_1.PNG
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If you will explain what you mean by "limb" that would help. Show a "limb" on your diagram?
And what is the point of mentioning B or flux?
 
rude man said:
If you will explain what you mean by "limb" that would help. Show a "limb" on your diagram?
And what is the point of mentioning B or flux?
you can refer the below image for reference. I have mentioned flux and flux density because from these two we can find cross sectional area and with the formula i mentioned above we can find the volume of core.

Is this the right method to get value of volume of core?
 

Attachments

  • transformer.jpg
    transformer.jpg
    7.5 KB · Views: 509
Noaha said:
you can refer the below image for reference. I have mentioned flux and flux density because from these two we can find cross sectional area and with the formula i mentioned above we can find the volume of core.

Is this the right method to get value of volume of core?
B and flux depend on externally applied electrical excitation and have nothing to do with core volume or other geometrical aspects.
 
rude man said:
B and flux depend on externally applied electrical excitation and have nothing to do with core volume or other geometrical aspects.
If we have flux and flux density as the only parameters and we are suppose to find the core volume, will the above method be right?
 
rude man said:
B and flux depend on externally applied electrical excitation and have nothing to do with core volume or other geometrical aspects.
Thanks for the answer.
 

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