Does Flux Density Affect the Weight per KVA of a Transformer?

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SUMMARY

The discussion centers on the relationship between flux density and weight per kVA in transformers. Cold-rolled steel with high silicon content allows for higher operating flux densities, which in turn reduces the weight per kVA. This is due to the ability to run transformers at higher currents without increasing losses. Understanding transformer core saturation is essential for grasping this concept.

PREREQUISITES
  • Understanding of transformer core saturation
  • Knowledge of cold-rolled steel properties
  • Familiarity with kVA and its significance in transformer design
  • Basic principles of magnetic flux density
NEXT STEPS
  • Research the effects of high silicon content in transformer cores
  • Study the principles of transformer core saturation
  • Explore the relationship between current, kVA, and transformer efficiency
  • Learn about the impact of material properties on transformer design
USEFUL FOR

Electrical engineers, transformer designers, and students studying power systems will benefit from this discussion, particularly those interested in optimizing transformer performance and weight efficiency.

swayam007
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Homework Statement



Cold-roiled steel of high silicon content enables the designer to use higher operating flux densities with lower loss per kg. The higher flux density reduces the weight per kVA.

Can anyone explain how & why does weight/KVA depends on flux density

Homework Equations




The Attempt at a Solution

 
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swayam007 said:
Cold-roiled steel of high silicon content enables the designer to use higher operating flux densities ...
Higher flux density means you can run the transformer at higher currents. Higher current = higher kVA
 
Look up saturation of a transformer core.
 

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