Power transformer with inferior core

In summary, a power transformer manufacturer in an economically boycotted country faced material supply issues and had to use inferior material during the boycott. They followed construction algorithms dictated by a foreign company, but later discovered that this deviation affected not only power losses, but also the short circuit withstand of the transformers. This was due to the core material selection, which can impact the ability of the transformer to withstand short circuit currents. This topic may have been moved because it appears to be a homework problem.
  • #1
m.s.j
215
1
A power transformer manufacturer which was located in economical boycotted country met some problems in material provision.
The core material and some other things shall be supplied by a foreign company that they work under its license. While boycotting duration they got to use inferior material in core transformer construction. Whereas they didn't have adequate base knowledge of transformer design, they followed all construction algorithms that were dictated by foreign company. They thought this instruction deviation only influenced the power losses of transformers, but in practice they found other important problem about short circuit withstand of transformers. The power transformers windings sometimes were damaged mechanically due to a sever short circuit fault current.


What is your opinion? How core material selection influenced the transformer withstand against short circuit current?
 
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  • #2
Why this topic is moved?
 
Last edited:
  • #3
m.s.j said:
Why this topic is moved?
Because it appears to be a homework problem.

One has to ask what in the tranformer core properties would effect the short circuit current.
 

1. What is a power transformer with an inferior core?

A power transformer with an inferior core is a type of transformer that has a lower quality core material, typically made of lower-grade laminated steel, compared to other transformers. This can result in lower efficiency and performance of the transformer.

2. How does an inferior core affect the performance of a power transformer?

An inferior core can lead to higher levels of core losses, which can result in increased heat generation and reduced efficiency of the transformer. It can also impact the voltage regulation and overall reliability of the transformer.

3. What are some potential causes of an inferior core in a power transformer?

An inferior core can result from using lower quality materials, improper manufacturing processes, or damage to the core during transportation or installation. It can also be caused by aging and wear of the core over time.

4. Can an inferior core be repaired or replaced?

In some cases, an inferior core can be repaired or replaced by a professional. However, this can be a costly and time-consuming process, and it is often more efficient to replace the entire transformer with a higher quality one.

5. How can I prevent purchasing a power transformer with an inferior core?

To prevent purchasing a power transformer with an inferior core, it is important to do thorough research on the manufacturer and their quality control processes. It is also recommended to work with a trusted and experienced supplier who can provide reliable and high-quality transformers.

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