Hi @adese, thank you for participating in the Industrial Electrical Homework. We have assessed your Homework post , and the below captures our assessments.

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A. You calculated the voltage and turns of the transformer and came up with the name which is correct. We can derive the name of the transformer in several ways.

You got the second part wrong. You have found the voltage ratio of the transformer. I did homework to figure out the turn ratio. I hope you understand your mistake.

B. You have not written the name and function of some important parts like the temperature meter and Buchloj relay of the transformer. These are very important parts of the transformer.

C. The picture of the transformer in your area looks like it is a step-down distribution transformer. Considering the size of the transformer, it has a lot of load. But it will be good for you to know the rating.

D. Your transformer calculation is correct for a 5000 KW load. But if the transformer is equivalent to the load, you will have problems during use—80% of the transformer you can use on load. I hope you understand.

E. The name of the transformer company is Energypac. The name of the transformer can be a step-up or step-down power transformer. I hope you understand your mistake.

F. If you're smart, you've figured it out by matching the nameplate above. LT current is much higher than HT current. A much higher electrical load can be supplied with this transformer.

G. Losses are subtracted from actual power through the power factor. Power companies calculate customer power factor to reduce power loss.

H. If you could mention the primary voltage as well as the secondary voltage in the difference between the transformers, it would be a nicer difference.

The trade name of transformer oil is pyranol, which is true. I hope you understand your mistake.

Thank you for reading Industrial Electrical Lessons and doing homework. Mistakes cannot be made in electrical work, then great damage will be done. Your wrong points are mentioned above. I hope you will be successful in industrial electrical work. Good luck to you.