Hi @max-pro, 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. An important distinction you can make between motors, generators and transformers is about losses. The motor and generator have rotating parts, so their losses are high. Transformers have no rotating parts, so their losses are lower. Also, you have mentioned important differences. (0.4 Mark)

B. Lightning arrestors are most widely used in the power sector because electrical home appliances are damaged in homes due to lightning strikes. However, due to climate change, lightning has increased, and many people have died in the locality. Therefore, it is important to protect people's lives by installing lightning arresters in the locality. (1.5 Marks)

C. You have figured out the current of the generator, which is correct. A generator should be set at 80% of the MCCB setting so that the generator shuts down when overloaded. It is very important to learn how to calculate a generator. (2 Marks)

D. You will purchase a 6 KVA generator by calculating the correct electrical load. Hopefully, you can purchase a generator for your home based on the electrical load. (1.5 Marks)

E. You tried to learn about lightning arresters. One thing to note in your drawing is that the copper rod cannot touch any other metal. When lightning strikes, the copper rod will travel deep into the ground through the cable. (1.5 Marks)

Thank you for reading Industrial Electrical Lessons and doing homework. I was supposed to make a lightning arrester in my practical, so I couldn't give you full marks. But you tried. Even if we spend money in our country, people will be forced to install lightning protection devices at some point because lightning is increasing day by day. Good luck to you.