Hello everyone!

In the attached figure, I included the trip curve of the ETU745 electronic trip unit and the data entered in SKM PTW.
 

Therefore, I would like to understand how the trip curves for the ETU745 were derived. How should I calculate the values for I²T (Opening), I²T (Clearing), Delay Opening, and Delay Clearing?

I would like to understand the method so I can input the curve of another electronic trip unit, the ETU45B, which is not available in PTW.

Thank you very much.

Perhaps someone can help me?

Hello

Please start a support request
 

https://sieportal.siemens.com/en-de/support

Thank you so much!