confused-engineer81
Member
- Location
- Denver
- Occupation
- Electrical Engineer
Oh wow, the notifications for this post must have gotten buried in my email. Sorry for the late response, and thanks for the feedback!
After a lot of refreshing and studying cable reactance and AC resistance values, and positive/zero sequence impedance, it turns out that SKM automatically adjusts the impedance of cables when you check 50 vs 60Hz in the Options menu.
So, in my case I'm evaluating using AWG/kcmil values in a 50Hz system. I felt pretty dumb after making a spreadsheet from NEC chapter 9 values and conversions to 50Hz values when I found out SKM changes the impedance (X) value automatically.
Interestingly, I was wrong assuming AC and DC resistance are the same. They are different due to the Skin Effect (Affect?). But AC resistance has a negligible difference between 50 and 60Hz.
After a lot of refreshing and studying cable reactance and AC resistance values, and positive/zero sequence impedance, it turns out that SKM automatically adjusts the impedance of cables when you check 50 vs 60Hz in the Options menu.
So, in my case I'm evaluating using AWG/kcmil values in a 50Hz system. I felt pretty dumb after making a spreadsheet from NEC chapter 9 values and conversions to 50Hz values when I found out SKM changes the impedance (X) value automatically.
Interestingly, I was wrong assuming AC and DC resistance are the same. They are different due to the Skin Effect (Affect?). But AC resistance has a negligible difference between 50 and 60Hz.