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Subject - Mutual inductance
jackleung Anyone know how to calculate the mutual inductance between 2 underground cables?
If I know the soil resistivity, separation between cables and its length...etc.
I only got a check table for it. But I cannot convert it into formula. If I can, the formula can be used in my spreadsheet for easy calculation.

Please help.
Chris Clement A calculation known as least square regression can be used. Can you give me a few table entries?


quote:
Originally posted by jackleung

Anyone know how to calculate the mutual inductance between 2 underground cables?
If I know the soil resistivity, separation between cables and its length...etc.
I only got a check table for it. But I cannot convert it into formula. If I can, the formula can be used in my spreadsheet for easy calculation.

Please help.
cs409 your recommending a formular for predictions?
RanCan101@aol.com Why is it REALITIVE?
lctrc789 IL = e
---
XL
I think this is inductive current formula