electricpy.de_calc

electricpy.de_calc(rho, freq=60)

De Transmission Line Value Calculator.

Simple calculator to find the De value for a line with particular earth resistivity (rho).

\[D_e=D_{e_{\text{constant}}}\sqrt{\frac{\rho}{freq}}\]

Parameters:

• rho (float) – Earth resistivity (in ohm-meters), may also be passed a string in the set: {SEA, SWAMP, AVG,AVERAGE,DAMP,DRY,SAND,SANDSTONE}

• freq (float, optional) – System frequency in Hertz, default=60