electricpy.de_calc¶

electricpy.de_calc(rho, freq=60)[source]¶

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