electricpy.fault.thermaltime¶

electricpy.fault.thermaltime(In, Ibase, tbase)[source]¶

Thermal Time Limit Calculator.

Computes the maximum allowable time for a specified current In given parameters for a maximum current and time at some other level, (Ibase, tbase).

Uses the following formula:

\[t_n=\frac{I_{base}^2*t_{base}}{I_n^2}\]

Parameters:¶

In : float¶

Current at which to calculate max time.

Ibase : float¶

Base current, at which maximum time tbase is allowable.

tbase : float¶

Base time for which a maximum allowable current Ibase is specified. Unitless.

Returns:¶

tn – Time allowable for specified current, In.

Return type:¶

float