Symmetrical/RMS Current Calculator.
Function to evaluate the time-constant tau, the symmetrical fault current,
and the RMS current for a faulted circuit.
- Parameters:
- V : float
Voltage magnitude at fault point,
not described as line-to-line or
line-to-neutral.
- R : float
The fault resistance in ohms.
- X : float
The fault impedance in ohms.
- t : float, optional
The time in seconds.
- freq : float, optional
The system frequency in Hz.
- Returns:
tau (float) – The time-constant tau in seconds.
Isym (float) – Symmetrical fault current in amps.
Irms (float) – RMS fault current in amps.