electricpy.fault.indmachphs3sc¶
- electricpy.fault.indmachphs3sc(t, Is0, Lr, Ls, Lm, Rr, Rs, wrf=0, freq=60, real=True)[source]¶
Induction Machine 3-Phase SC Calculator.
Determines the short-circuit current at a specified time for a three-phase fault on an unloaded induction machine.
- Parameters:
t (array_like) – The time at which to find the current, may be int, float, or numpy array.
Is0 (complex) – The initial (t=0) current on the stator.
Lr (float) – Inductance of the Rotor (in Henrys).
Ls (float) – Inductance of the Stator (in Henrys).
Lm (float) – Inductance of the Magnetizing branch (in Henrys).
Rr (float) – Resistance of the Rotor (in Ohms).
Rs (float) – Resistance of the Stator (in Ohms).
wrf (float, optional) – Frequency (in radians/sec) of the rotor slip. default=0
freq (float, optional) – Base frequency of the system (in Hertz). default=60
real (bool, optional) – Control argument to force returned value to be real part only. default=True
- Returns:
ias – Fault Current
- Return type:
array_like