UNSYMMETRICAL FAULT CALCULATIONS – PART – 13 – SINGLE LINE TO GROUND FAULT CURRENT USING MATRIX MANIPULATION

POSITIVE SEQUENCE IMPEDANCE (Z1)

The impedance offered by an equipment or circuit to positive sequence current is called positive sequence impedance.

NEGATIVE SEQUENCE IMPEDANCE (Z2)

The impedance offered by an equipment or circuit to negative sequence current is called negative sequence impedance.

ZERO SEQUENCE IMPEDANCE (Z0)

The impedance offered by an equipment or circuit to zero sequence current is called zero sequence impedance.