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Table 2 Polarization configuration

From: Transmission line protection challenges influenced by inverter-based resources: a review

Polarization Operating Polarizing Details
Self-polarization ZR.IXY − VXY VXY XY = AB, BC, CA
ZR: impedance setting
Cross-polarization without memory ZR.IXY − VXY  − jVZ XY = AB, BC, CA
Z = C, A, B
ZR: impedance setting
Cross-polarization with memory ZR.IXY − VXY  − jVZ_MEM XY = AB, BC, CA
Z = C, A, B
ZR: impedance setting
Positive-sequence memory polarized ZR.IXY − VXY  − jVZ1_MEM XY = AB, BC, CA
Z = C, A, B
ZR: impedance setting
Self-polarization ZR.(IX + kIR) − VXG VXG Z = A, B, C
IR = IA + IB + IC
k = (Z0 − Z1)/3Z1
Cross-polarization without memory ZR.(IX + kIR) − VXG jVYZ X = A, B, C
YZ = BC, CA, AB
IR = IA + IB + IC
k = (Z0 − Z1)/3Z1
Positive-sequence memory polarized ZR.(IX + kIR)-VXG VX1_MEM X = A, B, C
IR = IA + IB + IC
ZR: impedance setting