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Table 3 Polarization for zero- and negative-sequence

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

Polarization Operating Variables Comments
Zero-sequence current polarization (32I) T = Re[3I0. IPOL*] I0, IPOL IPOL: Current polarization
Negative-sequence voltage polarization (32Q) z2 = Re[V2 (I2 .1∟Z1ANG)*]/I22 I2, V2, Z1ANG Z1ANG: impedance setting
Zero-sequence voltage polarization (32 V) z0=Re[3V0 (3I0.1∟Z0MTA)]/(3I0)2 3I0, 3V0, Z0MTA Z0MTA: maximum torque angle, setting