Patent ID: 11916367
Assignee: HITACHI ENERGY SWITZERLAND AG
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 5:
6. The method of claim 5, wherein calculating each bus impedance comprises multiplying the bus impedance with a correction factor, wherein the correction factor is calculated using a ratio of a fault voltage and the calculated fault current, and shunt admittances of the line sections, wherein the fault voltage is calculated using the estimated fault location, and the shunt admittances are calculated using the estimated fault location and the line parameters,
optionally wherein estimating the source impedance comprises removing contribution of shunt admittance, wherein the contribution of shunt admittance is calculated using one or more of the shunt admittance of the at least one transmission line, and the shunt admittances of the line sections calculated using on the fault location and the line parameters.