Q1/ for the system shown in figure 2 V12 -j40 P 400 MW Y23 =-j20 |V2 1.05 Y13 -j20 Slack Bus V = 1.0/0° 500 MW 400 Mvar Find load flow solution Using Gauss Seidel method Perform two iterations.

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Z parameter

The Z-parameters that are the impedance parameters of a two-port network are defined by expressing the two-port voltages V1 and V2 in terms of two-port currents I1 and I2. The Z-parameters are calculated by open circuiting one of the two ports at a time henceforth they are called open-circuit impedance parameters.