Three-phase loads are common in AC systems. When the system is balanced the analysis can be simplified to a single equivalent circuit model. However, when it is unbalanced the only practical solution...

Extracted text: Three-phase loads are common in AC systems. When the system is balanced the analysis can be simplified to a single equivalent circuit model. However, when it is unbalanced the only practical solution involves the solution of simultaneous linear equations. In one model the following equations need to be solved using Jacobi iteration method. 20х + у — 2z 3D 17, Зх + 20у - z %3D - 18, 2х - Зу+ 20z %3D 25 Perform three iterations in detail.