Multiconductor Cell Analysis Of Power Cable Steady State

The paper deals with the multiconductor analysis of transmission lines namely AC underground cable lines (UGC). A multiconductor matrix procedure based on the use of admittance matrices, which account for the line cells (with earth return currents), different types of sheath bonding, possible multiple circuits, allows predicting the steady-state regime of any cable system. In particular, the method calculates the proportion and behaviour of the phase currents carried by each parallel conductor, the circulating current in the sheath of each cable and the stray current in the earth. A general outline of the multiconductor cell analysis has been thoroughly developed in [1]. Only a brief description of the theoretical procedure will be given in the paper making more room for some examples of application