Charging-current limitations in cable lines

Steady-state operating conditions of very long EHVAC cable lines

“…If the CL is a branch of a meshed HV/EHV network, reactive power can flow out of both its ends: in this case optimal operation is achieved by equally sharing the reactive power surplus between the terminals [6,7]. With charging current equal to ampacity at both ends, the limit length L Max is twice L Crit .…”