Simulating the mode of one-sided switching-on of an ultra-high voltage power line using a device for synchronizing the moments of switching-on the contacts of the circuit breaker phases

Simulating the switching on of an overhead power transmission line (PTL) ultra-high voltage in a dead-end mode, containing significant aperiodic current component, both from switch control key and three-phase automatic reclosing (TARC) cycle, is performed using MATLAB software package. The aim modelling to search find optimal modes electrical operation terms admitting values component assessing possible overvoltages phases lines. possibility phase-by-phase high-voltage circuit breaker, which ensures closing contacts breaker phase at moment maximum value instantaneous these contacts, checked as measure that can significantly reduce influence damaging equipment developing emergency situation system. results obtained be used practically eliminate all (dead-end mode (OL), unsuccessful cycle (ARC) for types short circuits line) with shunt reactors put into without putting them operation.