Application of controlled switching to 500 kV shunt reactor current interruption

Statistical analysis of switching overvoltages in UHV transmission lines with a controlled switching

“…The advantage of controlled switching is to reduce inrush current and mitigate over-voltages when operating the CB for switching deferent electrical equipment. The controlled switching is already used for enhancing switching performance of major power system components such as transformer/reactor energisation and de-energisation, capacitor bank energisation and de-energisation [1][2][3][4][5][6][7][8][9][10].…”

Development and Implementation of Intelligent System for Gas Insulated Switchgear

“…Online monitoring technology can improve the operation reliability, extend the service life, and reduce the maintenance cost of GIS [2] [3]. While phase controlled operation, to operate according to the conditions of the circuit, will diminish inrush current and operation overvoltage when the circuit breaker open or make a circuit [4]. Phase controlled operation can also extend the service life of GIS.…”