Inspec keywords: relay protection; power transmission faults; power transmission protection; power transmission lines

Other keywords: travelling wave-based protection; action zone; prominent capacitive charging current; current quantities; impedance-based pilot protection; external faults; current differential protection; ultra-high-voltage/extra-high-voltage transmission lines; integrated surge impedance; impedance plane; travelling wave differential current; voltage quantities; ISI-based criterion; EMTP simulation; internal faults; power frequency quantities

Subjects: Power system protection; Power transmission, distribution and supply