363kV GIS Introduction Single line diagram Layout Main parameters: Circuit Breaker (CB) Type CFPTB-120-40L-FAR3 Rated voltage 126/145 kV Rated frequency 50Hz Rated current 1250/2000/2500/3150A First-pole-to-clear factor 1.5 Rated short-circuit breaking current (3s) 40 kA Break time ＜60ms Rated short-circuit making current 108 kA Rated peak withstand current 108 kA Making capacity in short-line fault conditions (L75/L90) 30 / 36 kA Rated out-of-phase breaking current 10kA Rated out-of-phase breaking current 50A Cable charging breaking current 160A Power frequency withstand voltage 275/315 kV Lightning impulse withstand voltage 650/750 kV Rated SF6 gas pressure 0.6 Mpa.G Operating type spring Disconnecting Switch (DS) Type CFLB-EA Rated voltage 126/145 kV Rated current 1250/2000/2500/3150A Rated short-time withstand current 40 kA (3s) Operating type Motor Earthing Switch (ES) Type CFL-EEA Rated voltage 126/145 kV Rated short-time withstand current 40 kA (3s) Operating type Motor Fast Earthing Switch (FES) Type CFGM-FA Rated voltage 126/145 kV Rated short-time withstand current 40 kA (3s) Operating type spring Main Bus Type Three-phase enclosed Rated voltage 126/145 kV Rated current 1250/2000/2500/3150A Rated short-time withstand current 40 kA (3s) Rated SF6 gas pressure 0.6 Mpa.G 363kV GIS Single Line Diagram 363kV GIS Layout Diagram 363kV GIS Structure Diagram BACK ↑TOP
