Transmission & distribution equipment

Paris Session 2018

Tutorial

This tutorial explains various switching equipment used in power systems in collaboration with CIGRE SC A3 Green book publication. The new Green book on switching equipment covers various equipment in power systems, current interrupting phenomena with different technologies, fault current limiters, surge arrestors, controlled switching and DC circuit breakers. The tutorial highlights the historical design transition of circuit breakers (oil, air-blast, SF6 and vacuum), fundamental switching phenomena, switchgear applied at distribution levels, and future interruption technologies.