Green HV Switching Technologies for Modern Power Networks

In modern power networks with high shares of renewable energy sources, and a mixture of alternating (AC) and direct current (DC) technology in different sections of the network, power switching devices are exposed to more and different stresses compared with those in conventional AC networks.

Another pressure on power switching equipment is to minimize their long-term environmental impact, for example, to relinquish the use of SF₆ with its high global warming potential. Solutions are either...