Микропроцессорное устройство дистанционной защиты контактной сети 7ST61 / 7ST63

"The relay possesses all functions required to protect a section of the overhead contact line and can therefore be deployed universally. Features: Integration of protection and measurement functions into a single unit (7ST61) Integration of protection, control, measurement and automation functions into a single unit (7ST63) Shortest tripping times due to adaptive protection algorithms Effi cient operation due to a universal tool for all tasks Flexible use thanks to standard communication protocols"