An upgrade from a SR to a Multilin 8 Series device can fulfill today’s increasing demands for faster and more accurate, reliable and secure multifunction protection, as well as asset monitoring.

An upgrade from a SR to a Multilin 8 Series device can fulfill today’s increasing demands for faster and more accurate, reliable and secure multifunction protection, as well as asset monitoring.

This paper shows a practical process bus architecture conforming to IEC 61850-9-2 that fits the task of protection and control of substations by drawing from the universal topology rules of substations.

This paper presents a case study for typically used redundant schemes and demonstrates some common implementation errors, pseudo redundancy, and illustrations of two relays providing inadequate redundancy.