Ground Testing


Learning the Logic: Implementing the 850 Relay's Main-Tie-Main Auto Transfer Scheme

Maintaining system reliability in the event of a fault on an incoming line is paramount. Enter the main-tie-main (MTM) transfer scheme for the Multilin 850 feeder protection relay. Whether you’re implementing a traditional hard-wired relay scheme or using the latest technology including IEC 61850 GOOSE messaging to manage your inter-relay communication, understanding the logic and settings needed to establish this scheme using the 850 is an essential skill.

Join GE expert Christine Crites for a webinar and live Q&A session on MTM transfer schemes with the 850, part of our ongoing series of Tech Talks to refresh your knowledge on key protection and control fundamentals.

In this session, learn about:

  • The fundamentals of the MTM transfer scheme for the 850, including logic and settings

  • How to implement the logic for either a traditional hard-wired set up, or one that takes advantage of current technology such as IEC 61850 GOOSE messaging

  • Step-by-step instruction on relay setting and GOOSE message set-up