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Intelligent Direct Transfer Trip (DTT) Leveraging Cellular Communications

FebruaryFeb 25 2021 02:00pm - 11:55pm America/New_York

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Calendar-Intelligent Direct Transfer


This webinar will focus on an Intelligent Direct Transfer Trip (DTT) solution using redundant cellular communications being deployed by today’s leading utilities.

Traditionally, Direct Transfer Trip (DTT) signals are sent between substations and remote distributed generation (DG) sites using leased copper telephone lines. If the DTT communication is interrupted, then these DTT systems automatically disconnect the DG site from the power grid. Reliable communication is crucial to avoid unwanted disconnections of DG sites, especially renewable energy power sources. Leased copper lines, however, are becoming less reliable, leading to unwanted disconnection of DG sites. Installation of fiber is not always feasible due to costs.

Join Madison Gas & Electric and Siemens Digital Grid as we discuss a recommended approach of providing intelligent DTT signals using redundant cellular communications channels.

The following topics will be covered:

  • Why is there a need for a different approach to DTT?
  • What makes a cellular solution desirable?
  • What is new and novel in this approach?
  • What are a DTT system’s design features? And what does a system deployment look like?


Jamie Frederick| MGE Distribution Planning Madison Gas & Electric

Jamie Frederick completed his studies in 2010 at the University of Wisconsin – Platteville majoring in Electrical Engineering with a minor in Renewable Energy. He joined Madison Gas and Electric in 2012 working for the Electric System Distribution Planning department. He has performed a variety of engineering tasks including but not limited to system design, protection coordination, distributed energy resource (DER) interconnection studies, equipment settings as well as lead cross functional teams to address various challenges such as arc flash, storm response, and DER interconnection standards. He is a professional engineer.

Andre Smit| Product Manager Siemens

Andre Smit completed his studies at the Vaal University of Technology in Power Engineering in South Africa in 1988. He joined Siemens in 1989, working in the field of protective relaying for the past 32 years. He specialized in generator protection systems. From 2004 to 2008 Managed the USA Siemens Protective relay business unit. Current position is P&C Product Manager for Protection and Automation including Distribution Feeder Automation systems. He is the principal inventor of a new Distribution Automation System and holds various patents on new methods to protect and automate distribution feeders. He is a member of the IEEE.

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