387-25 Distribution and Shift Factors DSF (1 CEH)

387-25 Distribution and Shift Factors DSF (1 CEH)

Learning objectives

  • Recall how distribution factors help system operators relieve overloaded conditions in the transmission system
  • Define a Power Transfer Distribution Factor (PTDF)
  • Recall the purpose of Outage Distribution Transfer Factors (ODTF)
  • Recall the purpose of Generation Shift Factors (GSF)
  • Given a scenario with an overloaded transmission line supplied by two or more generators, the corresponding Generation Shift Factor (GSF) for each, and the appropriate equation, calculate the amount of power each generator will provide to relieve the overloaded line.

Course overview

A system operator must manage the flow of power from generators across the transmission system to the loads. This management includes how power flows on the transmission system, the disturbance results, and what actions are required to manage the instantaneous flow of electricity. The Distribution and Shift Factors training course demonstrates how system operators keep the system within its System Operating Limits by using distribution and shift factors. It explores the tools used to assist a system operator in maintaining a reliable BES. This online training course is part of the System Operations training series.

The individuals involved in the development and promotion of this course do not receive any compensation or financial benefits outside of their regular employment for their work on this course.


  • 60 minutes
  • Format: Online Interactive
  • Tier: 3
  • Course ID: 15758
Language Icon English
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