Turbine-generator impact torques in routine and fault operations

J. M. Undrill, L. N. Hannett

Research output: Contribution to journalArticlepeer-review

14 Scopus citations


This paper reviews the shaft impact loadings created in turbine-generator shafts by both normal and fault initiated switching sequences. Its objectives are to clarify the significance of shaft impact torque simulations in relation to shaft fatigue life data and to indicate the practicality of handling impact loading questions in the course of normal transient stability calculations. Examples presented in this paper compare shaft impacts produced by unit tripping, single and three-phase faults, high-speed reclosing, and manually timed switching sequences.

Original languageEnglish (US)
Pages (from-to)618-628
Number of pages11
JournalIEEE transactions on power apparatus and systems
Issue number2
StatePublished - 1979
Externally publishedYes

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Engineering(all)
  • Electrical and Electronic Engineering


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