NDLI: Shaft torques during out-of-phase synchronization

Content Provider	IEEE Xplore Digital Library
Author	Krause, P.C. Hollopeter, W.C. Triezenberg, D.M. Rusche, P.A.
Copyright Year	1963
Abstract	As a consequence of shaft failures in two units in a Consumers Power gas turbine installation, a computer study was Performed to determine the torques In the turbine-generator shaft system during out-of-phase synchronization. Prior to this study, the possible occurrence of excessive torques in the turbine-generator shaft system without damage to the stator windings due to large currents was questioned. If the gas turbine-generator unit is designed to sustain the stator currents and the instantaneous shaft torques resulting from a three phase short circuit at the machine terminals, then the results of this investigation revealed that during out-of-phase synchronization the design torques may be exceeded by 2 to 3 times without exceeding the amplitude of the short circuit stator currents. From this it seems reasonable to infer that shaft failure could occur during out-of-phase synchronization without damage to stator windings due to excessive currents.
Starting Page	1318
Ending Page	1323
Page Count	6
File Size	347046
File Format	PDF
ISSN	00189510
Volume Number	96
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1977-07-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Shafts Computational modeling Turbines Stator windings Mechanical systems Circuit simulation Gears Computer simulation Frequency synchronization Laboratories
Content Type	Text
Resource Type	Article
Subject	Engineering Energy Engineering and Power Technology Electrical and Electronic Engineering

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