Summary of the 'Guide for abnormal frequency protection for power generating plants' ANSI/IEEE C37.106-198X

The hazards of operating generation equipment at abnormal frequencies are described and acceptable protective schemes are summarized. The discussion covers: generator and turbine over- and underlying capability; underfrequency protection methods for steam turbines; generator-transformer overexcitation considerations; nuclear generating plants; and combustion-turbine underfrequency operation.<
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