The effect of grid frequency decay transients on pressurized water reactors

1 January 1976

journal article
Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems

Vol. 95 (1) , 269-274
https://doi.org/10.1109/T-PAS.1976.32101

Abstract

This paper describes the effects of loss of reactor coolant flow as caused by power system frequency decay on a Westinghouse pressurized water reactor. A protection scheme employing measurement of coolant flow, and reactor coolant pump power supply voltage and frequency is described. Analyses are presented which provide a basis for a low frequency reactor trip setpoint which adequately protects the nuclear plant, and which does not unduly compromise plant availability.

Keywords

INDUCTORS
COOLANTS
POWER SYSTEM PROTECTION
POWER SYSTEM TRANSIENTS
POWER SYSTEM ANALYSIS COMPUTING
POWER SYSTEM MEASUREMENTS
POWER MEASUREMENT
FREQUENCY MEASUREMENT
FLUID FLOW MEASUREMENT
POWER SUPPLIES

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