Secondary Pump Failures

These are treated in exactly the same way as primary pump coast-downs or seizures were, and the resulting flow changes are input to the model, which includes the secondary circuit details.

The resulting transients are, of course, much less serious than primary pump failures because of the attenuation by the secondary and cold leg primary sodium. They are more of interest in the operational sense than in the safety sense.

2.4.2 Tertiary Loop Failures