What is required to reset a Main FeedWater pump after a trip?

To reset a Main FeedWater pump after a trip, it is essential to engage the trip/reset switch. This switch is designed to acknowledge the trip condition and allow the system to return to normal operational status. When a pump trips, it often enters a protective mode to prevent damage or unsafe conditions, and the trip/reset switch is a critical component in signaling that the necessary checks have been completed and the operator deems it safe to restart.

Engaging the trip/reset switch typically involves confirming that safety conditions, such as pressure levels and operational parameters, are within acceptable limits. This step ensures that the pump can be safely restored to normal functioning without putting the system or equipment at risk.

The other choices do not directly relate to the reset process. For example, completely shutting down the pump is not always necessary for a reset; instead, just flipping the reset switch is sufficient. Opening turbine control valves is not a requirement for resetting the pump, as their position is more related to the operational context than the reset procedure itself. Lastly, suction pressure being below 300 psig does not influence the reset directly; while maintaining appropriate suction pressure is critical for safe operation, it is not a prerequisite for resetting the pump after a trip.