Open AccessPFP supply fan motor starters
Author(s) -
Rüdiger Keck
Publication year - 1995
Language(s) - English
Resource type - Reports
DOI - 10.2172/90054
Subject(s) - shutdown , contactor , ventilation (architecture) , engineering , automotive engineering , marine engineering , environmental science , mechanical engineering , nuclear engineering , power (physics) , physics , quantum mechanics
The Plutonium Finishing Plant (PFP) is currently stabilizing about 25 kg of Pu sludge; upon completion of this task, PFP will be maintained in a safe standby condition to await decision from the PFP NEPA review. It can take about 10 years to initiate and complete terminal cleanout after this; the facility will then be decommissioned and decontaminated. The 234-5Z ventilation system must continue to operate until terminal cleanout. Part of the ventilation system is the seismic fan shutdown system which shuts down the ventilation supply fans in case of strong earthquake. This document presents criteria for installing solid state, reduced voltage motor starters and isolation contactors for the 8 main ventilation supply fans. The isolation contactors will shutdown the supply fans in event of earthquake