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What is the Best Practice for time switchover between standby rotating equipment?
 
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26/11/2012 A: Ralph Ragsdale, Ragsdale Refining Courses, ralph.ragsdale@att.net
It depends on the size of the equipment. Sometimes, only a periodic slow roll is performed, instead of switching, the frequency depending on the weight and length of the shaft. The main purpose is to prevent distortion of the shaft.