Service life of grounding brushes in fully condensed centrifugal compressors
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I would like to ask everyone: Our factory has a fully condensing centrifugal compressor, and its grounding brushes are of the SOHRE brand from the United States; after just one year of use, the bristles on these brushes have all worn out. I would like to ask everyone: what is the approximate lifespan of brushes similar to these in your factory?
Fully condensed ~ “Centrifugal compressor”? ~~~It’s a fully condensing steam turbine, right? ~~~~Brushes generally need to be replaced every about 3 years. Could it be that the surface roughness of the shaft journals in the brush area of your engine is insufficient?
Yes, it is a compressor driven by a fully condensing turbine. Then may I ask, how often do you check the condition of the brushes? I don’t understand how often regular checks are supposed to be done Is it to pull out the brush for inspection? Or just look at the indicated position? Also, what is the acceptable value for the ground resistance when testing with the brushes lifted?
Hello, are you there? Are your carbon brushes from Hangqi?