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Old 01-31-2005, 06:44 PM
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Strider Strider is offline
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Join Date: Sep 2003
Location: Washington
Posts: 83
Yep, that's right

Yes I do, but I'm not sure for how much longer (we're downsizing, 1 in 5 people are going to get laid off.).

To be fair and balanced for the audience, the bearing failure was not on our main generator, but on an emergency diesel powered generator that is one of three used for providing power to emergency loads if the grid collapses and we lose offsite power. We are required to have all three diesel generators capable of operating for 30 days straight at all times, and one DG had a bad bearing, so after trying to repair it within a tight window, the repair failed and we had to shut down the plant to continue the repairs.

Interesting cause that was, the grounding and electrical isolation of the bearing had failed, and as a rotating piece of metal in a magnetic field, it was building up charges and then arcing. The arcing caused eletrostatic discharge machining on the bearing surface.
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