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<blockquote data-quote="dennishoddy" data-source="post: 3297141" data-attributes="member: 5412"><p>Well, I did about the same thing but it wasn't rain. We(OG&E) had a co-generation gas fired turbine that used the exhaust to generate steam for the refinery and supplied electrical power to the refinery as a backup to their own generators.</p><p>In the process of doing a quality performance audit on the inverter in the control room that used battery banks converted to AC for control power, one of the selector switches was faulty(not known at the time) so when doing the test, I used that switch as part of the test and all hell broke loose. </p><p>The cogen unit tripped offline to no control power, causing steam pressure to fall and in a cascading series of events, the entire refinery went black. Took about 3 minutes to shut down which at one time was the 10th largest refinery in the country, and it was all on me. </p><p>There were some mad refinery operators that ran over to our control room and wanted to know WTF. At the time had no clue but later on when doing an offline test of the inverter we found the faulty switch. Mechanical make-before-break switch that just physically failed. </p><p>Buddy of mine that is a unit operator there told me it cost them many millions of dollars to get back on line.</p></blockquote><p></p>
[QUOTE="dennishoddy, post: 3297141, member: 5412"] Well, I did about the same thing but it wasn't rain. We(OG&E) had a co-generation gas fired turbine that used the exhaust to generate steam for the refinery and supplied electrical power to the refinery as a backup to their own generators. In the process of doing a quality performance audit on the inverter in the control room that used battery banks converted to AC for control power, one of the selector switches was faulty(not known at the time) so when doing the test, I used that switch as part of the test and all hell broke loose. The cogen unit tripped offline to no control power, causing steam pressure to fall and in a cascading series of events, the entire refinery went black. Took about 3 minutes to shut down which at one time was the 10th largest refinery in the country, and it was all on me. There were some mad refinery operators that ran over to our control room and wanted to know WTF. At the time had no clue but later on when doing an offline test of the inverter we found the faulty switch. Mechanical make-before-break switch that just physically failed. Buddy of mine that is a unit operator there told me it cost them many millions of dollars to get back on line. [/QUOTE]
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