Test method of auto start-up pump during normal operation
Test method of auto start-up pump during normal operation
(OP)
Re the stand-by pumps'(such as auxiliary lube oil pump in forced Lube Oil Type pump or recycle gas comp. lube oil pump system generally consist of steam turbine and Motor pump) auto start-up initiated by Level Low Low signal or Pressure Low Low signal in refinery, How do you usually test periodically that those system is working good or not during normal operation without any effect to the operation?





RE: Test method of auto start-up pump during normal operation
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RE: Test method of auto start-up pump during normal operation
In answer to your direct question, all of this testing should be done with the compressor down. Once the compressor is up and running, it would be too risky to repeat this testing. BigInch is correct that you should be running your spare pumps on some set frequency. We run ours once per month for four hours. On most systems it would not be practical to switch back and forth to get equal run time on both pumps. Generally, only one pump is set up to auto-start. If you want to verify auto-start capability on the system while running, you could have your instrument techs isolate the auto-start switch and pump it up to test with the aux pump turned to off (not in auto).
Johnny Pellin
RE: Test method of auto start-up pump during normal operation
Re your comment of "If you want to verify auto-start capability on the system while running, you could have your instrument techs isolate the auto-start switch and pump it up to test with the aux pump turned to off (not in auto)", would you please specify in detail.
RE: Test method of auto start-up pump during normal operation
Johnny Pellin