You can also use the readings to help monitor for any problems and facilitate preventive service on the suspect areas. By recording these readings, you will have a baseline and running record for reference that can be analyzed. Observe and record oil pressure and temperature gauges and also scan specific areas of the motor-generator with a hand-held IR thermometer or thermal scanner. It is also good practice to take some voltage and current measurements, as well as rpm and frequency readings. While it may be boring to stand around for 30 to 60 minutes just looking at a running generator, it is a good time to listen for unusual sounds and inspect the generator for fluid leaks. More tips about data center backup power Using flywheel power for data center uninterruptible power supply backup For example, starting a generator and ATS load transfer test to the generator, and then moving on to other tasks (or going out to lunch) once the initial load transfer is successful, is poor practice and invites exposure to failure. Virtually any type of testing requires constant supervision. It is also imperative that all staff be apprised and immediately available during any scheduled maintenance or test. In many cases, there is an automated weekly generator exercise routine initiated by the ATS. The need to constantly test and maintain backup generators is well recognized by data center facilities managers. Although this panel is normally untouched during normal operation, it’s recommended that it is visually and thermally inspected on a quarterly or semiannually basis, and no less than annually. At the utility service entrance, the utility hands off the power to the entire facility. The main utility power panel is the first panel in the data center power path. Planning, documentation, training and supervision.Battery plant or energy storage for the UPS.Maintenance bypass panel (MBP) for the UPS.Improper procedures and human error have caused outages, even in tier 3- and 4-level systems.Īssuming there is redundancy available to allow for maintenance, let’s examine these key components and best practices for backup power maintenance. However, redundant equipment is meaningless unless it is properly maintained and tested. The higher the level of power system redundancy (N+1, 2N or S+S, corresponding to tier levels 2-4) the lower the probability that power to the critical load won’t need to be interrupted during scheduled maintenance procedures. Of course, this requires that some level of redundancy be built into the power chain to allow for concurrent operation during maintenance (i.e. Nonetheless, periodic maintenance is required to achieve the projected level of equipment reliability and critical load uptime. This is especially true in today’s economic climate, where every expense is examined to see if can be reduced or eliminated. However, maintenance is sometimes seen as a disruptive, (un)necessary evil and expense by some senior managers.
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