Failure of UPS leading to turbine bearing damage

BHEL India has a good presentation on the importance of maintaining your UPS supply. In some of the incidents mentioned, the turbine bearing temperature increased to 140 Deg C and got damaged due to failure of UPS and auxiliary oil pump not coming in line afterthe turbine tripped. All failure modes of your UPS must be studied and corrective actions implemented. A UPS is a silent watchdog and if it malfunctions when it is required, it can cause a serious process incident. See the presentation in this link.