Reports until 09:24, Thursday 01 May 2025
LHO VE
jordan.vanosky@LIGO.ORG - posted 09:24, Thursday 01 May 2025 (84220)
Morning Purge Air Checks 5-1-25 & Pump Checks

Morning dry air skid checks, water pump, kobelco, drying towers all nominal.

Dew point measurement at HAM1 , approx. -42C

 

The turbo on the YBM tripped as a result of the power glitch reported last night see alog 84217, leading to a slight pressure rise in the corner.

I closed the main gate valve at that turbo and restarted the scroll pump/backing turbo and main turbo. Once the turbo reached full speed and the intake pressure was lower than the main volume pressure I verified trip setpoints and re-opened the gate valve..

This was the only turbo station that tripped. Output tube/XBM & HAM6 turbos were all nominal.

Images attached to this report