Gas Turbine frame 9E lube oil header pressure reduced from 4.3 bars to 3.6 bars after shutdown.
Before shutdown, lube oil header pressure was around 4.3 bars and plant was shutdown for HRSG maintenance activities. Only hydraulic oil filters on valves inspection was carried out during outage on gas turbine.
Gas turbine was put on turning and header pressure was reduced to 3.6bars.
Please provide any online checks or root cause for such reduced header pressure.
Before shutdown, lube oil header pressure was around 4.3 bars and plant was shutdown for HRSG maintenance activities. Only hydraulic oil filters on valves inspection was carried out during outage on gas turbine.
Gas turbine was put on turning and header pressure was reduced to 3.6bars.
Please provide any online checks or root cause for such reduced header pressure.