Dear,
I want to share an issue/observation last week stop one gas turbine frame 9e.03 when it reached turning gear Bearing lift pump comes in operation at 128rpm. Turning normally engage at 130 rpm till 15 mint turning gear was running normal and torque angle was 43 degree
suddenly Bearing lift oil pump stop but turning was continue we checked all alarm. at the time RPM was 150rpm means 5% speed of rotation after bearing pump stop alarm was appeared pump stop and low pressure alarm on list. according to trend we put speed % , pump running status, 20tu torque converter filling and drain valve. all parameters found normal I want to know what could be the reason of stopping Lifting pump while turning is in operation. Normally Pump only stop when pump lost due to pressure lost. kindly share your opinion about this issue if ever you have saw. attached graph for reference
I want to share an issue/observation last week stop one gas turbine frame 9e.03 when it reached turning gear Bearing lift pump comes in operation at 128rpm. Turning normally engage at 130 rpm till 15 mint turning gear was running normal and torque angle was 43 degree
suddenly Bearing lift oil pump stop but turning was continue we checked all alarm. at the time RPM was 150rpm means 5% speed of rotation after bearing pump stop alarm was appeared pump stop and low pressure alarm on list. according to trend we put speed % , pump running status, 20tu torque converter filling and drain valve. all parameters found normal I want to know what could be the reason of stopping Lifting pump while turning is in operation. Normally Pump only stop when pump lost due to pressure lost. kindly share your opinion about this issue if ever you have saw. attached graph for reference
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