Casing Gen DE axial recorded at different speeds and at load

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Presentation transcript:

Casing Gen DE axial recorded at different speeds and at load At 1450 rpm of generator 2X decreased and 3X started increasing, At 1500 rpm 3X: 4.7 mm/sec 2 MW load 3X: 8.15 mm/sec 5 MW load 3X: 8.61 mm/sec 10 MW load 3X: 12.6 mm/sec This phenomena observed after providing correction mass on the Gen DE side 3X Turbine speed 1X 4X 2X 10 MW 5 MW 2 MW 1500 rpm 1450 rpm 1400 rpm 1350 rpm 1300 rpm 1250 rpm

Horizontal Vertical Axial Casing vibrations recorded on GB LSS DE at 10 MW load Horizontal Turbine speed 5775 rpm 3X Vertical Axial

Horizontal Vertical Axial Casing vibrations recorded on GB LSS NDE at 10 MW load Horizontal Turbine speed 5775 rpm 3X Vertical Axial