KESC BQPS II - Maintenance · KESC BQPS II Reported By: Rao Muhammad Shahbaz Manager Condition Monitoring Date: 17-Jan-2013 Steam Turbine Vibration Status Report Activity Performed:
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KESC BQPS II
Reported By: Rao Muhammad Shahbaz
Manager Condition Monitoring
Date: 17-Jan-2013
Steam Turbine Vibration Status Report
Activity Performed: Dynamic Balancing
Description:
At bearing #4, shaft vibration reading from X-probe was observed 114 microns. After considering the
dynamic balancing as root cause elimination activity, it was performed by HE Engineer with the aid of
ADRE system.
Balancing Activity:
Balancing activity was performed on LP rotor. Selected planes were near bearing no. 3 & 4. Given
below was the status:
Speed= 3000 r/min
Reference Run (On which Dynamic Balancing was decided):
After addition of correction weight, there was not much change in vibration. So additional weight was
removed and now on these two bearings, 1X status is as follows:
On the next page, unfiltered orbits, polar plots, shaft center line plot & bar graphs of all 6 bearings are
attached.
Bearing 3 (1X)
X-probe= 21µm @ 113˚
Y-probe= 35µm @ 254˚
Bearing 4 (1X)
X-probe= 88µm @ 141˚
Y-probe= 37µm @ 271˚
Bearing 3 (1X)
X-probe= 45µm @ 161˚
Y-probe= 53µm @ 270˚
Bearing 4 (1X)
X-probe= 100µm @ 118˚
Y-probe= 46µm @ 237˚
KESC BQPS II
Reported By: Rao Muhammad Shahbaz
Manager Condition Monitoring
Current Bar Graph of all 6 Bearings:
KESC BQPS II
Reported By: Rao Muhammad Shahbaz
Manager Condition Monitoring
Run Up of Steam Turbine:
Bearing #1:
Polar Plot
Shaft Center Line
KESC BQPS II
Reported By: Rao Muhammad Shahbaz
Manager Condition Monitoring
Waterfall
Bearing #2:
Polar Plot
KESC BQPS II
Reported By: Rao Muhammad Shahbaz
Manager Condition Monitoring
Shaft center line
Waterfall
KESC BQPS II
Reported By: Rao Muhammad Shahbaz
Manager Condition Monitoring
Bearing #3:
Polar Plot
Shaft Center line
KESC BQPS II
Reported By: Rao Muhammad Shahbaz
Manager Condition Monitoring
Waterfall
Bearing #4:
Polar Plot
KESC BQPS II
Reported By: Rao Muhammad Shahbaz
Manager Condition Monitoring
Shaft Center Line
Waterfall
KESC BQPS II
Reported By: Rao Muhammad Shahbaz
Manager Condition Monitoring
Bearing # 5:
Polar Plot
Shaft Center Line
KESC BQPS II
Reported By: Rao Muhammad Shahbaz
Manager Condition Monitoring
Waterfall
Bearing #6:
Polar Plot
KESC BQPS II
Reported By: Rao Muhammad Shahbaz
Manager Condition Monitoring
Shaft Center Line
Waterfall
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