fan unsatisfactory report-vibration (igh)

1. JPL (Unit#1 FGD AREA)
UNACCEPTABLE REPORT
Machine: FGD BOOSTER DIFFUSER OUTLET SEAL AIR FAN-B Visited On: 25.07.18
Notification number:- 7200033941
EQUIPMENT DETAILS
MOTOR DETAILS
Motor RPM:2905 & KW:
Rated Current: Amps
Overall VIBRATION Trend:
0
20
40
08.06.18 25.07.18
Vib
Vib
RMS Velocity in mm/sec
Limit As Per
ISO 10816
Direction
08.06.18 25.07.18
Motor NDE
>7.1MM/S
4.5 TO 7.1
MM/S
2.8 TO 4.5
MM/S
0.8 TO 2.8
MM/S
H
2.6 9.3
V
3.7 15.1
A
3.6 32.6
Motor DE
H
2.4 9.2
V
1.7 19.4
A
3.0 21.5

2. Please see the below Spectrums:
Motor NDE Horizontal:
Motor NDE Vertical
Health Status
UNACCEPTABLE
Observations & Analysis:
 FFT Spectrum indicating dominant peaks 1X RPM and along with its harmonics at motor both bearings.
 Still high vibrations are observed in Motor both vertical, axial directions.
Suggested Action Plans:
 Check the soft foot & motor base leveling.
 Inspect the impeller condition
 Check impeller fitment.

3. Motor NDE Axial:
Motor DE Horizontal:

4. Motor DE Vertical
Motor DE Axial: