Vibration Monitoring Experiment for Annual Rotor Balance and Shaft Alignment of Turbo Generators for Healthy Operating Conditions

Research Article

Vibration Monitoring Experiment for Annual Rotor Balance and Shaft Alignment of Turbo Generators for Healthy Operating Conditions

Bernard .A. Adaramola

Corresponding Author : Bernard .A. Adaramola

Mechanical and Mechatronics Department, Afe Babalola University, P.M.B. 5454, Ado-Ekiti, Nigeria.

Email ID : adaramolaba@abuad.edu.ng

Received : 2018-08-27 Accepted : 2018-10-15 Published : 2018-10-15

Abstract : Vibration monitoring improves the safety and performance of turbo generators, reduces the risk of machine damage, lessens unscheduled power outages and enhances continuous electricity generation. Vibration analysis was carried out to prevent shaft misalignment and unbalanced conditions which usually cause bearing defects. Shaft's radial and thrust (axial) positions were measured with proximity probes TM0105 (5mm); TM0110 (8 mm) and TM0180 (11mm) for shaft dynamic motion at normal pressure and high pressure respectively. The absolute vibration of machine case structure and signal output speed during normal machine operating conditions, start-up and shut down was measured with accelerometer sensor TMO 793 and velocity sensor TMO 793. Transducers TM0 602 was employed to produce voltage pulse for each turn of the shaft relative speed and serves as a phase reference for measuring vibration phase lag angle to form an over speed protection system. The deviation of the rotor physical centre and the theoretical centre was determined with PT2060/10 proximity module. The eccentricity measured valves were used to set shaft alignment for a good combination of slow rolling and heating effect of the rotor to stator contact.

Keywords : Eccentricity, Proximity probes, Shaft speed, Transducers, Vibration amplitude

Citation : Bernard .A. Adaramolaet al. (2018). Vibration Monitoring Experiment for Annual Rotor Balance and Shaft Alignment of Turbo Generators for Healthy Operating Conditions, J. of Advancement in Engineering and Technology, V7I1.04. DOI : 10.5281/zenodo.1467565

Copyright : © 2018 Bernard .A. Adaramolaet. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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