Penanganan Lonjakan Vibrasi pada Rotor Elektrik Turbin di PLTU Gresik
I will put the dimension here
Abstract
This analysis will discuss how to handle vibrations in the Turbine Rotor. The measuring instrument used is Vibration Analysis test with Prov. 2140 type which measured amplitude, time and frequency domain of vibration signal. The results obtained in this study, firstly, the measurement vibration of rotor at PT PJB Gresik found the highest amplitude of vibration was 59,6 μm at 3000 rpm. In this condition, the rotor is in very good condition as per standard vibration in ISO 7919-2 stated 80 μm at 3000 rpm. However in the next measurement, there is an dramatically increase of amplitude in each vibration measurement. The top amplitude of vibration reached at 115 μm at 3000 rpm and shown a symtom of damage on the rotor as a result of vibration. In solving the problem this time we use the method Root couse analysis (RCA). The results of this research found that there was a short turn to turn on the rotor windings and the closed slot liner holes that caused electric vibrations and needed to be repaired to eliminate vibration disturbances. After repairing the vibration, it decreased which initially 115 μm to 33.5 μm at 3000 Rpm, it is still on the range of the permitted safe zone of ISO standard 7919−2.
References
Enda Permana,1 januari 2012,”Analisa dan solusi penanganan getaran pada turbinpembangkit listrik di PLTP Kamojang unit 1 Darajat”,Portal Jurnal Universitas Pendidikan Indonesia.
Eko Setiono,Jefri Syanni edisi 1, 2013, PLN University book 1 Vibration
ISO 10814,2009, Mechanical vibration Susceptibility and sensitivity of machines to unbalance.
IB.P.P.Mahartana dan Harus Laksana Guntur, 2017,Jurnal Teknik ITS Vol 6 No.1. “Pemodelan dan Analisis Pengaruh Kenaikan Putaran Kerja Terhadap Respon Dinamis, Kasus UnbalanceRotor Steam TurbineUnit 1 PLTU Amurang 2x25MW” Laboratorium Vibrasi dan Sistem Dinamis Teknik Mesin, Fakultas Teknologi Industri, Institut Teknologi Sepuluh Nopember (ITS).
Shenglun Zhanga,b, Yu Xingc,a, Hua Xua,b,⇑, Shiyuan Peia,b, Lei Zhanga,b, 1 November 2019,Elsevier. ”An experimental study on vibration suppression of adjustableelliptical journal bearing-rotor system in various vibrationstates” School of Mechanical Engineering, Xi’an Jiaotong University, Xi’an 710049, Shaanxi, PR China.
Surojit Poddar, N. Tandon, Tribology International 134, 2019, Elsevier. “Detection of particle contamination in journal bearing using acousticemission and vibration monitoring techniques” ITMMEC, Indian Institute of Technology Delhi, New Delhi, 110016, India.
Eko Setiono,Jefri Syanni edisi 1, 2013, PLN University book 2 Vibration
Eko Setiono,Jefri Syanni edisi 1, 2013, PLN University book 3 Vibration
Berry, James E. Copyright 1993; Technical Associates of Charlotte, Inc.; Charlotte, NC.; "Vibration Signature Analysis I”.
Steven W.Smith. 1999 by California Technical Publishing;The Scientist and Engineer’s Guide to Digital Signal Processing.
ISO 2954:1975, Mechanical Vibration of rotating and reciprocating machinery Requirements for instruments formeasuring Vibration severity.
IHS Licensee Fluor Corporation/2110503105, ISO 108161, 2003 Mechanical vibration Evaluation of machine vibration by measurements on non−rotating parts
Technical Committee ISO/TC 108,2001, ISO 79194, Mechanical vibration Evaluation of machine vibration by measurements on rotating shaft part 4: Gas turbine sets.
Arikunto, Suharsimi. 2010, Prosedur Penelitian Suatu pendekatan Praktek. Jakarta: Rineka Cipta
Jack Peters,2017, Beginning Vibration Analysis With Basic Fundamentals.
Smeisme, A., Saklawi, R., and Yassine, w., 2008, “A Predictive Maintenance Tool: Vibration Analysis to Determine the Condition of Electric Machines”, ARISER Vol. 4 No. 3 (2008) 103-117, Electrical and Computer Department, American University of Beirut, LEBANON, 23 June 2008.
Prakash, S., Puri, V, 2006, “Foundation for Vibrating Machines”, the Journal of Structural Engineering, SERC, Madras, India April-May
Jayaswal, P, Wadhwani, A., and. Mulchandani, B. Received 29 October 2007; Accepted 21 January 2008 “Machine Fault Signature Analysis”.
Oliquino, R., Islam, S., and Eren, H., 2002, “Effects of Types of Faults on Generator Vibration Signatures”, School of Electrical and Computer Engineering Curtin University of Technology, Western Australia. [Online]. Available: www.itee.uq.edu.au/~aupec/aupec03/.../008%20Oliquino%20paper.pdf..
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