American Journal of Mechanical and Industrial Engineering 2016; 1(3): 50-57 http://www.sciencepublishinggroup.com/j/ajmie doi: 10.11648/j.ajmie.20160103.13 Evaluation and Monitoring of Condition of Turbo Generator on the Example of Thermal Power Plant Ugljevik 1x300 MW Zdravko N. Milovanovic 1, * , Aleksandar N. Milasinovic 1 , Darko M. Knezevic 1 , Jovan B. Skundric 1 , Svetlana R. Dumonjic-Milovanovic 2 1 University of Banja Luka, Faculty of Mechanical Engineering, Banja Luka, Republic of Srpska, Bosnia and Herzegovina 2 Partner Engineering Ltd., Banja Luka, Republic of Srpska, Bosnia and Herzegovina Email address: zdravko.milovanovic@unibl.rs (Z. N. Milovanovic), milasinovica@gmail.com (A. N. Milasinovic), darko.knezevic@unibl.rs (D. M. Knezevic), svetlanadm@ymail.com (S. R. Dumonjic-Milovanovic) *Corresponding author To cite this article: Zdravko N. Milovanovic, Aleksandar N. Milasinovic, Darko M. Knezevic, Jovan B. Skundric, Svetlana R. Dumonjic-Milovanovic. Evaluation and Monitoring of Condition of Turbo Generator on the Example of Thermal Power Plant Ugljevik 1x300 MW. American Journal of Mechanical and Industrial Engineering. Vol. 1, No. 3, 2016, pp. 50-57. doi: 10.11648/j.ajmie.20160103.13 Received: September 15, 2016; Accepted: September 26, 2016; Published: October 15, 2016 Abstract: The every complex technical system brings high potential risk of possible failures and breakdowns which can seriously endanger surrounding environment. Causes of harmful events are of stochastic nature because they depend upon number of both distinct and accidental factors. Preventive measures can in certain way be used to plan activities for controlling and possible respond regarding that group of factors. Methods of monitoring which are in use are in the same time used as a techniques for evaluation of incurred damages together with identifying its major causes (root causes). Defining system for periodic analyzing and remote monitoring of relevant parameters of turbo generators also include adequate technique for collecting, storing and analyzing significant amount of data. Organization of the data has impact on quality of evaluation of present state and also on planning of stoppages of power plant and predicting of remaining life span of the machine. This type of management has increase in availability and reliability of machines as a result. Inside this paper, the presentation of the algorithm of two year lasting monitoring of turbo generator in TPP Ugljevik of installed power of 300 MW, together with supporting results of conducted diagnostics is given. Keywords: Turbo Generator, Maintenance, Diagnostics, Monitoring 1. Introduction Diagnostics, respectively evaluation of state of elements of the facility together with tracking the progression of its aging is very complex, responsible and expensive task which demands educated personnel and modern diagnostic equipment. Diagnostic equipment which exists on the market is filled with diversity and methods used for diagnostic purposes are not generally accepted. Results of diagnostic inspections usually do not give complete answers so it is often reduced on just monitoring changes in trend of diagnostic magnitudes. Consequently, experience becomes unavoidable and immeasurable element of diagnostic. Experience itself is of course only possible to be acquired through the work and usage of diagnostic equipment, but it is also necessary to keep in mind the price of experience acquirement in relation to a risk of investment in testing equipment. Development of diagnostic methods is intense regarding both field and laboratory methods but efforts in providing more and more terrain application methods is highly present. By developing new technologies and through the application of modern equipment and tools for monitoring of present state and diagnostic of primary gear, expenses of routine maintenance can be decreased in way to make possible to recognize priorities of intervention maintenance. Methodology of maintenance regarding reliability also includes analysis of failure in process of decision making when maintenance is in question. Special problem in early stage of development of maintenance was analysis of reliability of complex energetic technical systems. Development of aero-industry and introducing certain parameters tracking during the operation (condition monitoring) was the basis of maintenance of