Work contents for the maintenance of instruments in generator turbine units
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The turbine maintenance is about to begin. What are the main tasks involved in maintaining the instruments? Those of you who know please let me know.
The maintenance of power plants is a very meticulous task; there should be specialized maintenance procedures for each type of equipment. Major repairs and minor repairs are not the same
It depends on the size of your unit, as well as what instruments are included in it – especially those located inside the cover, such as those for measuring displacement, rotational speed, and the proximity switches of the turning gear. It’s necessary to discuss these matters with the equipment specialists. After removing the cover, instrument technicians should first measure and record the installation gaps; these values are needed when the unit is reassembled. Pay special attention to displacement measurements – make sure there are no errors; if the initial value was positive, it shouldn’t become negative after maintenance. There are also tasks like cleaning and tightening the DDV valves or servo valves, among many others. Additionally, it’s necessary to clean and tighten the DEH cabinet, as well as the ETS system cabinets and DCS system cabinets. First, it’s important to determine what kind of unit you have and what components it includes.