ASME PTC 20.2 PDF
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Overspeed Trip Systems of Steam Turbine Generator Units
Description
This Code provides guiding principles and specifications for determining overall system performance of overspeed trip systems for steam turbine-generator units.
Standard no longer american national asme approved march 10, 2003. available historical reference only. code applicable steam turbine generator units 500 kw larger provides: (a) recommended specifications performance overspeed trip systems subject modifications mutual agreement parties concerned and (b) procedures acceptance tests determine systems. purposes are: (a)to establish guiding principles will apply equipment covered code. (b) test characteristics systems: these include (1) setting (2) short term deviation speed. (3) long (4) signal transmission delay time. (5) emergency stop valve(s) closing provides determining overall system turbine-generator units.
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