Mechanical calibration of turbine over speed trip
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United States of America Patent
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Aug 24, 2021
Grant Date -
Jul 30, 2020
app pub date -
Jan 24, 2019
filing date -
Jan 24, 2019
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Abstract
Techniques for mechanical calibration of turbine overspeed trip are described. An electric motor rotates a rotational electric motor shaft coupled to an over speed trip collar of a rotational shaft of an electric machine at multiple rotational speeds. The over speed trip collar is configured to trip in response to the rotational electric motor shaft being rotated at a particular rotational speed. The over speed trip collar triggers an alarm when a rotational speed of the multiple rotational speeds substantially matches the particular rotational speed. The alarm provides a signal in response to triggering the alarm.
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