Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
January 14, 2020
Patent Application Number
15643359
Date Filed
July 6, 2017
Patent Citations Received
Patent Primary Examiner
Patent abstract
A turbine and the method of operating the turbine when taking the turbine off-line includes transmitting power to a No. 1 shaft via a main motor to turn the turbine at an original turning speed, wherein the No. 1 shaft drives a No. 2 shaft; reducing a speed of the turbine; and when the speed of the turbine is reduced to a predetermined RPM, switching power transmission to the turbine from the No. 1 shaft to a No. 2 shaft, wherein the No. 2 shaft is driven by an auxiliary motor, and the No. 2 shaft drives the No. 1 shaft to turn the turbine at a slow turning speed less than the original turning speed.
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