Page 145 - Steam Turbines Design, Applications, and Rerating
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126   Chapter Seven






















































            Figure 7.1 Lubricating oil system for an industrial steam turbine. (Asea Brown-
            Boveri, Baden, Switzerland)


              of oil. In the event of the auxiliary pump failing, it ensures that the
              turboset receives sufficient oil while running down.

              To lessen the breakaway torque in the bearings of the driven
            machine, a reciprocating high-pressure pump is sometimes provided.
            On large turbines the bearings are also fed with jacking oil. A jacking
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