•The seal oil filters are of magnetic strainer type, the magnetic strainer consists of the filter housing with a filtering cage and the filter cover.
•The filtering cage consists of fine-mesh wire cloth with support strainers on both sides and the magnet bars.
•The seal oil entering the filter must first passes through the magnetic field set up by the magnet bars so that all iron particles contained in the seal oil are attracted by the magnet bars.
•The seal oil then flows through the fine mesh wire cloth which retains all dirt particles containing no iron . 19
The vapor exhauster establishes a vacuum in the generator bearing compartments and seal oil storage tank which prevents the escape of oil vapor from the bearing compartments along the shaft. •
In addition, the vapor exhauster draws off any hydrogen gas which may be admitted into the bearing compartments in the event of a shaft seal failure. •
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