Patent ID: 7913815

Claim:
A system comprising: a hydrogen cooled generator including: a rotor, a casing enclosing the rotor, and a seal assembly between the rotor and the casing, wherein the seal assembly includes seal oil; a manual by-pass system, coupled to the generator, the manual by-pass system including: a set of piping, a drain opening in the set of piping configured to allow the seal oil to drain through the drain opening, a manual valve operatively connected in parallel with the set of piping controlling draining of the seal oil through the drain opening; an automated by-pass system, coupled to the manual by-pass system, the automated by-pass system including: a solenoid valve operatively connected to the set of piping to allow the seal oil to by-pass the manual valve and drain through the drain opening; and a controller to control opening and closing of the solenoid valve.