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Diagnostic apparatus for an electric generator seal oil system

  • US 4,792,911 A
  • Filed: 01/17/1986
  • Issued: 12/20/1988
  • Est. Priority Date: 01/17/1986
  • Status: Expired due to Fees
First Claim
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1. Diagnostic apparatus for a gas-cooled electric generator seal oil system having a plurality of components and wherein the generator includes a shaft which is sealed against escape of gas used for the gas-cooling, by means of spaced-apart gland seals and wherein sealing oil is supplied to the gland seals, comprising:

  • (A) a plurality of sensors connected to various ones of said components of said seal oil system and operable to provide respective output signals, each indicative of the on-line operating condition of an associated component;

    (B) diagnostic computer means responsive to said output signals and operable to provide an output indication indicative of an abnormal condition relative to a particular component based upon the output signal of the sensor directly associated with said particular component as well as at least one output signal of a sensor not directly associated with said particular component.

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