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AssigneeWestinghouse Electric Corp.
InventorsAvelino J. Gonzalez, Kurt H. Steinebronn, Michael J. Rasinski, Owen R. Snuttjer
Estimating the term…
A conventional hydrogen-cooled electric generator having gland seals prevents the escape of hydrogen gas from the generator housing. A conventional seal oil system provides the gland seals with the necessary oil so as to perform their sealing function. Diagnostic apparatus is provided for the arrangement and includes a plurality of sensors which provide output signals indicative of certain parameters such as temperatures and pressures throughout the seal oil system. The output signals are provided to a diagnostic computer which, in a preferred embodiment, utilizes an expert system diagnostic routine for examining the sensor signals and deriving certain conclusions relative to the operating condition of the seal oil system. Various conclusions are additionally reached using operator-entered information from off-line sensors.
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:
Diagnostic apparatus for a seal oil system associated with a gas-cooled electric generator having a shaft, and which includes spaced-apart gland seals around the generator shaft to prevent escape of gas used for the gas-cooling, and which includes means for supplying sealing oil to, and recovering sealing oil from, the seals, comprising:
Diagnostic apparatus for a seal oil system associated with a gas-cooled electric generator having a shaft, and which includes spaced-apart gland seals around the generator shaft to prevent escape of gas used for the gas-cooling, and which includes means for supplying sealing oil to, and recovering sealing oil from, the seals, comprising:
Diagnostic apparatus for a multi-component gas-cooled electric generator seal oil system 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:
Diagnostic apparatus for a seal oil system associated with a gas-cooled electric generator having a shaft and including spaced apart gland seals around the shaft and wherein oil for sealing against cooling gas leakage is supplied by a pump in an air side system to an outer circumferential groove and by a pump in a gas side system to an inner circumferential groove in the gland seals, and returned to said pumps via respective fluid paths, the fluid path in said gas side system including a regulator tank, comprising:
Diagnostic apparatus for a seal oil system associated with a gas-cooled electric generator having a shaft and including first and second spaced apart gland seals around the shaft and wherein oil for sealing against cooling gas leakage is supplied by a pump in an air side system to an outer circumferential groove and by a pump in a gas side system to an inner circumferential groove in the gland seals, and returned to said pumps via respective fluid paths, the fluid path in said gas side system including a regulator tank, comprising:
Diagnostic apparatus for a seal oil system associated with a gas-cooled electric generator having a shaft and including spaced apart gland seals around the shaft and wherein oil for sealing against cooling gas leakage is supplied by a pump in an air side system to an outer circumferential groove and by a pump in a gas side system to an inner circumferential groove in the gland seals, and returned to said pumps via respective fluid paths, the fluid path in said gas side system including a regulator tank in which said oil from said gas side system accumulates and having an oil line to which is connected a normally closed drain valve which will open to drain oil into said air side system when the oil level in said regulator tank gets too high and another oil line to which is connected a normally closed feed valve which will open to receive oil from said air side system when the oil level in said regulator tank gets too low comprising:
Diagnostic apparatus for a seal oil system associated with a gas-cooled electric generator having a shaft and including spaced apart gland seals around the shaft and wherein oil for sealing against cooling gas leakage is supplied by a pump in an air side system to an outer circumferential groove and by a pump in a gas side system to an inner circumferential groove in the gland seals, and returned to said pumps via respective fluid paths, the fluid paths in said air and gas side systems including respective oil coolers each having an inlet and outlet for circulation of cooling water, comprising:
Dependencies are inferred from the claim text.