FR2408238A1 - Generator seal oil supply system - has hydraulic accumulator maintaining pressure to allow backup pump to cut in - Google Patents

Generator seal oil supply system - has hydraulic accumulator maintaining pressure to allow backup pump to cut in

Info

Publication number
FR2408238A1
FR2408238A1 FR7733191A FR7733191A FR2408238A1 FR 2408238 A1 FR2408238 A1 FR 2408238A1 FR 7733191 A FR7733191 A FR 7733191A FR 7733191 A FR7733191 A FR 7733191A FR 2408238 A1 FR2408238 A1 FR 2408238A1
Authority
FR
France
Prior art keywords
pump
oil
hydraulic accumulator
cut
supply system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7733191A
Other languages
French (fr)
Other versions
FR2408238B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CBS Corp
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Priority to FR7733191A priority Critical patent/FR2408238A1/en
Publication of FR2408238A1 publication Critical patent/FR2408238A1/en
Application granted granted Critical
Publication of FR2408238B1 publication Critical patent/FR2408238B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/124—Sealing of shafts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/24—Protection against failure of cooling arrangements, e.g. due to loss of cooling medium or due to interruption of the circulation of cooling medium

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)

Abstract

A system supplying oil to the seal plates of a generator. Seal oil is provided by a primary pump and a secondary pump which acts as a backup for the primary pump. Under normal operating conditions a portion of the seal oil supplied by either pump is diverted through a bypass line so that only a predetermined amount of oil actually flows to the seal plates. When the flow rate through the bypass line falls below a specific amount, the secondary pump is activated. If, at any time, the oil pressure supplied to the seal plates falls below a predetermined amount, then a hydraulic accumulator maintains the necessary pressure and flow rate for a relatively short period of time required to bring the backup pump to its proper pressure and flow rate.
FR7733191A 1977-11-04 1977-11-04 Generator seal oil supply system - has hydraulic accumulator maintaining pressure to allow backup pump to cut in Granted FR2408238A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7733191A FR2408238A1 (en) 1977-11-04 1977-11-04 Generator seal oil supply system - has hydraulic accumulator maintaining pressure to allow backup pump to cut in

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7733191A FR2408238A1 (en) 1977-11-04 1977-11-04 Generator seal oil supply system - has hydraulic accumulator maintaining pressure to allow backup pump to cut in

Publications (2)

Publication Number Publication Date
FR2408238A1 true FR2408238A1 (en) 1979-06-01
FR2408238B1 FR2408238B1 (en) 1983-07-29

Family

ID=9197267

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7733191A Granted FR2408238A1 (en) 1977-11-04 1977-11-04 Generator seal oil supply system - has hydraulic accumulator maintaining pressure to allow backup pump to cut in

Country Status (1)

Country Link
FR (1) FR2408238A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE949758C (en) * 1943-05-08 1956-09-27 Siemens Ag Fluid seal for shafts passed through the housing of hydrogen-cooled electrical machines

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE949758C (en) * 1943-05-08 1956-09-27 Siemens Ag Fluid seal for shafts passed through the housing of hydrogen-cooled electrical machines

Also Published As

Publication number Publication date
FR2408238B1 (en) 1983-07-29

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Legal Events

Date Code Title Description
ST Notification of lapse