GB966369A - Leakage detection in a fluid-flow cooling system of an electric machine - Google Patents

Leakage detection in a fluid-flow cooling system of an electric machine

Info

Publication number
GB966369A
GB966369A GB23696/63A GB2369663A GB966369A GB 966369 A GB966369 A GB 966369A GB 23696/63 A GB23696/63 A GB 23696/63A GB 2369663 A GB2369663 A GB 2369663A GB 966369 A GB966369 A GB 966369A
Authority
GB
United Kingdom
Prior art keywords
liquid
gas
electric machine
june
capacitor
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.)
Expired
Application number
GB23696/63A
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.)
Siemens Schuckertwerke AG
Siemens AG
Original Assignee
Siemens Schuckertwerke AG
Siemens AG
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 Siemens Schuckertwerke AG, Siemens AG filed Critical Siemens Schuckertwerke AG
Publication of GB966369A publication Critical patent/GB966369A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
    • G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
    • G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
    • G01M3/18—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators
    • G01M3/186—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables or tubes; for pipe joints or seals; for valves; for welds; for containers, e.g. radiators for containers, e.g. radiators
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M3/00—Investigating fluid-tightness of structures
    • G01M3/40—Investigating fluid-tightness of structures by using electric means, e.g. by observing electric discharges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/343—Testing dynamo-electric machines in operation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

966,369. Determining relative quantities of fluid mixture constituents. SIEMENS-SCHUCKERTWERKE A.G. June 13, 1963 [June 15, 1962], No. 23696/63. Heading G1N. [Also in Divisions F4, H1 and H2] In an installation comprising an electric machine e.g. tube-generator having parts e.g. hollow stator conductors cooled by a liquid e.g. distilled water, and other parts cooled by a gas e.g. hydrogen at a higher pressure and substantially different dielectric constant than the liquid, leakage of the gas into the liquid is detected by a change in capacitance of a capacitor 11 between whose electrodes 12 the liquid is passed. As shown, an adjustable inductor 15 and a H.F. oscillator 16 are in parallel across the capacitor 11 and in resonance when the liquid does not contain gas; when leakeage occurs the circuit becomes non-resonant and this change is detected by an amplifier 21 which supplies a relay 22 having switch contacts. The liquid circuit includes arecooler 4 and a pump 5, and the gas filling is circulated through the rotor 7 and stator laminations 8 by fans 6.
GB23696/63A 1962-06-15 1963-06-13 Leakage detection in a fluid-flow cooling system of an electric machine Expired GB966369A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES79934A DE1167435B (en) 1962-06-15 1962-06-15 Leak monitoring for electrical machines with combined liquid and gas cooling

Publications (1)

Publication Number Publication Date
GB966369A true GB966369A (en) 1964-08-12

Family

ID=7508548

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23696/63A Expired GB966369A (en) 1962-06-15 1963-06-13 Leakage detection in a fluid-flow cooling system of an electric machine

Country Status (3)

Country Link
CH (1) CH409133A (en)
DE (1) DE1167435B (en)
GB (1) GB966369A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131612A (en) * 1982-12-09 1984-06-20 Draloric Electronic Variable capacitor
FR2556471A1 (en) * 1983-12-07 1985-06-14 Teledyne Ind DEVICE FOR DETECTING AIR BUBBLES
GB2406911A (en) * 2003-10-06 2005-04-13 Ricardo Inc Aeration sensing device
CN107560806A (en) * 2017-07-26 2018-01-09 尤煦明 A kind of detecting system and method for the leakage of canned motor pump fluid

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4231713C2 (en) * 1992-09-22 1996-03-21 Siemens Ag Coupling of high-frequency error signals from a liquid-cooled large electrical machine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2131612A (en) * 1982-12-09 1984-06-20 Draloric Electronic Variable capacitor
FR2556471A1 (en) * 1983-12-07 1985-06-14 Teledyne Ind DEVICE FOR DETECTING AIR BUBBLES
GB2151029A (en) * 1983-12-07 1985-07-10 Teledyne Ind Air bubble detector device
GB2406911A (en) * 2003-10-06 2005-04-13 Ricardo Inc Aeration sensing device
GB2406911B (en) * 2003-10-06 2006-10-18 Ricardo Inc Aeration sensing device
CN107560806A (en) * 2017-07-26 2018-01-09 尤煦明 A kind of detecting system and method for the leakage of canned motor pump fluid

Also Published As

Publication number Publication date
DE1167435B (en) 1964-04-09
CH409133A (en) 1966-03-15

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