GB1524025A - Overheating detector in gas-cooled electric machine - Google Patents

Overheating detector in gas-cooled electric machine

Info

Publication number
GB1524025A
GB1524025A GB24493/74A GB2449374A GB1524025A GB 1524025 A GB1524025 A GB 1524025A GB 24493/74 A GB24493/74 A GB 24493/74A GB 2449374 A GB2449374 A GB 2449374A GB 1524025 A GB1524025 A GB 1524025A
Authority
GB
United Kingdom
Prior art keywords
detectors
gas
overheating
electric machine
cooled electric
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
GB24493/74A
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.)
REYROLLE PARSONS AUTOMATION LT
Original Assignee
REYROLLE PARSONS AUTOMATION LT
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 REYROLLE PARSONS AUTOMATION LT filed Critical REYROLLE PARSONS AUTOMATION LT
Priority to GB24493/74A priority Critical patent/GB1524025A/en
Publication of GB1524025A publication Critical patent/GB1524025A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H5/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection
    • H02H5/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays
    • H02H5/086—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal non-electric working conditions with or without subsequent reconnection responsive to abnormal fluid pressure, liquid level or liquid displacement, e.g. Buchholz relays of cooling or lubricating fluids
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/25—Devices for sensing temperature, or actuated thereby

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)

Abstract

1524025 Gas detecting arrangements REYROLLE PARSONS AUTOMATION Ltd 19 Aug 1975 [3 June 1974] 24493/74 Heading G1N [ Also in Division H2] In an overheating detection arrangement in a gascooled electrical machine 10, two detectors 13, 15 each receive cooling gas from the machine and generate signals representing the condition of the gas received e.g. representing the smoke content; the detectors are arranged so that only one of them receives gas in a changed condition if overheating occurs; and a comparator 16 generates an output alarm signal when the difference between the signals from the detectors 13, 15 exceeds a predetermined level. In the arrangement shown, smoke is prevented from reaching detector 15 by the action of a filter 14. The detectors may be ionization type detectors.
GB24493/74A 1975-08-19 1975-08-19 Overheating detector in gas-cooled electric machine Expired GB1524025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB24493/74A GB1524025A (en) 1975-08-19 1975-08-19 Overheating detector in gas-cooled electric machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB24493/74A GB1524025A (en) 1975-08-19 1975-08-19 Overheating detector in gas-cooled electric machine

Publications (1)

Publication Number Publication Date
GB1524025A true GB1524025A (en) 1978-09-06

Family

ID=10212535

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24493/74A Expired GB1524025A (en) 1975-08-19 1975-08-19 Overheating detector in gas-cooled electric machine

Country Status (1)

Country Link
GB (1) GB1524025A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3035083A1 (en) * 1979-09-17 1981-03-19 Hitachi, Ltd., Tokyo METHOD AND DEVICE FOR DETERMINING OVERHEATING OF AN ELECTRICAL MACHINE
EP0209364A2 (en) * 1985-07-16 1987-01-21 Westinghouse Electric Corporation Generator stator winding diagnostic system
EP0294591A1 (en) * 1987-06-09 1988-12-14 Siemens Aktiengesellschaft Measuring of the integral temperature in electrical machines

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3035083A1 (en) * 1979-09-17 1981-03-19 Hitachi, Ltd., Tokyo METHOD AND DEVICE FOR DETERMINING OVERHEATING OF AN ELECTRICAL MACHINE
EP0209364A2 (en) * 1985-07-16 1987-01-21 Westinghouse Electric Corporation Generator stator winding diagnostic system
EP0209364A3 (en) * 1985-07-16 1987-08-26 Westinghouse Electric Corporation Generator stator winding diagnostic system
EP0294591A1 (en) * 1987-06-09 1988-12-14 Siemens Aktiengesellschaft Measuring of the integral temperature in electrical machines

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19950818