ES422011A1 - Electrical transformer - Google Patents

Electrical transformer

Info

Publication number
ES422011A1
ES422011A1 ES422011A ES422011A ES422011A1 ES 422011 A1 ES422011 A1 ES 422011A1 ES 422011 A ES422011 A ES 422011A ES 422011 A ES422011 A ES 422011A ES 422011 A1 ES422011 A1 ES 422011A1
Authority
ES
Spain
Prior art keywords
pressure
casing
activated
electrical signal
signal circuit
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
ES422011A
Other languages
Spanish (es)
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.)
Westinghouse Electric 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
Publication of ES422011A1 publication Critical patent/ES422011A1/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/08—Means for indicating or recording, e.g. for remote indication
    • G01L19/12—Alarms or signals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16504—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the components employed
    • G01R19/16509—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the components employed using electromagnetic relays, e.g. reed relay
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/40—Structural association with built-in electric component, e.g. fuse
    • H01F27/402—Association of measuring or protective means
    • H01F27/404—Protective devices specially adapted for fluid filled transformers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7837—Direct response valves [i.e., check valve type]
    • Y10T137/7904—Reciprocating valves
    • Y10T137/7922—Spring biased
    • Y10T137/7925—Piston-type valves

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

An electrical transformer comprising a pressure tight casing completely enclosing a magnetic core having windings thereon with a dielectric fluid at least partially filling the casing. Pressure developed within the casing by heating of the windings is sensed by pressure sensitive means. An electrical signal circuit is activated by the pressure sensitive means and indicates the pressure level within the casing of the transformer to a remote observer. When the pressure within the casing exceeds a certain predetermined value, pressure relief means is activated and permits escape of the excess pressure. The electrical signal circuit indicates that the pressure relief means has been activated. The electrical signal circuit will remain activated until manually reset.
ES422011A 1973-01-11 1974-01-04 Electrical transformer Expired ES422011A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00322829A US3816801A (en) 1973-01-11 1973-01-11 Electrical transformer

Publications (1)

Publication Number Publication Date
ES422011A1 true ES422011A1 (en) 1976-04-01

Family

ID=23256616

Family Applications (1)

Application Number Title Priority Date Filing Date
ES422011A Expired ES422011A1 (en) 1973-01-11 1974-01-04 Electrical transformer

Country Status (10)

Country Link
US (1) US3816801A (en)
JP (1) JPS49103126A (en)
AR (1) AR203096A1 (en)
AU (1) AU6390473A (en)
BE (1) BE809629A (en)
BR (1) BR7400073D0 (en)
CA (1) CA983145A (en)
ES (1) ES422011A1 (en)
FR (1) FR2323214A1 (en)
IT (1) IT1006840B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5749371Y2 (en) * 1977-05-16 1982-10-29
US4654806A (en) * 1984-03-30 1987-03-31 Westinghouse Electric Corp. Method and apparatus for monitoring transformers
JPS61142428U (en) * 1985-02-26 1986-09-03
JPS61199029U (en) * 1985-05-30 1986-12-12
FR2684248B1 (en) * 1991-11-22 1997-04-30 Pioch Sa ELECTRONIC APPARATUS FOR MEASURING AND PROTECTING THE OPERATION OF THE OIL TRANSFORMER.
FR2773004B1 (en) * 1997-12-18 2000-01-21 Gec Alsthom T & D Composants S OUTDOOR TRANSFORMING STATION WITH BUILT-IN LIGHT
US6429662B1 (en) * 2000-06-14 2002-08-06 Ifd Corporation Internal fault indicator for power electrical devices
CN102939521B (en) * 2010-06-07 2014-10-15 Ifd内部故障探测器公司 Internal fault indicator for electrical equipment
KR101908548B1 (en) 2015-02-23 2018-10-17 아이에프디 인터널 폴트 디텍터 코포레이션 Integrated fault monitoring apparatus for electrical equipment
CN104833453A (en) * 2015-03-11 2015-08-12 国网浙江海盐县供电公司 On-line pressure monitoring device used for transformer
CN107289187B (en) * 2017-05-11 2019-06-11 郑州赛奥电子股份有限公司 The pressure relief valve that band remotely controls acts Warning Mark resetting apparatus
CN109270447A (en) * 2018-09-13 2019-01-25 广州供电局有限公司 Transformer analog system and setting valve analog measurement method
CN115060413B (en) * 2022-04-15 2024-06-21 广东电网有限责任公司广州供电局 Transformer and gas monitoring and control method thereof

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1670697A (en) * 1926-04-06 1928-05-22 Gen Electric Electrical apparatus
US1775028A (en) * 1929-06-10 1930-09-02 Gen Electric Safety pressure relief and indicating apparatus
US1705715A (en) * 1928-05-29 1929-03-19 Westinghouse Electric & Mfg Co Alarm device
US1751222A (en) * 1928-08-30 1930-03-18 Westinghouse Electric & Mfg Co Compensated gas detector
US1899746A (en) * 1929-04-03 1933-02-28 Westinghouse Electric & Mfg Co Protective system for transformers
US2369363A (en) * 1941-05-05 1945-02-13 Allen Bradley Co Control device for electrical equipment
US2730706A (en) * 1954-10-05 1956-01-10 Mcgraw Electric Co Apparatus for indicating age of insulation
CA550139A (en) * 1954-11-23 1957-12-10 E. Sauer Louis Pressure responsive relays
US2896662A (en) * 1956-09-07 1959-07-28 John V Thomas Multiple distribution valve

Also Published As

Publication number Publication date
CA983145A (en) 1976-02-03
FR2323214A1 (en) 1977-04-01
BE809629A (en) 1974-07-11
JPS49103126A (en) 1974-09-30
BR7400073D0 (en) 1974-11-05
US3816801A (en) 1974-06-11
AR203096A1 (en) 1975-08-14
AU6390473A (en) 1975-06-26
IT1006840B (en) 1976-10-20

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