IT1006840B - ELECTRIC TRANSFORMER IN OIL WITH INTERNAL PRESSURE INDICATOR - Google Patents

ELECTRIC TRANSFORMER IN OIL WITH INTERNAL PRESSURE INDICATOR

Info

Publication number
IT1006840B
IT1006840B IT19258/74A IT1925874A IT1006840B IT 1006840 B IT1006840 B IT 1006840B IT 19258/74 A IT19258/74 A IT 19258/74A IT 1925874 A IT1925874 A IT 1925874A IT 1006840 B IT1006840 B IT 1006840B
Authority
IT
Italy
Prior art keywords
oil
internal pressure
pressure indicator
electric transformer
transformer
Prior art date
Application number
IT19258/74A
Other languages
Italian (it)
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
Application granted granted Critical
Publication of IT1006840B publication Critical patent/IT1006840B/en

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
    • H01F2027/404—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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Housings And Mounting Of Transformers (AREA)
  • Measuring Fluid Pressure (AREA)
IT19258/74A 1973-01-11 1974-01-10 ELECTRIC TRANSFORMER IN OIL WITH INTERNAL PRESSURE INDICATOR IT1006840B (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
IT1006840B true IT1006840B (en) 1976-10-20

Family

ID=23256616

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19258/74A IT1006840B (en) 1973-01-11 1974-01-10 ELECTRIC TRANSFORMER IN OIL WITH INTERNAL PRESSURE INDICATOR

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 (12)

* 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
BR112012030676B1 (en) * 2010-06-07 2021-02-17 Ifd Internal Fault Detector Corp fault indicator to indicate the occurrence of a rapid pressure surge, and electrical device
US10605849B2 (en) 2015-02-23 2020-03-31 Ifd Internal Fault Detector Corp. 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

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
ES422011A1 (en) 1976-04-01
AU6390473A (en) 1975-06-26
US3816801A (en) 1974-06-11
FR2323214A1 (en) 1977-04-01
CA983145A (en) 1976-02-03
JPS49103126A (en) 1974-09-30
BE809629A (en) 1974-07-11
BR7400073D0 (en) 1974-11-05
AR203096A1 (en) 1975-08-14

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