GB771744A - Improvements in or relating to bushings for electrical apparatus - Google Patents

Improvements in or relating to bushings for electrical apparatus

Info

Publication number
GB771744A
GB771744A GB23913/55A GB2391355A GB771744A GB 771744 A GB771744 A GB 771744A GB 23913/55 A GB23913/55 A GB 23913/55A GB 2391355 A GB2391355 A GB 2391355A GB 771744 A GB771744 A GB 771744A
Authority
GB
United Kingdom
Prior art keywords
conductor
housing
conductors
bushing
housings
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
GB23913/55A
Inventor
Eugene C Whitney
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
Publication of GB771744A publication Critical patent/GB771744A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F38/00—Adaptations of transformers or inductances for specific applications or functions
    • H01F38/20—Instruments transformers
    • H01F38/22—Instruments transformers for single phase ac
    • H01F38/28—Current transformers
    • H01F38/30—Constructions
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B17/00—Insulators or insulating bodies characterised by their form
    • H01B17/26—Lead-in insulators; Lead-through insulators
    • H01B17/28—Capacitor type
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S174/00—Electricity: conductors and insulators
    • Y10S174/01—Anti-tracking
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S174/00—Electricity: conductors and insulators
    • Y10S174/10—Bushing with current transformers

Abstract

771,744. Transformers. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Aug. 19, 1955[Aug. 31, 1.954], No. 23913/55. Class 38 (2). [Also in Group XXXVI] A multiple conductor lead-in bushing or terminal for a transformer comprises an inner conductor 15 and one or more outer tubular conductors of graduated lengths (one in the embodiment shown), the inner conductor being longer than the outer conductor 16, an annular terminal flange 15c, 16c at one end of each of the conductors 15, 16 respectively, a flanged cap member 18 at the other end of conductor 15, an annular terminal flange 22 at the other end of conductor 16, a rigid tubular insulating housing 23 surrounding conductor 16, separate auxiliary insulating housings 23a, 23b surrounding each projecting end of conductor 15 and means for sealing each end of each housing to its adjacent terminal flange, the sealing means at least at one end of each of the housings including a compressible gasket 25 and the sealing means of housing 23 including an axially - expansible, spring - pressed hermetic sealing element 26, (see Group XXXVI). The conductors are separated by insulation 19 and the spaces 24, 24a, 24b within the housings are filled with oil. A bushing-type current transformer 36 may be mounted on housing 23 to provide differential relay protection to detect faults within casing 7. Since the two-conductor concentric bushing is normally surrounded by zero flux, the transformer 36 normally develops no secondary voltage, but will respond to conditions causing the two currents to be no longer both equal and in phase-opposition.
GB23913/55A 1954-08-31 1955-08-19 Improvements in or relating to bushings for electrical apparatus Expired GB771744A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US453353A US2809358A (en) 1954-08-31 1954-08-31 Terminal concentric bushing with current transformer

Publications (1)

Publication Number Publication Date
GB771744A true GB771744A (en) 1957-04-03

Family

ID=23800244

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23913/55A Expired GB771744A (en) 1954-08-31 1955-08-19 Improvements in or relating to bushings for electrical apparatus

Country Status (5)

Country Link
US (1) US2809358A (en)
JP (1) JPS3110629B1 (en)
DE (1) DE1023807B (en)
FR (1) FR1135919A (en)
GB (1) GB771744A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014967A1 (en) * 1979-02-16 1980-09-03 Mitsubishi Denki Kabushiki Kaisha Bushing

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1076801B (en) * 1958-07-17 1960-03-03 Siemens Ag Cable entry for generators
DE1127422B (en) * 1960-03-08 1962-04-12 Siemens Ag Gas-tight electrical multiple feedthrough through the wall of a high-pressure container
US3793562A (en) * 1973-03-22 1974-02-19 Westinghouse Electric Corp With insulating battle supporting terminal conductors
DE2557299C2 (en) * 1975-12-19 1983-12-15 Brown, Boveri & Cie Ag, 6800 Mannheim Arrangement of the stator power connections of a turbo generator of high power
FR2467473A1 (en) * 1979-10-11 1981-04-17 Alsthom Cgee CURRENT TRANSFORMER FOR HIGH VOLTAGE INSTALLATION
US4455659A (en) * 1982-03-04 1984-06-19 Watteredge-Uniflex, Inc. Coaxial bus and bus system
DE4040903A1 (en) * 1990-12-20 1992-06-25 Felten & Guilleaume Energie PERFORMANCE FOR GAS INSULATED SWITCHGEAR
DE102010027423A1 (en) * 2010-07-14 2012-01-19 Siemens Aktiengesellschaft Polyphase gas-insulated cable entry module with encapsulation

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB144191A (en) * 1919-11-11 1920-06-10 Gen Electric Improvements in and relating to bushings for electric conductors
US1539658A (en) * 1924-05-23 1925-05-26 Gen Electric Protective apparatus
US1957982A (en) * 1931-12-03 1934-05-08 Franklin S Smith High voltage terminal construction
US2135321A (en) * 1935-10-12 1938-11-01 Ohio Brass Co High current bushing
US2411656A (en) * 1944-02-07 1946-11-26 Stromberg Carlson Co Coaxial bushing
US2640102A (en) * 1950-12-06 1953-05-26 Westinghouse Electric Corp Current transformer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0014967A1 (en) * 1979-02-16 1980-09-03 Mitsubishi Denki Kabushiki Kaisha Bushing

Also Published As

Publication number Publication date
US2809358A (en) 1957-10-08
DE1023807B (en) 1958-02-06
FR1135919A (en) 1957-05-06
JPS3110629B1 (en) 1956-12-19

Similar Documents

Publication Publication Date Title
GB1499519A (en) Measuring transformers for high voltage switchgear
GB1461487A (en) High-voltage assemblies
KR870006696A (en) Three phase generator device
US1873977A (en) Condenser bushing
WO2019194754A1 (en) Link box with built-in insulator type voltage divider and inductive partial discharge sensor
GB771744A (en) Improvements in or relating to bushings for electrical apparatus
CN107424799B (en) Gas-insulated transformer
US3643003A (en) Transformer termination for metal-enclosed, compressed-gas-insulated electrical conductors
GB1256054A (en) Improvements in and relating to isolator switches provided with earthing devices
CN110542777B (en) Three-phase integrated GIS independent bus voltage measuring device
JPH0158725B2 (en)
ATE3679T1 (en) FULLY INSULATED, METAL ENCLOSED HIGH VOLTAGE SWITCHGEAR WITH SINGLE-LINE CURRENT TRANSFORMERS.
GB1099573A (en) Improvements in high voltage current transformers
US4231074A (en) Zero sequence current source for transformer having a nonwound tertiary
US2402466A (en) Bushing for electrical apparatus
US2802176A (en) Bushing for electrical apparatus
US4030057A (en) Inductive voltage transformer
GB1416233A (en) Electrical bushing
SE8007017L (en) HIGH POWER TRANSFORMER
GB476408A (en) Improvements in or relating to a lead-in for cables to transformers, condensers and the like
EP4329117A1 (en) Arrangement of a current transformer core at an interface with a conical connector
GB766062A (en) Improvements in or relating to current transformer mountings for high voltage electrical apparatus
CA1067593A (en) Interface for high voltage oil-filled and gas-filled apparatus
US1695864A (en) Instrument-transformer mounting
GB963324A (en) Electrical inductive apparatus