GB1145420A - Improvements in high voltage current transformer - Google Patents

Improvements in high voltage current transformer

Info

Publication number
GB1145420A
GB1145420A GB9838/68A GB983868A GB1145420A GB 1145420 A GB1145420 A GB 1145420A GB 9838/68 A GB9838/68 A GB 9838/68A GB 983868 A GB983868 A GB 983868A GB 1145420 A GB1145420 A GB 1145420A
Authority
GB
United Kingdom
Prior art keywords
column
tank
tension member
base
earthed
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
GB9838/68A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1145420A publication Critical patent/GB1145420A/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

Abstract

1,145,420. Current transformers. GENERAL ELECTRIC CO. 29 Feb., 1968 [10 March, 1967], No. 9838/68. Heading H1T. A current transformer comprises a base 10 supporting an insulating column 12, in turn supporting a metal tank 14 through which runs a high voltage primary conductor 40, a secondary winding assembly 50 surrounding the primary 40 disposed within the tank 14; and a tubular metal tension member 18 extending through the column 12, provided with a means to clamp the tank 14, column 12 and base 10 together and compressively preload the column 12. Clamping means may be by a number of studs 30 co-operating with spring washers 36 to clamp flange 34 welded to the bottom of tension member 18 in relation to the base 10. The secondary coils are earthed at one point and are supported by the insulating support 24 which is clamped in position by the aforesaid means. The force produced in spring washers 36 may be varied by adjusting screw means 20 to vary the effective length of tension member 18. Each secondary 50 and 52 has an earthed magnetic core 54 and insulative covering 64, and the whole secondary assembly is enclosed in the grounded metal shielding 60. The tension member 18 serves as a conduit for the leads 66 of the secondary windings. Additional electric shielding 70 and 72 may be provided. The tank and insulating column are filled with sulphur hexafluoride under pressure.
GB9838/68A 1967-03-10 1968-02-29 Improvements in high voltage current transformer Expired GB1145420A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US622204A US3380009A (en) 1967-03-10 1967-03-10 High voltage current transformer

Publications (1)

Publication Number Publication Date
GB1145420A true GB1145420A (en) 1969-03-12

Family

ID=24493297

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9838/68A Expired GB1145420A (en) 1967-03-10 1968-02-29 Improvements in high voltage current transformer

Country Status (5)

Country Link
US (1) US3380009A (en)
JP (1) JPS4633250B1 (en)
DE (1) DE1613798A1 (en)
FR (1) FR1556122A (en)
GB (1) GB1145420A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3230091A1 (en) * 1982-07-19 1984-01-19 BBC Aktiengesellschaft Brown, Boveri & Cie., 5401 Baden, Aargau PRESSURE GAS-INSULATED CURRENT TRANSFORMER
CN115547654A (en) * 2022-08-16 2022-12-30 郑州三晖互感器有限公司 Insulator type 10kV current transformer with low partial discharge and high-voltage lead shielding module

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3456222A (en) * 1968-04-25 1969-07-15 Gen Electric High voltage current transformer
DE2325450A1 (en) * 1973-05-17 1974-11-21 Siemens Ag SINGLE CONVERTER FOR HIGH VOLTAGE SWITCHGEAR
DE2452056B2 (en) * 1974-11-02 1978-02-09 Messwandler-Bau Gmbh, 8600 Bamberg INDUCTIVE VOLTAGE CONVERTER FOR A METAL ENCLOSED HIGH VOLTAGE SWITCHGEAR FULLY INSULATED WITH INSULATING GAS
DE2939934C2 (en) * 1979-09-28 1983-10-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Current transformer with a core shell
DE3012163C2 (en) * 1980-03-27 1983-12-29 Siemens AG, 1000 Berlin und 8000 München Gas or liquid insulated current transformer
DE3012165C2 (en) * 1980-03-27 1983-09-01 Siemens AG, 1000 Berlin und 8000 München Gas or liquid insulated transducers
US4321493A (en) * 1980-04-02 1982-03-23 Sundstrand Corporation Current transformer support assembly
FR2513004A1 (en) * 1981-09-17 1983-03-18 Alsthom Atlantique SETTING DEVICE FOR TRANSPORTING A REVERSE-TYPE CURRENT TRANSFORMER IN A LAYERED POSITION
CH667557A5 (en) * 1985-03-14 1988-10-14 Sprecher Energie Ag HIGH VOLTAGE SWITCHGEAR.
DE3608391A1 (en) * 1985-11-15 1987-09-17 Messwandler Bau Ag HIGH VOLTAGE CURRENT TRANSFORMER
DE3540547A1 (en) * 1985-11-15 1987-05-21 Messwandler Bau Ag High-voltage current transformer and a method for producing such a high-voltage current transformer
BR8700893A (en) * 1986-03-13 1987-12-22 Messwandler Bau Ag COMBINED HIGH VOLTAGE AND HIGH VOLTAGE CURRENT TRANSFORMER
US4748405A (en) * 1986-06-12 1988-05-31 Zenith Electronics Corporation Current sensor arrangement
DE3644553A1 (en) * 1986-12-24 1988-07-07 Raupach Friedrich Gas-insulated high-voltage current transformer
US4935693A (en) * 1987-10-14 1990-06-19 Square D Company Line secured current and voltage sensing apparatus
US5252913A (en) * 1987-10-14 1993-10-12 Square D Company Line sensor with corona shield
CA2055109A1 (en) * 1991-11-07 1993-05-08 Eugene Y. G. Yao Explosion resistant, oil insulated, current transformer
FR2820540A1 (en) * 2001-02-07 2002-08-09 Alstom ARRANGEMENT FOR ASSEMBLING AN ELECTRICALLY CONDUCTIVE BAR CROSSING THROUGHOUT A METAL TANK AND METHOD OF IMPLEMENTING
CN1977173A (en) * 2004-06-21 2007-06-06 Abb技术有限公司 Method and apparatus for measuring voltage in a power switching device
US7078996B1 (en) * 2005-05-20 2006-07-18 Ambient Corporation Inductive coupler for power line communications
CN101256894B (en) * 2007-12-29 2011-10-26 武汉格蓝若光电互感器有限公司 Novel high voltage independent electronic type current mutual inductor
WO2010061399A1 (en) * 2008-11-27 2010-06-03 Areva T&D India Ltd. A current transformer
US8502554B2 (en) * 2011-09-23 2013-08-06 General Electric Company Current transformer assembly for use with electrical monitoring systems and methods of assembling same
CN102680760A (en) * 2012-05-16 2012-09-19 中国铁道科学研究院基础设施检测研究所 High- and low- voltage signal isolation transmission device special for contact network inspection trolley
WO2016159963A1 (en) * 2015-03-31 2016-10-06 Alstom Technology Ltd. Top head housing
EP3208816A1 (en) * 2016-02-17 2017-08-23 General Electric Technology GmbH Current transformer having secondary transformation components into its base
EP3239997A1 (en) * 2016-04-25 2017-11-01 ABB Schweiz AG A hv apparatus and a method of manufacturing such apparatus
DE102018201359A1 (en) * 2018-01-30 2019-08-01 Siemens Aktiengesellschaft Power converter
CN108461266A (en) * 2018-03-15 2018-08-28 大连北方互感器集团有限公司 A kind of current transformer with low pressure shielding
EP4060696A1 (en) * 2021-03-17 2022-09-21 Hitachi Energy Switzerland AG High-voltage column current transformer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2331106A (en) * 1942-06-09 1943-10-05 Gen Electric Electric induction apparatus
US3281521A (en) * 1965-03-16 1966-10-25 Gen Electric Electrical apparatus insulated with a mixture of insulating gases

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3230091A1 (en) * 1982-07-19 1984-01-19 BBC Aktiengesellschaft Brown, Boveri & Cie., 5401 Baden, Aargau PRESSURE GAS-INSULATED CURRENT TRANSFORMER
CN115547654A (en) * 2022-08-16 2022-12-30 郑州三晖互感器有限公司 Insulator type 10kV current transformer with low partial discharge and high-voltage lead shielding module
CN115547654B (en) * 2022-08-16 2023-10-27 郑州三晖互感器有限公司 10kV current transformer of insulator type low partial discharge high-voltage lead shielding module

Also Published As

Publication number Publication date
US3380009A (en) 1968-04-23
DE1613798A1 (en) 1971-05-06
JPS4633250B1 (en) 1971-09-29
FR1556122A (en) 1969-01-31

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