GB434995A - Improvements relating to current transformers - Google Patents

Improvements relating to current transformers

Info

Publication number
GB434995A
GB434995A GB23053/34A GB2305334A GB434995A GB 434995 A GB434995 A GB 434995A GB 23053/34 A GB23053/34 A GB 23053/34A GB 2305334 A GB2305334 A GB 2305334A GB 434995 A GB434995 A GB 434995A
Authority
GB
United Kingdom
Prior art keywords
condenser
casing
insulating
terminals
terminal
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
GB23053/34A
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.)
Siemens and Halske AG
Siemens AG
Original Assignee
Siemens and Halske AG
Siemens AG
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 Siemens and Halske AG, Siemens AG filed Critical Siemens and Halske AG
Publication of GB434995A publication Critical patent/GB434995A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/18—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient
    • B65D81/20—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas
    • B65D81/2046—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under superatmospheric pressure
    • B65D81/2053—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents providing specific environment for contents, e.g. temperature above or below ambient under vacuum or superatmospheric pressure, or in a special atmosphere, e.g. of inert gas under superatmospheric pressure in an least partially rigid container
    • 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

434,995. Transformers; condensers. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Aug. 9, 1934, No. 23053. Convention date, Aug. 9, 1933. [Class 38 (ii)] A current transformer has its primary winding 6 and secondary winding 7 arranged in an insulating casing 1, a series arrangement of condensers 12 connected only between high and low potential terminals of the transformer being so disposed in and along the wall of the casing 1 that the potential drop in the condenser arrangement is in the same sense as the potential drop in the casing 1. The casing 1 has a conducting cap 3 to which one of the high tension terminals 4, 5, is connected and is provided with an oiltight base 2 in which low tension terminals 9, 10, 11 are arranged. The annular condenser elements 12 are secured on insulating cylinders 13, 14, by conducting rings 19, 17, 20, 18, and have external diameters slightly smaller than the corresponding internal diameters of the adjacent portions of the casing 1. The conducting ring 19 which is in contact with one end of the condenser chain is connected to a high potential terminal 4 or 5, while the conducting ring 18 which is in contact with the other end of the condenser chain is connected to one of the low potential terminals 9, 10, 11. This latter connection may be made, as shown, to the earthed terminal 9 to which one side of the secondary winding 7 is also connected, the other side of 7 being connected to terminal 10 and the high potential side of the lowest condenser element being connected to terminal 11 so that voltage measurements may be made across terminals 9, 11. The insulating tubes 13, 14 may be perforated to permit oil circulation or may be replaced by a number of bars. As shown in Fig. 1a each ring-shaped condenser element comprises two coating bands separated by insulating bands and wound together in spiral form. One coating band projects from the upper side of the insulating bands and is bent radially inwards at 15, while the other band projects from the lower side of the insulating bands and is bent radially inwards at 16. Series connection between adjacent condenser elements is then made by contact between the lower edge 16 of the upper element and the upper edge 15 of the lower element.
GB23053/34A 1933-08-09 1934-08-09 Improvements relating to current transformers Expired GB434995A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE434995X 1933-08-09

Publications (1)

Publication Number Publication Date
GB434995A true GB434995A (en) 1935-09-12

Family

ID=6506714

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23053/34A Expired GB434995A (en) 1933-08-09 1934-08-09 Improvements relating to current transformers

Country Status (2)

Country Link
FR (1) FR434995A (en)
GB (1) GB434995A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2263362A (en) * 1992-01-06 1993-07-21 Pag Ltd Radio interference suppression device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2263362A (en) * 1992-01-06 1993-07-21 Pag Ltd Radio interference suppression device
GB2263362B (en) * 1992-01-06 1995-06-07 Pag Ltd Radio interference suppression device

Also Published As

Publication number Publication date
FR434995A (en) 1912-02-17

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