EP0285604A1 - Stromtransformatoren - Google Patents

Stromtransformatoren

Info

Publication number
EP0285604A1
EP0285604A1 EP87900012A EP87900012A EP0285604A1 EP 0285604 A1 EP0285604 A1 EP 0285604A1 EP 87900012 A EP87900012 A EP 87900012A EP 87900012 A EP87900012 A EP 87900012A EP 0285604 A1 EP0285604 A1 EP 0285604A1
Authority
EP
European Patent Office
Prior art keywords
primary
current transformer
transformer according
current
insulators
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.)
Withdrawn
Application number
EP87900012A
Other languages
English (en)
French (fr)
Other versions
EP0285604A4 (de
Inventor
Anthony Lee
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.)
TYREE ELECTRICAL Co Pty Ltd
Original Assignee
TYREE ELECTRICAL Co Pty Ltd
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 TYREE ELECTRICAL Co Pty Ltd filed Critical TYREE ELECTRICAL Co Pty Ltd
Publication of EP0285604A1 publication Critical patent/EP0285604A1/de
Publication of EP0285604A4 publication Critical patent/EP0285604A4/de
Withdrawn legal-status Critical Current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

Definitions

  • the terminations for the primary are at the ends of the arms remote from the bridging portion and these must be physically supported and insulated from the earthed box.
  • the arms of the primary may be inclined towards one another so that the spacing at the free ends is closer than the spacing at the bridging portion.
  • this allows the toroids to be mounted on each of the arms near the bridging portion whilst maintaining a relatively small distance between the free ends where the electrical terminations are provided.
  • a single insulator such as of porcelain is fitted over both of the arms so as to physically hold and support the free ends of the primary where the terminations are made. The cost of producing this insulator has been relatively high.
  • Figure 2a is a view of a preferred current transformer according to the present invention.
  • Figure 5 is a transverse cross-sectional view taken along line 5-5 of Figure 2a.
  • the tank 9 and the insulator 13 are filled with an electrical insulating oil or other fluids or other insulating mediums.
  • a high voltage line such as 362kv line is attached to the respective terminals 11 so that current can flow serially through the primary 1 to a load. In this manner, the current flowing in the primary 1 will induce a current in the secondary 7 proportional to that in the primary 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformers For Measuring Instruments (AREA)
EP19870900012 1985-12-20 1986-12-09 Stromtransformatoren. Withdrawn EP0285604A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPH401585 1985-12-20
AU4015/85 1985-12-20

Publications (2)

Publication Number Publication Date
EP0285604A1 true EP0285604A1 (de) 1988-10-12
EP0285604A4 EP0285604A4 (de) 1988-10-20

Family

ID=3771423

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870900012 Withdrawn EP0285604A4 (de) 1985-12-20 1986-12-09 Stromtransformatoren.

Country Status (4)

Country Link
EP (1) EP0285604A4 (de)
CN (1) CN86108680A (de)
BR (1) BR8607231A (de)
WO (1) WO1987004002A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022204671A1 (de) 2022-05-12 2023-11-16 Robert Bosch Gesellschaft mit beschränkter Haftung Kühlmittelservicegerät, Verfahren zum Betrieb desselben und dessen Verwendung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007020539A1 (de) * 2007-04-26 2008-10-30 Siemens Ag Messwandleranordnung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB739497A (en) * 1953-07-02 1955-11-02 British Thomson Houston Co Ltd Improvements in current transformers
FR1288166A (fr) * 1961-02-08 1962-03-24 Comp Generale Electricite Perfectionnements aux transformateurs de mesure pour haute tension
US3571773A (en) * 1969-11-04 1971-03-23 Gen Electric Center clamped bushing transformer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE551529C (de) * 1932-06-01 Sachsenwerk Licht & Kraft Ag Durchfuehrungs-Schleifenwandler
GB571119A (en) * 1943-12-22 1945-08-08 Asea Electric Ltd Improvements in and relating to high tension electric current transformers
JPS5013453B1 (de) * 1970-12-14 1975-05-20

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB739497A (en) * 1953-07-02 1955-11-02 British Thomson Houston Co Ltd Improvements in current transformers
FR1288166A (fr) * 1961-02-08 1962-03-24 Comp Generale Electricite Perfectionnements aux transformateurs de mesure pour haute tension
US3571773A (en) * 1969-11-04 1971-03-23 Gen Electric Center clamped bushing transformer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO8704002A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022204671A1 (de) 2022-05-12 2023-11-16 Robert Bosch Gesellschaft mit beschränkter Haftung Kühlmittelservicegerät, Verfahren zum Betrieb desselben und dessen Verwendung
WO2023217466A1 (de) 2022-05-12 2023-11-16 Robert Bosch Gmbh Kühlmittelservicegerät, verfahren zum betrieb desselben und dessen verwendung

Also Published As

Publication number Publication date
WO1987004002A1 (en) 1987-07-02
CN86108680A (zh) 1987-07-22
EP0285604A4 (de) 1988-10-20
BR8607231A (pt) 1988-11-01

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19880620

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

A4 Supplementary search report drawn up and despatched

Effective date: 19881020

18W Application withdrawn

Withdrawal date: 19890123

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

R18W Application withdrawn (corrected)

Effective date: 19890123