DE59402299D1 - Toroidal current transformer for installation in a metal-enclosed high-voltage switchgear - Google Patents

Toroidal current transformer for installation in a metal-enclosed high-voltage switchgear

Info

Publication number
DE59402299D1
DE59402299D1 DE59402299T DE59402299T DE59402299D1 DE 59402299 D1 DE59402299 D1 DE 59402299D1 DE 59402299 T DE59402299 T DE 59402299T DE 59402299 T DE59402299 T DE 59402299T DE 59402299 D1 DE59402299 D1 DE 59402299D1
Authority
DE
Germany
Prior art keywords
capsule
installation
metal
current transformer
core
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 - Fee Related
Application number
DE59402299T
Other languages
German (de)
Inventor
Walter Lacher
Gerardo Palmieri
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 Switzerland GmbH
Original Assignee
GEC Alsthom T&D 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 GEC Alsthom T&D AG filed Critical GEC Alsthom T&D AG
Application granted granted Critical
Publication of DE59402299D1 publication Critical patent/DE59402299D1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • H01F2038/305—Constructions with toroidal magnetic core

Abstract

The transformer has at least one ring core (4,5,6), with a secondary winding (1,2,3), arranged in the capsule (9,10). A primary conductor (7) runs in the opening of the core(s) (4,5,6). An inner tube (11) is arranged between the core (4,5,6) and the primary conductor (7). One end of the tube (11) is electrically connected to the capsule (10). Its other end is separated from the capsule (9) by an insulating gap (14). Its other points are electrically insulated from the capsule (9,10). Each ring core (4,5,6) has its outer coaxial boundary surface on the inner surface of the capsule (9). Each bounding surface extending perpendicular to the longitudinal axis of the conductor (7) and not lying directly on the capsule (9,10), lies on an annular conductive disc (15,16,17,22). The latter is conductively connected with the inner surface of the capsule (9).
DE59402299T 1994-02-17 1994-02-17 Toroidal current transformer for installation in a metal-enclosed high-voltage switchgear Expired - Fee Related DE59402299D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP94102403A EP0668598B1 (en) 1994-02-17 1994-02-17 Current transformer with annular core to be built in a metal cast high-tension switchgear installation

Publications (1)

Publication Number Publication Date
DE59402299D1 true DE59402299D1 (en) 1997-05-07

Family

ID=8215695

Family Applications (1)

Application Number Title Priority Date Filing Date
DE59402299T Expired - Fee Related DE59402299D1 (en) 1994-02-17 1994-02-17 Toroidal current transformer for installation in a metal-enclosed high-voltage switchgear

Country Status (3)

Country Link
EP (1) EP0668598B1 (en)
AT (1) ATE151195T1 (en)
DE (1) DE59402299D1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2118038B1 (en) * 1996-06-13 1999-04-16 Abb Subestaciones S A INTENSITY TRANSFORMER ISOLATED IN SULFUR HEXAPHLORIDE, INTEGRATED IN A HIGH VOLTAGE SWITCH.
DE19635749C2 (en) * 1996-09-03 1999-05-06 Siemens Ag Transducer
DE102010062605A1 (en) * 2010-12-08 2012-06-14 Siemens Aktiengesellschaft Current transformer assembly

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2720689C2 (en) * 1977-05-07 1983-05-26 Calor-Emag Elektrizitäts-Aktiengesellschaft, 4030 Ratingen Single wire bushing current transformer
CH660262A5 (en) * 1982-12-10 1987-03-31 Bbc Brown Boveri & Cie POWER CONVERTER.
CH670327A5 (en) * 1985-10-09 1989-05-31 Sprecher Energie Ag
DE4106034A1 (en) 1991-02-22 1992-08-27 Siemens Ag POWER CONVERTER

Also Published As

Publication number Publication date
ATE151195T1 (en) 1997-04-15
EP0668598B1 (en) 1997-04-02
EP0668598A1 (en) 1995-08-23

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: ALSTOM AG, OBERENTFELDEN, CH

8328 Change in the person/name/address of the agent

Free format text: LEINWEBER & ZIMMERMANN, 80331 MUENCHEN

8339 Ceased/non-payment of the annual fee