AU7891187A - Creation of Inventions and Patents with Artificial Intelligence

AU7891187A – Measuring transformers
– Google Patents

AU7891187A – Measuring transformers
– Google Patents
Measuring transformers

Info

Publication number
AU7891187A

AU7891187A
AU78911/87A
AU7891187A
AU7891187A
AU 7891187 A
AU7891187 A
AU 7891187A
AU 78911/87 A
AU78911/87 A
AU 78911/87A
AU 7891187 A
AU7891187 A
AU 7891187A
AU 7891187 A
AU7891187 A
AU 7891187A
Authority
AU
Australia
Prior art keywords
conductor
coil
electrical current
conductor portions
conductor portion
Prior art date
1986-09-29
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.)

Granted

Application number
AU78911/87A
Other versions

AU603382B2
(en

Inventor
Urs Brandenberg
Thomas Seitz
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 Building Technologies AG

Original Assignee
Landis and Gyr AG
LGZ Landis and Gyr Zug 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.)
1986-09-29
Filing date
1987-09-22
Publication date
1988-03-31

1987-09-22
Application filed by Landis and Gyr AG, LGZ Landis and Gyr Zug AG
filed
Critical
Landis and Gyr AG

1988-03-31
Publication of AU7891187A
publication
Critical
patent/AU7891187A/en

1990-11-15
Application granted
granted
Critical

1990-11-15
Publication of AU603382B2
publication
Critical
patent/AU603382B2/en

2007-09-22
Anticipated expiration
legal-status
Critical

Status
Ceased
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

G—PHYSICS

G01—MEASURING; TESTING

G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES

G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 – G01R29/00, G01R33/00 – G01R33/26 or G01R35/00

G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks

G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers

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

A transformer system for measuring electrical current includes an electrical conductor having first and second conductor portions. The first conductor portion conducts electrical current in one direction and the second conductor portion conducts the electrical current in an opposite direction. The first conductor portion produces a magnetic field Ha and the second conductor portion produces a magnetic field Hb. A coil having a non-ferromagnetic core is positioned between the first and second conductor portions so that the axis of the coil is substantially parallel to the magnetic fields Ha and Hb. The separation between the outer circumferential surface of the coil and the first and second conductor portions is the minimum distance for avoiding a voltage breakdown therebetween for a predetermined maximum electrical current in the conductor portions. At least one ferromagnetic shield surrounds the first and second conductor portions for shielding the coil from external magnetic fields.

AU78911/87A
1986-09-29
1987-09-22
Measuring transformers

Ceased

AU603382B2
(en)

Applications Claiming Priority (2)

Application Number
Priority Date
Filing Date
Title

CH3899/86

1986-09-29

CH389986

1986-09-29

Publications (2)

Publication Number
Publication Date

AU7891187A
true

AU7891187A
(en)

1988-03-31

AU603382B2

AU603382B2
(en)

1990-11-15

Family
ID=4265897
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

AU78911/87A
Ceased

AU603382B2
(en)

1986-09-29
1987-09-22
Measuring transformers

Country Status (9)

Country
Link

US
(1)

US4810989A
(en)

EP
(1)

EP0262293B1
(en)

JP
(1)

JPH081867B2
(en)

AT
(1)

ATE59480T1
(en)

AU
(1)

AU603382B2
(en)

DE
(1)

DE3767106D1
(en)

DK
(1)

DK166641B1
(en)

ES
(1)

ES2019323B3
(en)

NO
(1)

NO170179C
(en)

Cited By (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

AU580941B2
(en)

1985-11-08
1989-02-02
Siemens Aktiengesellschaft
Molded case circuit breaker current transformer with spiral bus

AU591840B2
(en)

1987-05-26
1989-12-14
Lgz Landis & Gyr Zug A.G.
Measuring transformers for measuring currents flowing in electrical conductors

Families Citing this family (24)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE3823389C1
(en)

1988-07-09
1989-08-24
Obo Bettermann Ohg, 5750 Menden, De

EP0481104A1
(en)

1990-10-15
1992-04-22
Siemens Aktiengesellschaft
Transducer for electricity meter

CH681492A5
(en)

1991-01-09
1993-03-31
Zellweger Uster Ag

CH681749A5
(en)

1991-01-09
1993-05-14
Zellweger Uster Ag

CH682860A5
(en)

1991-12-13
1993-11-30
Zellweger Uster Ag
Transducers Static electricity meters.

US5416408A
(en)

1993-07-06
1995-05-16
General Electric Company
Current sensor employing a mutually inductive current sensing scheme with a magnetic field substantially uniform in angular direction

US5459395A
(en)

1993-07-06
1995-10-17
General Electric Company
Reduced flux current sensor

US5446372A
(en)

1993-07-06
1995-08-29
General Electric Company
Noninductive shunt current sensor with self-power capability

US5420504A
(en)

1993-07-06
1995-05-30
General Electric Company
Noninductive shunt current sensor based on concentric-pipe geometry

US5453681A
(en)

1993-07-06
1995-09-26
General Electric Company
Current sensor employing a mutually inductive current sensing scheme

US5463313A
(en)

1993-09-09
1995-10-31
General Electric Company
Reduced magnetic field line integral current sensor

US5438257A
(en)

1993-09-09
1995-08-01
General Electric Company
Reduced magnetic flux current sensor

US5451865A
(en)

1994-02-25
1995-09-19
General Electric Company
Method and apparatus for sensing an input current with a bridge circuit

US5587651A
(en)

1994-11-21
1996-12-24
General Electric Company
Alternating current sensor based on parallel-plate geometry and having a conductor for providing separate self-powering

US6023160A
(en)

1994-12-19
2000-02-08
General Electric Company
Electrical metering system having an electrical meter and an external current sensor

US6114847A
(en)

1995-10-04
2000-09-05
Johnson; Darrell
Connectionless signal detection device for conductive cables

WO1999010750A1
(en)

1997-08-28
1999-03-04
General Electric Company
Self powered current sensor

US6177806B1
(en)

1997-09-03
2001-01-23
International Business Machines Corp.
Signal sensor for rf integrated systems

AU2002226656A1
(en)

2001-01-22
2002-08-06
Flatcoil Solutions Ltd.
Flat coil

ITMI20041589A1
(en)

2004-08-02
2004-11-02
Herholdt Controls S R L

DEVICE AND PROCEDURE FOR MEASURING THE MODULE AND PHASE OF THE CURRENT WHICH AT LEAST ONE CONDUCTOR

WO2006123320A1
(en)

2005-05-18
2006-11-23
Suparules Limited
Shielded current sensor

FR2907590B1
(en)

2006-10-23
2009-01-23
Commissariat Energie Atomique

ANNULAR SOLENOID WINDING, WINDING HAVING MULTIPLE WINDING BRANCHES AND MICRO-INDUCTANCE COMPRISING ONE OF THE WINDINGS

JP5366418B2
(en)

2008-03-24
2013-12-11
東光東芝メーターシステムズ株式会社

Current detector and watt-hour meter using the same

JP6696571B2
(en)

2016-06-09
2020-05-20
株式会社村田製作所

Current sensor and current sensor module

Family Cites Families (11)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

DE1079192B
(en)

1959-02-26
1960-04-07
Licentia Gmbh

Magnetic voltmeter

DE1133817B
(en)

1961-02-06
1962-07-26
Licentia Gmbh

Current transformer with primary winding consisting of two busbars

GB2000873B
(en)

1977-07-08
1982-05-26
Landis & Gyr Ag
Measuring transformers for potential-free measurement of currents or voltages and static electricity meters including such transformers

CH621428A5
(en)

1977-12-15
1981-01-30
Sulzer Ag

US4189618A
(en)

1978-07-31
1980-02-19
Allied Chemical Corporation
Electromagnetic shielding envelopes from wound glassy metal filaments

CH650357A5
(en)

1981-03-26
1985-07-15
Landis & Gyr Ag

MAGNETIC CORE-FREE MEASURING CONVERTER FOR POTENTIAL-FREE MEASUREMENT OF A MEASURING CURRENT.

DE3140544A1
(en)

1981-10-13
1983-04-21
Richard Dr.-Ing. 3300 Braunschweig Friedl

ACTIVE CURRENT SENSOR WITH PRIMARY REDUCER

FR2518266A1
(en)

1981-12-15
1983-06-17
Telemecanique Electrique

CURRENT MEASURING DEVICE CIRCULATING IN A DRIVER

CH660537A5
(en)

1983-03-02
1987-04-30
Landis & Gyr Ag

MEASURING CONVERTER FOR MEASURING A CURRENT.

DE3619423A1
(en)

1985-09-14
1987-04-16
Friedl Richard
Current transformer arrangement for a solid-state electricity meter

CH673160A5
(en)

1986-02-10
1990-02-15
Landis & Gyr Ag

1987

1987-05-04
AT
AT87106436T
patent/ATE59480T1/en
active

1987-05-04
ES
ES87106436T
patent/ES2019323B3/en
not_active
Expired – Lifetime

1987-05-04
DE
DE8787106436T
patent/DE3767106D1/en
not_active
Expired – Fee Related

1987-05-04
EP
EP87106436A
patent/EP0262293B1/en
not_active
Expired – Lifetime

1987-07-22
JP
JP62181306A
patent/JPH081867B2/en
not_active
Expired – Lifetime

1987-08-19
US
US07/087,100
patent/US4810989A/en
not_active
Expired – Fee Related

1987-09-22
AU
AU78911/87A
patent/AU603382B2/en
not_active
Ceased

1987-09-28
NO
NO874064A
patent/NO170179C/en
unknown

1987-09-28
DK
DK510487A
patent/DK166641B1/en
not_active
IP Right Cessation

Cited By (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

AU580941B2
(en)

1985-11-08
1989-02-02
Siemens Aktiengesellschaft
Molded case circuit breaker current transformer with spiral bus

AU591840B2
(en)

1987-05-26
1989-12-14
Lgz Landis & Gyr Zug A.G.
Measuring transformers for measuring currents flowing in electrical conductors

Also Published As

Publication number
Publication date

AU603382B2
(en)

1990-11-15

US4810989A
(en)

1989-03-07

DE3767106D1
(en)

1991-02-07

EP0262293B1
(en)

1990-12-27

NO170179B
(en)

1992-06-09

DK510487A
(en)

1988-03-30

JPH081867B2
(en)

1996-01-10

ES2019323B3
(en)

1991-06-16

ATE59480T1
(en)

1991-01-15

DK166641B1
(en)

1993-06-21

EP0262293A1
(en)

1988-04-06

DK510487D0
(en)

1987-09-28

NO874064L
(en)

1988-03-30

NO170179C
(en)

1992-09-16

NO874064D0
(en)

1987-09-28

JPS6386507A
(en)

1988-04-16

Contact information