CA2201968C - Dispositif a rapport d'intensite pouvant servir a former un transformateur de courant - Google Patents

Dispositif a rapport d'intensite pouvant servir a former un transformateur de courant Download PDF

Info

Publication number: CA2201968C
Authority: CA; Canada
Prior art keywords: core; winding; measuring; current; windings
Prior art date: 1997-03-26
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

CA 2201968

Other languages

English (en)

Other versions

CA2201968A1 (fr

Inventor

David A. Bennett

Eddy So

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.)

National Research Council of Canada

Original Assignee

National Research Council of Canada

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.)

1997-03-26

Filing date

1997-03-26

Publication date

2003-05-13

1997-03-26 Application filed by National Research Council of Canada filed Critical National Research Council of Canada

1997-03-26 Priority to CA 2201968 priority Critical patent/CA2201968C/fr

1998-09-26 Publication of CA2201968A1 publication Critical patent/CA2201968A1/fr

2003-05-13 Application granted granted Critical

2003-05-13 Publication of CA2201968C publication Critical patent/CA2201968C/fr

2017-03-26 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

238000004804 winding Methods 0.000 claims description 153
238000012937 correction Methods 0.000 claims description 14
230000002093 peripheral effect Effects 0.000 claims 5
238000000429 assembly Methods 0.000 claims 1
238000005259 measurement Methods 0.000 abstract description 5
230000006872 improvement Effects 0.000 description 9
230000035699 permeability Effects 0.000 description 9
230000004907 flux Effects 0.000 description 6
238000012360 testing method Methods 0.000 description 5
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
229910052802 copper Inorganic materials 0.000 description 4
239000010949 copper Substances 0.000 description 4
239000004593 Epoxy Substances 0.000 description 3
238000010276 construction Methods 0.000 description 3
229910000815 supermalloy Inorganic materials 0.000 description 3
230000002950 deficient Effects 0.000 description 2
238000009413 insulation Methods 0.000 description 2
238000000034 method Methods 0.000 description 2
239000011800 void material Substances 0.000 description 2
241000256683 Peregrinus Species 0.000 description 1
230000018199 S phase Effects 0.000 description 1
230000009471 action Effects 0.000 description 1
244000309466 calf Species 0.000 description 1
238000011156 evaluation Methods 0.000 description 1
238000011065 in-situ storage Methods 0.000 description 1
239000011810 insulating material Substances 0.000 description 1
239000000463 material Substances 0.000 description 1

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
- G01R15/183—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core
- G01R15/185—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core with compensation or feedback windings or interacting coils, e.g. 0-flux sensors
- 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

Landscapes

Engineering & Computer Science (AREA)
Power Engineering (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Transformers For Measuring Instruments (AREA)
Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

CA 2201968 1997-03-26 1997-03-26 Dispositif a rapport d'intensite pouvant servir a former un transformateur de courant Expired - Fee Related CA2201968C (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA 2201968 CA2201968C (fr)	1997-03-26	1997-03-26	Dispositif a rapport d'intensite pouvant servir a former un transformateur de courant

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA 2201968 CA2201968C (fr)	1997-03-26	1997-03-26	Dispositif a rapport d'intensite pouvant servir a former un transformateur de courant

Publications (2)

Publication Number	Publication Date
CA2201968A1 CA2201968A1 (fr)	1998-09-26
CA2201968C true CA2201968C (fr)	2003-05-13

Family

ID=4160346

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA 2201968 Expired - Fee Related CA2201968C (fr)	1997-03-26	1997-03-26	Dispositif a rapport d'intensite pouvant servir a former un transformateur de courant

Country Status (1)

Country	Link
CA (1)	CA2201968C (fr)

1997
- 1997-03-26 CA CA 2201968 patent/CA2201968C/fr not_active Expired - Fee Related

Also Published As

Publication number	Publication date
CA2201968A1 (fr)	1998-09-26

Similar Documents

Publication	Publication Date	Title
Moore et al.	1988	The current comparator
US8901919B2 (en)	2014-12-02	Compact, two stage, zero flux electronically compensated current or voltage transducer employing dual magnetic cores having substantially dissimilar magnetic characteristics
US10139432B2 (en)	2018-11-27	Methods and systems relating to improved AC signal performance of dual stage transformers
US4413230A (en)	1983-11-01	Electric energy meter having a mutual inductance current transducer
US7279884B2 (en)	2007-10-09	Temperature compensated and self-calibrated current sensor using reference magnetic field
US5066904A (en)	1991-11-19	Coaxial current sensors
US4491790A (en)	1985-01-01	Electric energy meter having a mutual inductance current transducer
EP0365216B1 (fr)	1994-03-02	Capteur de courant
Schon	2019	High voltage measurement techniques
US5896027A (en)	1999-04-20	Current ratio device for use in forming a current transformer
Emanuel et al.	2007	Current harmonics measurement by means of current transformers
So et al.	2002	High-current high-precision openable-core AC and AC/DC current transformers
RU2119676C1 (ru)	1998-09-27	Устройство для поверки измерительных трансформаторов тока
Delahaye et al.	2002	Accurate AC measurements of standard resistors between 1 and 20 Hz
Baguley et al.	2008	A new technique for measuring ferrite core loss under DC bias conditions
Djokic et al.	2006	An optically isolated hybrid two-stage current transformer for measurements at high voltage
Ai et al.	2005	Novel method of error current compensation for Hall-effect-based high-accuracy current transformer
CA2201968C (fr)	2003-05-13	Dispositif a rapport d'intensite pouvant servir a former un transformateur de courant
So et al.	2002	A low-current multistage clamp-on current transformer with ratio errors below 50/spl times/10/sup-6
CA1181133A (fr)	1985-01-15	Appareil pour mesurer l'energie electrique avec transducteur de courant a inductance mutuelle
Ozer et al.	2025	Comparison of current ratio errors of support and toroidal type CTs in electric power systems: A case study
GB2026175A (en)	1980-01-30	Electric energy meter having a current-sensing transformer
Hasegawa et al.	2002	Development of a new type of optical transducer for measuring fault current
Korasli	2007	Line-current compensated single toroidal-core current transformer for three-phase current measurement
Miljanic et al.	2007	The application of current comparators to the calibration of current transformers at ratios up to 36000/5 amperes

Legal Events

Date	Code	Title	Description
1999-09-13	EEER	Examination request
2015-05-07	MKLA	Lapsed	Effective date: 20150326