WO2009011536A3 - Method of compensating for errors of measuring current transformer in consideration of hysteresis characteristics of core - Google Patents

Method of compensating for errors of measuring current transformer in consideration of hysteresis characteristics of core Download PDF

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Publication number
WO2009011536A3
WO2009011536A3 PCT/KR2008/004147 KR2008004147W WO2009011536A3 WO 2009011536 A3 WO2009011536 A3 WO 2009011536A3 KR 2008004147 W KR2008004147 W KR 2008004147W WO 2009011536 A3 WO2009011536 A3 WO 2009011536A3
Authority
WO
WIPO (PCT)
Prior art keywords
current
secondary voltage
core
magnetic flux
relationship information
Prior art date
Application number
PCT/KR2008/004147
Other languages
French (fr)
Other versions
WO2009011536A2 (en
Inventor
Yong Kyun Kim
Yong Cheol Kang
Tai Ying Zheng
Original Assignee
Hankook Ied
Yong Kyun Kim
Yong Cheol Kang
Tai Ying Zheng
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 Hankook Ied, Yong Kyun Kim, Yong Cheol Kang, Tai Ying Zheng filed Critical Hankook Ied
Publication of WO2009011536A2 publication Critical patent/WO2009011536A2/en
Publication of WO2009011536A3 publication Critical patent/WO2009011536A3/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/42—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils
    • H01F27/422—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers
    • H01F27/427—Circuits specially adapted for the purpose of modifying, or compensating for, electric characteristics of transformers, reactors, or choke coils for instrument transformers for current transformers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H01F17/045—Fixed inductances of the signal type  with magnetic core with core of cylindric geometry and coil wound along its longitudinal axis, i.e. rod or drum core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/255—Magnetic cores made from particles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F3/10—Composite arrangements of magnetic circuits
    • H01F3/12—Magnetic shunt paths

Abstract

A method of compensating for the errors of a measuring current transformer in consideration of the hysteresis characteristics of a core is disclosed. Secondary current is measured at predetermined time intervals, and a secondary voltage is calculated based on the secondary current. Magnetic flux is calculated based on the secondary voltage, and a reference value for selecting magnetic flux-magnetizing current relationship information and secondary voltage-core loss current relationship information is calculated based on the calculated magnetic flux. The magnetic flux-magnetizing current relationship information and the secondary voltage-core loss current relationship information are selected. The value of the magnetizing current for the magnetic flux is calculated. The value of core loss current for the secondary voltage is calculated based on the secondary voltage and the secondary voltage-core loss current relationship information. Exciting current and compensation current are calculated.
PCT/KR2008/004147 2007-07-16 2008-07-15 Method of compensating for errors of measuring current transformer in consideration of hysteresis characteristics of core WO2009011536A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070071328A KR100860570B1 (en) 2007-07-16 2007-07-16 Error compensating method for a measurement type current transformer considering hysteresis characteric of the core
KR10-2007-0071328 2007-07-16

Publications (2)

Publication Number Publication Date
WO2009011536A2 WO2009011536A2 (en) 2009-01-22
WO2009011536A3 true WO2009011536A3 (en) 2009-03-12

Family

ID=40152562

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/004147 WO2009011536A2 (en) 2007-07-16 2008-07-15 Method of compensating for errors of measuring current transformer in consideration of hysteresis characteristics of core

Country Status (2)

Country Link
KR (1) KR100860570B1 (en)
WO (1) WO2009011536A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2538214C1 (en) * 2013-06-19 2015-01-10 федеральное государственное автономное образовательное учреждение высшего образования "Санкт-Петербургский государственный политехнический университет" (ФГАОУ ВО "СПбПУ") Differential protection method of electrical installation
CN105548938A (en) * 2015-11-27 2016-05-04 国网宁夏电力公司电力科学研究院 Voltage transformer error reckoning method under actual operation load
RU2646863C1 (en) * 2017-01-23 2018-03-12 федеральное государственное бюджетное образовательное учреждение высшего образования "Иркутский национальный исследовательский технический университет" (ФГБОУ ВО "ИРНИТУ") Method of reducing the error and increasing the range of accurate determination of the primary signal of the transformer
CN109308403B (en) * 2018-11-26 2022-11-04 荀佳钰 Method for determining J-A simulation model of current transformer based on physical experiment
CN111581864B (en) * 2020-04-30 2023-04-28 全球能源互联网研究院有限公司 Method and device for separating losses of saturation reactor for converter valve
CN116027245B (en) * 2023-02-01 2023-08-01 广州市德珑电子器件有限公司 Measuring method and system based on wide-range current transformer

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0130594B1 (en) * 1994-12-16 1998-04-15 강용철 A client computation method of a client transformer
KR100561712B1 (en) * 2005-08-09 2006-03-15 (주)지앤지컨설턴트에프디아이 Error compensating method for instrument transformer
KR100580428B1 (en) * 2004-10-11 2006-05-15 명지대학교 산학협력단 A compensation method for the distorted secondary current of a current transformer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR0130594B1 (en) * 1994-12-16 1998-04-15 강용철 A client computation method of a client transformer
KR100580428B1 (en) * 2004-10-11 2006-05-15 명지대학교 산학협력단 A compensation method for the distorted secondary current of a current transformer
KR100561712B1 (en) * 2005-08-09 2006-03-15 (주)지앤지컨설턴트에프디아이 Error compensating method for instrument transformer

Also Published As

Publication number Publication date
WO2009011536A2 (en) 2009-01-22
KR100860570B1 (en) 2008-10-02

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