HK1125698A1 - Current transformer and electric energy meter - Google Patents
Current transformer and electric energy meterInfo
- Publication number
- HK1125698A1 HK1125698A1 HK09104218.9A HK09104218A HK1125698A1 HK 1125698 A1 HK1125698 A1 HK 1125698A1 HK 09104218 A HK09104218 A HK 09104218A HK 1125698 A1 HK1125698 A1 HK 1125698A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- electric energy
- current transformer
- energy meter
- meter
- transformer
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R5/00—Instruments for converting a single current or a single voltage into a mechanical displacement
- G01R5/14—Moving-iron instruments
- G01R5/18—Moving-iron instruments with pivoting soft iron, e.g. needle galvanometer
-
- 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
-
- 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
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
- H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
- H02M5/10—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers
- H02M5/16—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using transformers for conversion of frequency
-
- 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
-
- 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
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Transformers For Measuring Instruments (AREA)
- Measurement Of Current Or Voltage (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US73478905P | 2005-11-09 | 2005-11-09 | |
PCT/US2006/042960 WO2007056140A2 (en) | 2005-11-09 | 2006-11-02 | Current transformer and electric energy meter |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1125698A1 true HK1125698A1 (en) | 2009-08-14 |
Family
ID=38023831
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK09104218.9A HK1125698A1 (en) | 2005-11-09 | 2009-05-07 | Current transformer and electric energy meter |
Country Status (8)
Country | Link |
---|---|
US (1) | US7656149B2 (ja) |
EP (1) | EP1946126A4 (ja) |
JP (1) | JP4694629B2 (ja) |
KR (1) | KR101192830B1 (ja) |
CN (1) | CN101305284B (ja) |
HK (1) | HK1125698A1 (ja) |
TW (1) | TWI383570B (ja) |
WO (1) | WO2007056140A2 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7928722B2 (en) | 2009-02-20 | 2011-04-19 | Square D Company | Apparatus and method for voltage sensing in electrical metering systems |
EP2686690B1 (en) * | 2011-03-18 | 2017-06-14 | ABB Research Ltd. | Method and device for linearizing a transformer |
KR101459336B1 (ko) * | 2014-03-04 | 2014-11-07 | (주)테라에너지시스템 | 단위 변류기 유닛 및 이를 이용한 출력 전력을 선형적으로 조절하기 위한 전자기 유도 방식 전원 공급 장치 |
CN105510742B (zh) * | 2015-12-08 | 2018-03-27 | 云南电力试验研究院(集团)有限公司 | 一种利用低频电源对变压器伏安特性测试的试验方法和分析计算方法 |
KR101796270B1 (ko) * | 2016-03-04 | 2017-11-10 | 한전케이디엔 주식회사 | 옥외용 비접촉식 커플러 |
CN108459193B (zh) * | 2018-04-04 | 2020-09-11 | 北京智芯微电子科技有限公司 | 交变电流测量装置 |
CN110619991A (zh) * | 2018-06-20 | 2019-12-27 | 特变电工衡阳变压器有限公司 | 一种适用于多频率的试验变压器 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4274052A (en) * | 1979-08-13 | 1981-06-16 | Bell Telephone Laboratories, Incorporated | Current meter using core saturation |
US4847554A (en) * | 1987-03-04 | 1989-07-11 | Sangamo Weston, Inc. | Current measuring and magnetic core compensating apparatus and method |
GB2232493B (en) * | 1989-05-02 | 1993-06-16 | Polymeters Response Internatio | Prevention of dc saturation in designs of static electricity meter employing integral current transformers |
DE59907740D1 (de) * | 1998-09-17 | 2003-12-18 | Vacuumschmelze Gmbh | Stromwandler mit gleichstromtoleranz |
JP2001033494A (ja) * | 1999-07-15 | 2001-02-09 | Toshiba Kyaria Kk | 交流電流検出装置 |
US6583411B1 (en) * | 2000-09-13 | 2003-06-24 | Europaisches Laboratorium Für Molekularbiologie (Embl) | Multiple local probe measuring device and method |
US7244481B2 (en) * | 2001-06-18 | 2007-07-17 | Viskase Companies, Inc. | Nylon food casing having a barrier core layer |
US20030080847A1 (en) | 2001-10-27 | 2003-05-01 | Radzelovage James G. | Low voltage, high current power transformer |
US6984979B1 (en) * | 2003-02-01 | 2006-01-10 | Edel Thomas G | Measurement and control of magnetomotive force in current transformers and other magnetic bodies |
CA2484742A1 (en) * | 2004-09-28 | 2006-03-28 | Veris Industries, Llc | Electricity metering with a current transformer |
-
2006
- 2006-11-02 WO PCT/US2006/042960 patent/WO2007056140A2/en active Search and Examination
- 2006-11-02 KR KR1020087011294A patent/KR101192830B1/ko not_active IP Right Cessation
- 2006-11-02 JP JP2008540088A patent/JP4694629B2/ja not_active Expired - Fee Related
- 2006-11-02 CN CN2006800416311A patent/CN101305284B/zh not_active Expired - Fee Related
- 2006-11-02 EP EP06827455A patent/EP1946126A4/en not_active Ceased
- 2006-11-09 TW TW095141519A patent/TWI383570B/zh not_active IP Right Cessation
-
2008
- 2008-08-13 US US12/222,667 patent/US7656149B2/en not_active Expired - Fee Related
-
2009
- 2009-05-07 HK HK09104218.9A patent/HK1125698A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP2009515364A (ja) | 2009-04-09 |
KR20080068849A (ko) | 2008-07-24 |
US20090021237A1 (en) | 2009-01-22 |
WO2007056140A2 (en) | 2007-05-18 |
CN101305284B (zh) | 2011-06-08 |
US7656149B2 (en) | 2010-02-02 |
EP1946126A2 (en) | 2008-07-23 |
WO2007056140A3 (en) | 2007-11-08 |
EP1946126A4 (en) | 2012-06-13 |
CN101305284A (zh) | 2008-11-12 |
KR101192830B1 (ko) | 2012-10-18 |
TWI383570B (zh) | 2013-01-21 |
TW200735515A (en) | 2007-09-16 |
JP4694629B2 (ja) | 2011-06-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |
Effective date: 20151102 |