ZA200101420B - Dual-rated current transformer circuit. - Google Patents
Dual-rated current transformer circuit. Download PDFInfo
- Publication number
- ZA200101420B ZA200101420B ZA200101420A ZA200101420A ZA200101420B ZA 200101420 B ZA200101420 B ZA 200101420B ZA 200101420 A ZA200101420 A ZA 200101420A ZA 200101420 A ZA200101420 A ZA 200101420A ZA 200101420 B ZA200101420 B ZA 200101420B
- Authority
- ZA
- South Africa
- Prior art keywords
- current
- transformer
- transformer circuit
- circuit
- primary
- Prior art date
Links
- 239000000696 magnetic material Substances 0.000 claims description 8
- 230000005284 excitation Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 description 8
- 230000001681 protective effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000005291 magnetic effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
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
- H01F38/32—Circuit arrangements
-
- 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
- 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
- H01F27/38—Auxiliary core members; Auxiliary coils or windings
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/343,456 US6198268B1 (en) | 1999-06-30 | 1999-06-30 | Dual-rated current transformer circuit having at least two input circuits |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA200101420B true ZA200101420B (en) | 2002-05-20 |
Family
ID=23346199
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA200101420A ZA200101420B (en) | 1999-06-30 | 2001-02-20 | Dual-rated current transformer circuit. |
Country Status (14)
Country | Link |
---|---|
US (1) | US6198268B1 (fr) |
EP (1) | EP1108260B1 (fr) |
JP (1) | JP4846149B2 (fr) |
KR (1) | KR100737061B1 (fr) |
CN (1) | CN1191595C (fr) |
AT (1) | ATE532192T1 (fr) |
AU (1) | AU758432B2 (fr) |
BR (1) | BRPI0006851B1 (fr) |
CA (1) | CA2340775C (fr) |
HU (1) | HU229697B1 (fr) |
NO (1) | NO321747B1 (fr) |
PL (1) | PL194110B1 (fr) |
WO (1) | WO2001001426A1 (fr) |
ZA (1) | ZA200101420B (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105067861A (zh) * | 2015-08-22 | 2015-11-18 | 安徽千恩智能科技股份有限公司 | 分流式电流取样互感器 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB372404A (en) * | 1931-02-09 | 1932-05-09 | British Thomson Houston Co Ltd | Improvements in electrical measuring or relay apparatus, particularly for high potential circuits |
US2096801A (en) * | 1937-01-14 | 1937-10-26 | Bell Telephone Labor Inc | Power transformer |
US4140961A (en) * | 1977-06-21 | 1979-02-20 | Mitsubishi Denki Kabushiki Kaisha | Shunt circuit for an insulation type current transformer to adapt to a wide-band of frequency |
DE2833203A1 (de) * | 1978-07-27 | 1980-02-07 | Siemens Ag | Messwandler mit einer von einem zu messenden strom durchflossenen primaerwicklung |
US4301491A (en) | 1980-01-21 | 1981-11-17 | Gould Inc. | Combined fault current and applied voltage tripping for solid state trip circuit and particular current transformer construction |
CA1211169A (fr) * | 1984-04-03 | 1986-09-09 | Nicolai Alexandrov | Transformateur de distribution a circuit magnetique enroule |
US5061896A (en) * | 1985-09-03 | 1991-10-29 | United Technologies Corporation | Variable transformer to detect linear displacement with constant output amplitude |
FR2633093B1 (fr) * | 1988-06-17 | 1992-02-28 | Avocat Jean Paul | Transformateur electrique de mesure |
JPH0282020A (ja) * | 1988-09-17 | 1990-03-22 | Hitachi Heating Appliance Co Ltd | 加熱調理器 |
JPH0282020U (fr) * | 1988-12-15 | 1990-06-25 | ||
JPH067536B2 (ja) * | 1990-05-31 | 1994-01-26 | 株式会社高岳製作所 | ワイドレンジ変流器 |
US5015983A (en) | 1990-06-18 | 1991-05-14 | General Electric Company | Compact circuit interrupter having multiple ampere ratings |
US5214407A (en) * | 1991-11-06 | 1993-05-25 | Hewlett-Packard Company | High performance current shunt |
JP2690647B2 (ja) * | 1991-11-08 | 1997-12-10 | 三菱電機株式会社 | 誤差補償型変圧器 |
US5214470A (en) * | 1992-04-09 | 1993-05-25 | Xerox Corporation | Method and apparatus for compensating for dirt or etched areas on a document platen |
JPH06174754A (ja) * | 1992-12-03 | 1994-06-24 | Mitsubishi Electric Corp | ワイドレンジ電流センサ |
JPH06242147A (ja) * | 1993-02-19 | 1994-09-02 | Mitsubishi Electric Corp | 変流装置 |
-
1999
- 1999-06-30 US US09/343,456 patent/US6198268B1/en not_active Expired - Lifetime
-
2000
- 2000-06-29 AT AT00946885T patent/ATE532192T1/de active
- 2000-06-29 JP JP2001506560A patent/JP4846149B2/ja not_active Expired - Fee Related
- 2000-06-29 CN CNB008012792A patent/CN1191595C/zh not_active Expired - Fee Related
- 2000-06-29 WO PCT/US2000/017809 patent/WO2001001426A1/fr active IP Right Grant
- 2000-06-29 AU AU60575/00A patent/AU758432B2/en not_active Ceased
- 2000-06-29 HU HU0103335A patent/HU229697B1/hu not_active IP Right Cessation
- 2000-06-29 BR BRPI0006851A patent/BRPI0006851B1/pt not_active IP Right Cessation
- 2000-06-29 CA CA002340775A patent/CA2340775C/fr not_active Expired - Fee Related
- 2000-06-29 KR KR1020017002484A patent/KR100737061B1/ko not_active IP Right Cessation
- 2000-06-29 EP EP00946885A patent/EP1108260B1/fr not_active Expired - Lifetime
- 2000-06-29 PL PL00346266A patent/PL194110B1/pl unknown
-
2001
- 2001-02-20 ZA ZA200101420A patent/ZA200101420B/en unknown
- 2001-02-27 NO NO20010993A patent/NO321747B1/no not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HU229697B1 (en) | 2014-05-28 |
EP1108260A4 (fr) | 2009-03-25 |
JP4846149B2 (ja) | 2011-12-28 |
KR100737061B1 (ko) | 2007-07-06 |
US6198268B1 (en) | 2001-03-06 |
WO2001001426A1 (fr) | 2001-01-04 |
HUP0103335A3 (en) | 2004-01-28 |
BRPI0006851B1 (pt) | 2016-01-26 |
ATE532192T1 (de) | 2011-11-15 |
BR0006851A (pt) | 2001-07-03 |
CA2340775A1 (fr) | 2001-01-04 |
CN1191595C (zh) | 2005-03-02 |
AU6057500A (en) | 2001-01-31 |
EP1108260A1 (fr) | 2001-06-20 |
KR20030044740A (ko) | 2003-06-09 |
JP2003503836A (ja) | 2003-01-28 |
NO20010993L (no) | 2001-02-27 |
HUP0103335A2 (hu) | 2001-12-28 |
CN1316090A (zh) | 2001-10-03 |
NO321747B1 (no) | 2006-06-26 |
PL194110B1 (pl) | 2007-04-30 |
NO20010993D0 (no) | 2001-02-27 |
PL346266A1 (en) | 2002-01-28 |
EP1108260B1 (fr) | 2011-11-02 |
AU758432B2 (en) | 2003-03-20 |
CA2340775C (fr) | 2008-09-30 |
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