FI104520B - Med strömdelare försedd strömmättransformator - Google Patents
Med strömdelare försedd strömmättransformator Download PDFInfo
- Publication number
- FI104520B FI104520B FI964948A FI964948A FI104520B FI 104520 B FI104520 B FI 104520B FI 964948 A FI964948 A FI 964948A FI 964948 A FI964948 A FI 964948A FI 104520 B FI104520 B FI 104520B
- Authority
- FI
- Finland
- Prior art keywords
- current
- transformer
- divider
- current divider
- primary conductor
- Prior art date
Links
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
- H01F38/30—Constructions
-
- 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
- G01R15/146—Measuring arrangements for current not covered by other subgroups of G01R15/14, e.g. using current dividers, shunts, or measuring a voltage drop
-
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/20—Modifications of basic electric elements for use in electric measuring instruments; Structural combinations of such elements with such instruments
- G01R1/203—Resistors used for electric measuring, e.g. decade resistors standards, resistors for comparators, series resistors, shunts
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)
- Regulation Of General Use Transformers (AREA)
- Ac-Ac Conversion (AREA)
- Housings And Mounting Of Transformers (AREA)
- Measurement Of Current Or Voltage (AREA)
Claims (4)
1. Med strömdelare försedd strömmättransformator (100), som omfattar en ström-delare (111), som bestär av en primärledningsdel (lila) och en förbiströmningsdel 5 (111b,111b’), vilken strömmättransformators (100) magnetkrets bestär av en kärna (113) av en strömtransformator (112) och en sekundärkrets (114), och vilken förbiströmningsdel (11 Ib, 11 Ib’) av strömdelaren (111) är bildad elektriskt symmetrisk, kännetecknad därav, att magnetkretsen av strömmättransformatorn (100) är bildad symmetrisk med avseende pä ett yttre magnetfält (</>e). 10
2. Strömmättransformator enligt patentkravet 1, kännetecknad därav, att primärledningsdelen (lila) av strömdelaren (111) är placerad symmetriskt med avsende pä magnetkretsen av strömmättransformatorn (100).
3. Strömmättransformator enligt patentkravet 1 eller 2, kännetecknad därav, att förbiströmningsdelen (11 Ib, 11 Ib’) av strömdelaren (111) bestär av ätminstone tvä strömningsgrenar.
4. Strömmättransformator enligt nägot av patentkraven 1-3, kännetecknad 20 därav, att primärledningsdelen (lila) av strömdelaren (111) bestär av ätminstone en strömningsgren. « • · · • · · · • ♦ ♦ • · · ·»· • · » • · 1 • ♦ ♦ • » » • · · • · · «·« • « · • · · t • · · ·
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI964948A FI104520B (sv) | 1996-12-11 | 1996-12-11 | Med strömdelare försedd strömmättransformator |
DK97660137T DK0848395T3 (da) | 1996-12-11 | 1997-12-02 | Strömmålertransformer forsynet med en strömdeler |
EP97660137A EP0848395B1 (en) | 1996-12-11 | 1997-12-02 | Current-meter transformer provided with a current divider |
DE69727896T DE69727896T2 (de) | 1996-12-11 | 1997-12-02 | Mit einem Stromteiler versehener Transformator zur Strommessung |
AT97660137T ATE261181T1 (de) | 1996-12-11 | 1997-12-02 | Mit einem stromteiler versehener transformator zur strommessung |
NZ329349A NZ329349A (en) | 1996-12-11 | 1997-12-08 | Current meter transformer with symmetric magnetic and current divider circuits |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI964948 | 1996-12-11 | ||
FI964948A FI104520B (sv) | 1996-12-11 | 1996-12-11 | Med strömdelare försedd strömmättransformator |
Publications (3)
Publication Number | Publication Date |
---|---|
FI964948A0 FI964948A0 (sv) | 1996-12-11 |
FI964948A FI964948A (sv) | 1998-06-12 |
FI104520B true FI104520B (sv) | 2000-02-15 |
Family
ID=8547246
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI964948A FI104520B (sv) | 1996-12-11 | 1996-12-11 | Med strömdelare försedd strömmättransformator |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0848395B1 (sv) |
AT (1) | ATE261181T1 (sv) |
DE (1) | DE69727896T2 (sv) |
DK (1) | DK0848395T3 (sv) |
FI (1) | FI104520B (sv) |
NZ (1) | NZ329349A (sv) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009033126B4 (de) * | 2009-07-15 | 2011-05-05 | Emh Metering Gmbh & Co. Kg | Stromwandler für einen elektronischen Elektrizitätszähler |
JP5778541B2 (ja) * | 2011-09-30 | 2015-09-16 | 株式会社サンコーシヤ | サージ防護デバイス、及びサージ防護デバイスの管理システム |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH658929A5 (de) * | 1982-10-28 | 1986-12-15 | Landis & Gyr Ag | Stromteiler fuer messwandler. |
CH660537A5 (de) * | 1983-03-02 | 1987-04-30 | Landis & Gyr Ag | Messwandler zum messen eines stromes. |
US5400006A (en) * | 1993-04-23 | 1995-03-21 | Schlumberger Industries | Current transformer with plural part core |
US5451865A (en) * | 1994-02-25 | 1995-09-19 | General Electric Company | Method and apparatus for sensing an input current with a bridge circuit |
DE19535551C2 (de) * | 1995-09-25 | 1997-10-02 | Siemens Ag | Stromwandleranordnung mit einem Shunt |
-
1996
- 1996-12-11 FI FI964948A patent/FI104520B/sv not_active IP Right Cessation
-
1997
- 1997-12-02 EP EP97660137A patent/EP0848395B1/en not_active Expired - Lifetime
- 1997-12-02 DE DE69727896T patent/DE69727896T2/de not_active Expired - Lifetime
- 1997-12-02 DK DK97660137T patent/DK0848395T3/da active
- 1997-12-02 AT AT97660137T patent/ATE261181T1/de not_active IP Right Cessation
- 1997-12-08 NZ NZ329349A patent/NZ329349A/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DK0848395T3 (da) | 2004-08-16 |
ATE261181T1 (de) | 2004-03-15 |
FI964948A (sv) | 1998-06-12 |
FI964948A0 (sv) | 1996-12-11 |
EP0848395A3 (en) | 1998-07-08 |
NZ329349A (en) | 1998-05-27 |
DE69727896D1 (de) | 2004-04-08 |
EP0848395A2 (en) | 1998-06-17 |
EP0848395B1 (en) | 2004-03-03 |
DE69727896T2 (de) | 2004-07-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MA | Patent expired |