FR2291591B1 - - Google Patents
Info
- Publication number
- FR2291591B1 FR2291591B1 FR7406338A FR7406338A FR2291591B1 FR 2291591 B1 FR2291591 B1 FR 2291591B1 FR 7406338 A FR7406338 A FR 7406338A FR 7406338 A FR7406338 A FR 7406338A FR 2291591 B1 FR2291591 B1 FR 2291591B1
- Authority
- FR
- France
- 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
Links
Classifications
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/14—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection
- H01H83/144—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by imbalance of two or more currents or voltages, e.g. for differential protection with differential transformer
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transformers For Measuring Instruments (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7406338A FR2291591A1 (fr) | 1974-02-25 | 1974-02-25 | Circuit magnetique pour detecteur de courant, et detecteur realise avec un tel circuit |
IT6733675A IT1027499B (it) | 1974-02-25 | 1975-02-07 | Circuito magnetico per rivelatore di corrente, e rivelatore realizzato con un tale circuito |
DE19752505761 DE2505761A1 (de) | 1974-02-25 | 1975-02-12 | Magnetkreis sowie strommesser und differenztransformator damit |
JP50022713A JPS50146375A (el) | 1974-02-25 | 1975-02-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7406338A FR2291591A1 (fr) | 1974-02-25 | 1974-02-25 | Circuit magnetique pour detecteur de courant, et detecteur realise avec un tel circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2291591A1 FR2291591A1 (fr) | 1976-06-11 |
FR2291591B1 true FR2291591B1 (el) | 1978-06-16 |
Family
ID=9135404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7406338A Granted FR2291591A1 (fr) | 1974-02-25 | 1974-02-25 | Circuit magnetique pour detecteur de courant, et detecteur realise avec un tel circuit |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPS50146375A (el) |
DE (1) | DE2505761A1 (el) |
FR (1) | FR2291591A1 (el) |
IT (1) | IT1027499B (el) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3140544A1 (de) * | 1981-10-13 | 1983-04-21 | Richard Dr.-Ing. 3300 Braunschweig Friedl | Aktiver stromsensor mit primaerer reduzierwicklung |
JPH0525222Y2 (el) * | 1986-08-30 | 1993-06-25 | ||
ATE134449T1 (de) * | 1993-03-05 | 1996-03-15 | Deutsche Zaehler Gmbh | Stromwandler, insbesondere für einen elektronischen elektrizitätszähler |
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1974
- 1974-02-25 FR FR7406338A patent/FR2291591A1/fr active Granted
-
1975
- 1975-02-07 IT IT6733675A patent/IT1027499B/it active
- 1975-02-12 DE DE19752505761 patent/DE2505761A1/de active Pending
- 1975-02-24 JP JP50022713A patent/JPS50146375A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2505761A1 (de) | 1975-08-28 |
IT1027499B (it) | 1978-11-20 |
JPS50146375A (el) | 1975-11-25 |
FR2291591A1 (fr) | 1976-06-11 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
CD | Change of name or company name | ||
ST | Notification of lapse |