CH535482A - Summenstromwandler, insbesondere für einen Fehlerstromschutzschalter - Google Patents
Summenstromwandler, insbesondere für einen FehlerstromschutzschalterInfo
- Publication number
- CH535482A CH535482A CH973772A CH973772A CH535482A CH 535482 A CH535482 A CH 535482A CH 973772 A CH973772 A CH 973772A CH 973772 A CH973772 A CH 973772A CH 535482 A CH535482 A CH 535482A
- Authority
- CH
- Switzerland
- Prior art keywords
- circuit breaker
- summation
- current transformer
- current circuit
- residual
- 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
-
- 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
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F2027/2833—Wires using coaxial cable as wire
-
- 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
- H01F2038/305—Constructions with toroidal magnetic core
-
- 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
- H01H2083/148—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 with primary windings formed of rigid copper conductors
-
- 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15833671A | 1971-06-30 | 1971-06-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH535482A true CH535482A (de) | 1973-03-31 |
Family
ID=22567656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH973772A CH535482A (de) | 1971-06-30 | 1972-06-29 | Summenstromwandler, insbesondere für einen Fehlerstromschutzschalter |
Country Status (5)
Country | Link |
---|---|
US (1) | US3725741A (de) |
AT (1) | AT311467B (de) |
CA (1) | CA949659A (de) |
CH (1) | CH535482A (de) |
DE (1) | DE2231431A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0674333A2 (de) * | 1994-03-23 | 1995-09-27 | Valentron Ag | Fehlerstromschutzschalter |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4034266A (en) * | 1975-08-29 | 1977-07-05 | Westinghouse Electric Corporation | Electric wall receptacle with ground fault protection |
FR2428308A1 (fr) * | 1978-06-08 | 1980-01-04 | Mayer Ferdy | Transformateur differentiel de relais de protection d'installation electrique |
US4591942A (en) * | 1984-12-07 | 1986-05-27 | General Electric Company | Current sensing transformer assembly |
CH667557A5 (de) * | 1985-03-14 | 1988-10-14 | Sprecher Energie Ag | Hochspannungsschaltanlage. |
FR2581264B1 (fr) * | 1985-04-26 | 1993-04-30 | Etude Realisa Disjoncteurs | Transformateur de sommation et processus de sa fabrication |
WO1989010621A1 (en) * | 1988-04-28 | 1989-11-02 | Fmtt, Inc. | Matrix transformer having high dielectric isolation |
KR100206373B1 (ko) * | 1994-12-30 | 1999-07-01 | 이형도 | 플라이백 트랜스포머의 동기케이블 결합장치 |
US5684683A (en) * | 1996-02-09 | 1997-11-04 | Wisconsin Alumni Research Foundation | DC-to-DC power conversion with high current output |
US6087916A (en) * | 1996-07-30 | 2000-07-11 | Soft Switching Technologies, Inc. | Cooling of coaxial winding transformers in high power applications |
US6760206B2 (en) | 2001-03-16 | 2004-07-06 | Cooper Industries, Inc. | Current sensor supporting structure |
GB2473014B (en) * | 2009-08-27 | 2014-07-16 | Sean Christopher Ganley | Single and Multi Phase Current Sensor Combined with a Current Transformer |
US8269592B1 (en) * | 2010-05-05 | 2012-09-18 | Lockheed Martin Corporation | Pulse transformer |
CN106710857B (zh) * | 2015-07-31 | 2018-12-11 | 西门子公司 | 具有多匝导电杆的电流互感器 |
US10622800B2 (en) | 2017-08-09 | 2020-04-14 | Schneider Electric USA, Inc. | Integrated arc fault and ground fault current sensing package |
US10852326B2 (en) * | 2017-08-09 | 2020-12-01 | Schneider Electric USA, Inc. | Differential current sensing bussing method |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1866345A (en) * | 1929-12-19 | 1932-07-05 | Westinghouse Electric & Mfg Co | Current transformer with primary parallel resistance and flux leakage path |
US2531820A (en) * | 1943-02-03 | 1950-11-28 | Rca Corp | Voltage transformer |
US2679025A (en) * | 1952-05-28 | 1954-05-18 | Rca Corp | Magnetic testing system |
US2849694A (en) * | 1954-07-12 | 1958-08-26 | Gen Electric | Current transformer |
GB833364A (en) * | 1955-07-18 | 1960-04-21 | Gen Electric | Improvements in and relating to high voltage current transformers |
BE568986A (de) * | 1957-07-24 | |||
FR1288166A (fr) * | 1961-02-08 | 1962-03-24 | Comp Generale Electricite | Perfectionnements aux transformateurs de mesure pour haute tension |
US3154757A (en) * | 1961-08-02 | 1964-10-27 | F R Hannon & Sons Inc | Transformer with secondary winding suspended within primary core |
US3614694A (en) * | 1969-09-17 | 1971-10-19 | Atomic Energy Commission | Coaxial cable high-voltage pulse isolation transformer |
-
1971
- 1971-06-30 US US00158336A patent/US3725741A/en not_active Expired - Lifetime
-
1972
- 1972-05-17 CA CA142,370A patent/CA949659A/en not_active Expired
- 1972-06-27 DE DE2231431A patent/DE2231431A1/de active Pending
- 1972-06-29 CH CH973772A patent/CH535482A/de not_active IP Right Cessation
- 1972-06-30 AT AT566072A patent/AT311467B/de not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0674333A2 (de) * | 1994-03-23 | 1995-09-27 | Valentron Ag | Fehlerstromschutzschalter |
DE4410076A1 (de) * | 1994-03-23 | 1995-09-28 | Valentron Ag | Fehlerstromschutzschalter |
EP0674333A3 (de) * | 1994-03-23 | 1998-03-25 | Valentron Ag | Fehlerstromschutzschalter |
Also Published As
Publication number | Publication date |
---|---|
DE2231431A1 (de) | 1973-01-11 |
AT311467B (de) | 1973-11-26 |
US3725741A (en) | 1973-04-03 |
CA949659A (en) | 1974-06-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |