CH535482A - Summenstromwandler, insbesondere für einen Fehlerstromschutzschalter - Google Patents

Summenstromwandler, insbesondere für einen Fehlerstromschutzschalter

Info

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
Application number
CH973772A
Other languages
English (en)
Inventor
Joseph Misencik John
Original Assignee
Westinghouse Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of CH535482A publication Critical patent/CH535482A/de

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)
CH973772A 1971-06-30 1972-06-29 Summenstromwandler, insbesondere für einen Fehlerstromschutzschalter CH535482A (de)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0674333A2 (de) * 1994-03-23 1995-09-27 Valentron Ag Fehlerstromschutzschalter

Families Citing this family (15)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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