CA949659A - Differential transformer mounting arrangement particularly for ground fault interrupter apparatus - Google Patents

Differential transformer mounting arrangement particularly for ground fault interrupter apparatus

Info

Publication number
CA949659A
CA949659A CA142,370A CA142370A CA949659A CA 949659 A CA949659 A CA 949659A CA 142370 A CA142370 A CA 142370A CA 949659 A CA949659 A CA 949659A
Authority
CA
Canada
Prior art keywords
ground fault
mounting arrangement
differential transformer
fault interrupter
transformer mounting
Prior art date
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
Application number
CA142,370A
Other versions
CA142370S (en
Inventor
John J. Misencik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CBS Corp
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
Application granted granted Critical
Publication of CA949659A publication Critical patent/CA949659A/en
Expired legal-status Critical Current

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 unbalance 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 unbalance 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 unbalance 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 unbalance 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 unbalance 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)
CA142,370A 1971-06-30 1972-05-17 Differential transformer mounting arrangement particularly for ground fault interrupter apparatus Expired CA949659A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15833671A 1971-06-30 1971-06-30

Publications (1)

Publication Number Publication Date
CA949659A true CA949659A (en) 1974-06-18

Family

ID=22567656

Family Applications (1)

Application Number Title Priority Date Filing Date
CA142,370A Expired CA949659A (en) 1971-06-30 1972-05-17 Differential transformer mounting arrangement particularly for ground fault interrupter apparatus

Country Status (5)

Country Link
US (1) US3725741A (en)
AT (1) AT311467B (en)
CA (1) CA949659A (en)
CH (1) CH535482A (en)
DE (1) DE2231431A1 (en)

Families Citing this family (16)

* 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 (en) * 1978-06-08 1980-01-04 Mayer Ferdy DIFFERENTIAL TRANSFORMER OF ELECTRICAL PROTECTION RELAYS
US4591942A (en) * 1984-12-07 1986-05-27 General Electric Company Current sensing transformer assembly
CH667557A5 (en) * 1985-03-14 1988-10-14 Sprecher Energie Ag HIGH VOLTAGE SWITCHGEAR.
FR2581264B1 (en) * 1985-04-26 1993-04-30 Etude Realisa Disjoncteurs SUMMARY TRANSFORMER AND MANUFACTURING PROCESS
EP0377691A4 (en) * 1988-04-28 1990-10-10 Fmtt, Inc Matrix transformer having high dielectric isolation
DE4410076A1 (en) * 1994-03-23 1995-09-28 Valentron Ag Residual current circuit breaker
KR100206373B1 (en) * 1994-12-30 1999-07-01 이형도 Synchronous cable coupling structure of flyback transformer
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 (en) * 2015-07-31 2018-12-11 西门子公司 Current transformer with multiturn conducting rod
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
NL229257A (en) * 1957-07-24
FR1288166A (en) * 1961-02-08 1962-03-24 Comp Generale Electricite Improvements to high voltage instrument transformers
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

Also Published As

Publication number Publication date
DE2231431A1 (en) 1973-01-11
AT311467B (en) 1973-11-26
US3725741A (en) 1973-04-03
CH535482A (en) 1973-03-31

Similar Documents

Publication Publication Date Title
CA951422A (en) Ground fault interrupter apparatus
CA970849A (en) Low leakage isolating transformer for electromedical apparatus
CA949659A (en) Differential transformer mounting arrangement particularly for ground fault interrupter apparatus
CA982199A (en) Total range fault interrupter
CA1035422A (en) Compensated audio transformer circuit
CA993930A (en) Ground fault interrupter device
AU465764B2 (en) Aground fault protective system
CA1005897A (en) Ground fault protective system
AU459318B2 (en) An interrupter device
CA963113A (en) Distribution transformer having static shield
CA958802A (en) Electrical apparatus including a ground fault sensor
CA963568A (en) Leakage current interrupter device
CA920259A (en) Portable ground fault interrupter apparatus
CA1017014A (en) Compensating circuit for semiconductive apparatus
CA934460A (en) Plug-in connection for high-tension installations
CA1031238A (en) Circuit for hydrostatically-driven equipment
CA1001728A (en) Shielding apparatus
CA999901A (en) Circuit breaker for distribution transformer
AU460031B2 (en) Electrical fault location apparatus
CA968452A (en) Ground fault interrupter apparatus with means for detecting a grounded neutral condition
AU478861B2 (en) Ground fault interrupter device
CA869089A (en) Metal-enclosed switchgear
CA869088A (en) Metal-enclosed switchgear
AU473508B2 (en) An escaping equipment
CA887297A (en) Short circuit protection means for semiconductive circuit apparatus