ZA761088B - An improvement in or relating to multipole ground fault circuit breaker - Google Patents

An improvement in or relating to multipole ground fault circuit breaker

Info

Publication number
ZA761088B
ZA761088B ZA761088A ZA761088A ZA761088B ZA 761088 B ZA761088 B ZA 761088B ZA 761088 A ZA761088 A ZA 761088A ZA 761088 A ZA761088 A ZA 761088A ZA 761088 B ZA761088 B ZA 761088B
Authority
ZA
South Africa
Prior art keywords
relating
improvement
circuit breaker
ground fault
fault circuit
Prior art date
Application number
ZA761088A
Other languages
English (en)
Inventor
K Coley
J Misencik
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 ZA761088B publication Critical patent/ZA761088B/xx

Links

Classifications

    • 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
    • H01H83/20—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition
    • H01H83/22—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages
    • H01H83/226—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by excess current as well as by some other abnormal electrical condition the other condition being imbalance of two or more currents or voltages with differential transformer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
    • H02H3/33—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors using summation current transformers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Breakers (AREA)
ZA761088A 1975-03-14 1977-01-03 An improvement in or relating to multipole ground fault circuit breaker ZA761088B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/558,564 US3999103A (en) 1975-03-14 1975-03-14 Multi-pole ground fault circuit breaker

Publications (1)

Publication Number Publication Date
ZA761088B true ZA761088B (en) 1977-02-23

Family

ID=24230022

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA761088A ZA761088B (en) 1975-03-14 1977-01-03 An improvement in or relating to multipole ground fault circuit breaker

Country Status (7)

Country Link
US (1) US3999103A (xx)
JP (2) JPS51115670A (xx)
AU (1) AU502181B2 (xx)
CA (1) CA1058257A (xx)
GB (1) GB1535371A (xx)
IT (1) IT1058421B (xx)
ZA (1) ZA761088B (xx)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4194231A (en) * 1978-03-08 1980-03-18 General Electric Company Dual voltage ground fault protector
DE2834327C2 (de) * 1978-08-04 1983-01-13 Heinrich Kopp Gmbh & Co Kg, 8756 Kahl Elektrischer Vollschutzschalter
US4208688A (en) * 1978-09-13 1980-06-17 Westinghouse Electric Corp. Multipole ground fault circuit interrupter with trip level adjustment
BE880418A (fr) * 1979-03-01 1980-04-01 Ave Belli Andrea Interrupteur magneto-thermique differentiel
US4568899A (en) * 1984-03-27 1986-02-04 Siemens Aktiengesellschaft Ground fault accessory for a molded case circuit breaker
JPS61239532A (ja) * 1985-04-15 1986-10-24 松下電工株式会社 回路しゃ断器
US4686600A (en) * 1985-04-22 1987-08-11 General Electric Company Modular ground fault circuit breaker
US4641217A (en) * 1985-05-31 1987-02-03 General Electric Company Two pole ground fault circuit breaker
US5095398A (en) * 1990-02-12 1992-03-10 Square D Company Electrical circuit breaker protection device
FR2663153B1 (fr) * 1990-06-07 1992-09-11 Legrand Sa Dispositif de declenchement differentiel.
IE920641A1 (en) * 1991-03-27 1992-10-07 Westinghouse Electric Corp Dual wound trip solenoid
US5260676A (en) * 1991-03-27 1993-11-09 Westinghouse Electric Corp. Dual wound trip solenoid
ZA926652B (en) * 1991-09-26 1993-03-16 Westinghouse Electric Corp Circuit breaker with protection against sputtering arc faults
US5432455A (en) * 1992-07-30 1995-07-11 Blades; Frederick K. Method and apparatus for detecting arcing in alternating current power systems by monitoring high-frequency noise
US5434509A (en) * 1992-07-30 1995-07-18 Blades; Frederick K. Method and apparatus for detecting arcing in alternating-current power systems by monitoring high-frequency noise
US5510759A (en) * 1994-06-23 1996-04-23 Eaton Corporation Miniature circuit breaker with ground fault electronics supported by stiff conductors for easy assembly
US5483211A (en) * 1994-06-23 1996-01-09 Eaton Corporation Two-pole compartmentalized ground fault miniature circuit breaker with a single central electronics compartment
US5453723A (en) * 1994-06-23 1995-09-26 Eaton Corporation Two-pole compartmentalized ground fault miniature circuit breaker with increased current rating
US5831498A (en) * 1997-04-30 1998-11-03 Eaton Corporation Molded case circuit breaker with adapter for use with ring lug terminations
DE19919331A1 (de) * 1999-04-28 2000-11-02 Ellenberger & Poensgen Unterspannungsauslöser
US7289306B2 (en) * 2005-02-25 2007-10-30 Huadao Huang Ground fault circuit interrupter containing a dual-function test button
US8035047B2 (en) * 2007-05-22 2011-10-11 Raabe Rodney D Reduced material plug-on jaw with symmetrical spring for a circuit breaker
US8134428B2 (en) * 2008-01-09 2012-03-13 Siemens Industry, Inc. Circuit breaker with electronic sensing and de-latch activation
US9349559B2 (en) * 2009-03-23 2016-05-24 Siemens Industry, Inc. Low-profile electronic circuit breakers, breaker tripping mechanisms, and systems and methods of using same
US8810983B2 (en) * 2009-04-01 2014-08-19 Asco Power Technologies, L.P. Power disconnect system and method
AU2011331913B2 (en) * 2010-11-17 2015-05-14 Safelec Technology Holdings Pty. Ltd. Device and method for providing electrical protection
US8907236B2 (en) 2012-03-21 2014-12-09 Schneider Electric USA, Inc. Floating stationary contact to create stable, low resistance contact joints
US10847333B2 (en) * 2018-09-17 2020-11-24 Siemends Industry, Inc. Circuit breakers including dual triggering devices and methods of operating same
FR3105566B1 (fr) * 2019-12-18 2022-04-08 Schneider Electric Ind Sas Système de protection électrique multipolaire et installation électrique comprenant un tel système
CN112379209B (zh) * 2020-11-02 2022-02-08 广东电网有限责任公司 一种变压器铁芯的性能检测装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3665356A (en) * 1969-04-23 1972-05-23 Rucker Co Differential transformer with balancing means
US3683302A (en) * 1970-12-15 1972-08-08 Fred C Butler Sensor for ground fault interrupter apparatus
US3717792A (en) * 1971-07-23 1973-02-20 Ite Imperial Corp Leakage current interrupter device
US3742305A (en) * 1971-08-13 1973-06-26 Gen Electric Electric shock protector for use with panel assembly
US3745414A (en) * 1972-01-21 1973-07-10 Westinghouse Electric Corp Ground fault circuit interrupter
US3795841A (en) * 1972-07-19 1974-03-05 Gen Electric Shock protecting circuit breaker for two circuits with common neutral
US3855502A (en) * 1973-02-22 1974-12-17 Ite Imperial Corp Ground fault interrupter device
US3858130A (en) * 1973-12-04 1974-12-31 Westinghouse Electric Corp Ground fault circuit breaker with cold temperature bimetal constriction
US3908154A (en) * 1974-09-13 1975-09-23 Ite Imperial Corp Two pole ground fault circuit protector

Also Published As

Publication number Publication date
IT1058421B (it) 1982-04-10
AU1144676A (en) 1977-09-01
US3999103A (en) 1976-12-21
JPS51115670A (en) 1976-10-12
CA1058257A (en) 1979-07-10
AU502181B2 (en) 1979-07-19
JPS6017552U (ja) 1985-02-06
GB1535371A (en) 1978-12-13
JPS6118605Y2 (xx) 1986-06-05

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