GB1459176A - Overcurrent protective apparatus for a power circuit - Google Patents

Overcurrent protective apparatus for a power circuit

Info

Publication number
GB1459176A
GB1459176A GB5035172A GB5035172A GB1459176A GB 1459176 A GB1459176 A GB 1459176A GB 5035172 A GB5035172 A GB 5035172A GB 5035172 A GB5035172 A GB 5035172A GB 1459176 A GB1459176 A GB 1459176A
Authority
GB
United Kingdom
Prior art keywords
blade
contact
fixed
stop
armature
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
GB5035172A
Other languages
English (en)
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.)
Schneider Electric USA Inc
Original Assignee
Square D Co
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 Square D Co filed Critical Square D Co
Priority to GB5035172A priority Critical patent/GB1459176A/en
Priority to CA184,269A priority patent/CA1005112A/en
Priority to ZA738345*A priority patent/ZA738345B/xx
Priority to US00410927A priority patent/US3851216A/en
Priority to FR7338884A priority patent/FR2213609B1/fr
Priority to DE2354594A priority patent/DE2354594C3/de
Priority to IT70242/73A priority patent/IT999726B/it
Publication of GB1459176A publication Critical patent/GB1459176A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02H3/08—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 excess current
    • H02H3/093—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 excess current with timing means
    • 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
    • H02H3/02—Details
    • H02H3/06—Details with automatic reconnection
    • 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
    • H02H3/34—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 of a three-phase system

Landscapes

  • Protection Of Generators And Motors (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Breakers (AREA)
GB5035172A 1972-11-01 1972-11-01 Overcurrent protective apparatus for a power circuit Expired GB1459176A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB5035172A GB1459176A (en) 1972-11-01 1972-11-01 Overcurrent protective apparatus for a power circuit
CA184,269A CA1005112A (en) 1972-11-01 1973-10-25 Over-current protective apparatus for a power circuit
ZA738345*A ZA738345B (en) 1972-11-01 1973-10-29 An over-current protective apparatus for a power circuit
US00410927A US3851216A (en) 1972-11-01 1973-10-29 Over-current protective apparatus for a power circuit
FR7338884A FR2213609B1 (enExample) 1972-11-01 1973-10-31
DE2354594A DE2354594C3 (de) 1972-11-01 1973-10-31 Schutzschaltungsanordnung zum Abschalten eines mehrphasigen Wechselstromverbrauchers von einer Wechselstromquelle beim Auftreten von Übelastungen
IT70242/73A IT999726B (it) 1972-11-01 1973-11-05 Apparecchio per la protezione di circuiti elettrici di potenza da sovracorrente

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5035172A GB1459176A (en) 1972-11-01 1972-11-01 Overcurrent protective apparatus for a power circuit

Publications (1)

Publication Number Publication Date
GB1459176A true GB1459176A (en) 1976-12-22

Family

ID=10455606

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5035172A Expired GB1459176A (en) 1972-11-01 1972-11-01 Overcurrent protective apparatus for a power circuit

Country Status (7)

Country Link
US (1) US3851216A (enExample)
CA (1) CA1005112A (enExample)
DE (1) DE2354594C3 (enExample)
FR (1) FR2213609B1 (enExample)
GB (1) GB1459176A (enExample)
IT (1) IT999726B (enExample)
ZA (1) ZA738345B (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2480514A1 (fr) * 1980-04-15 1981-10-16 Westinghouse Electric Corp Appareil coupe-circuit comportant un dispositif de declenchement de depassement de temperature
FR2509098A1 (fr) * 1981-07-02 1983-01-07 Carrier Corp Dispositif de protection de moteur a courant alternatif
GB2319909A (en) * 1996-11-28 1998-06-03 Gec Marconi Aerospace Limited Monitoring operation of a three phase electric motor
RU2137276C1 (ru) * 1997-10-14 1999-09-10 Акционерное общество закрытого типа "Контактор" Устройство для максимальной токовой защиты электроустановки переменного тока

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955121A (en) * 1974-09-16 1976-05-04 Vahey Thomas J Short-circuit protective systems
US3959695A (en) * 1975-04-29 1976-05-25 Westinghouse Electric Corporation Circuit interrupter with ground fault trip control
US4027202A (en) * 1975-12-19 1977-05-31 Robertshaw Controls Company Voltage protection circuit
US4048663A (en) * 1977-10-10 1977-09-13 Square D Company Solid state overload relay transformer circuit
DE2704337A1 (de) * 1976-02-02 1977-08-04 Square D Co Ueberstromschutzgeraet fuer einen wechselstrommotor
US4041540A (en) * 1976-02-02 1977-08-09 Square D Company Solid state overload relay circuit
US4240072A (en) * 1979-03-19 1980-12-16 Research Products Corporation Load indicator for an air cleaner
US4333119A (en) * 1980-04-28 1982-06-01 Purex Corporation Power monitor system
DE3034904A1 (de) * 1980-09-16 1982-04-29 Marine Safe Electronics of Canada Ltd., Concord, Ontario Niedrigwicklungswiderstand-schutzsystem
US4394607A (en) * 1981-05-08 1983-07-19 Stanley Automatic Openers Control systems for gates and the like including a motor overload monitoring circuit
DE3228954C2 (de) * 1982-08-03 1985-11-21 Loher Gmbh, 8399 Ruhstorf Schutzeinrichtung für Asynchron-Motoren
DE3237800C2 (de) * 1982-08-03 1986-09-11 Loher Gmbh, 8399 Ruhstorf Schutzeinrichtung für Asynchron-Motoren
GB2147432B (en) * 1983-09-28 1987-01-14 Aisin Seiki Controlling movement
US4731728A (en) * 1985-01-10 1988-03-15 Pitney Bowes Inc. Postage meter with means for preventing unauthorized postage printing
US5386183A (en) * 1990-01-03 1995-01-31 Siemens Energy & Automation, Inc. Method and apparatus for sensing a ground fault in a motor control system
US5587864A (en) * 1994-04-11 1996-12-24 Ford Motor Company Short circuit and ground fault protection for an electrical system
JPH11252990A (ja) * 1998-02-27 1999-09-17 Fanuc Ltd Ｐｗｍ方式によるモータ制御装置
TW420893B (en) * 1999-01-25 2001-02-01 Lam Sheir Chun Circuit breaker
JP2002247749A (ja) * 2001-02-16 2002-08-30 Fuji Electric Co Ltd 過負荷電流保安装置
US7983014B2 (en) * 2006-07-19 2011-07-19 Hitoshi Kijima Disconnector and overvoltage protection device
CN104538233B (zh) * 2014-12-25 2017-04-19 广州供电局有限公司变电管理一所 变电站电动刀闸状态监测预警系统及方法
US11916372B2 (en) 2019-10-07 2024-02-27 Belimo Holding Ag Motor protection device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE949674C (de) * 1953-10-30 1956-09-27 Nordwestdeutscher Rundfunk Elektronisches Schaltgeraet
FR1316653A (fr) * 1961-12-20 1963-02-01 Merlin Gerin Dispositif de protection d'un réseau polyphasé contre les surintensités
GB1129178A (en) * 1966-07-06 1968-10-02 Baldwin & Francis Holdings Ltd Improvements relating to overload protection in electric supply systems
US3465206A (en) * 1966-12-05 1969-09-02 Litton Systems Inc Time delay circuit breaker with short-circuit bypass
US3463998A (en) * 1966-12-27 1969-08-26 Electric Machinery Mfg Co Overvoltage control
US3582982A (en) * 1969-08-26 1971-06-01 Cutler Hammer Inc Electronic motor overload relay control system
DE2043010C3 (de) * 1970-08-29 1979-08-23 Siemens Ag, 1000 Berlin U. 8000 Muenchen Abfallverzögertes Zeitrelais
US3742302A (en) * 1971-10-12 1973-06-26 Carrier Corp Motor relay protection for refrigerant compressor motors

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2480514A1 (fr) * 1980-04-15 1981-10-16 Westinghouse Electric Corp Appareil coupe-circuit comportant un dispositif de declenchement de depassement de temperature
FR2509098A1 (fr) * 1981-07-02 1983-01-07 Carrier Corp Dispositif de protection de moteur a courant alternatif
GB2319909A (en) * 1996-11-28 1998-06-03 Gec Marconi Aerospace Limited Monitoring operation of a three phase electric motor
GB2319909B (en) * 1996-11-28 2001-06-06 Gec Marconi Aerospace Ltd Electric motor monitoring arrangement
RU2137276C1 (ru) * 1997-10-14 1999-09-10 Акционерное общество закрытого типа "Контактор" Устройство для максимальной токовой защиты электроустановки переменного тока

Also Published As

Publication number Publication date
ZA738345B (en) 1974-08-28
IT999726B (it) 1976-03-10
FR2213609B1 (enExample) 1979-05-11
DE2354594C3 (de) 1981-11-05
FR2213609A1 (enExample) 1974-08-02
CA1005112A (en) 1977-02-08
DE2354594B2 (de) 1981-02-19
DE2354594A1 (de) 1974-05-09
US3851216A (en) 1974-11-26

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee