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AU515384B2 - Protection device fora. c. motor circuit - Google Patents
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AU515384B2 - Protection device fora. c. motor circuit - Google Patents

Protection device fora. c. motor circuit

Info

Publication number
AU515384B2
AU515384B2 AU29514/77A AU2951477A AU515384B2 AU 515384 B2 AU515384 B2 AU 515384B2 AU 29514/77 A AU29514/77 A AU 29514/77A AU 2951477 A AU2951477 A AU 2951477A AU 515384 B2 AU515384 B2 AU 515384B2
Authority
AU
Australia
Prior art keywords
protection device
motor circuit
device fora
fora
motor
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
AU29514/77A
Other versions
AU2951477A (en
Inventor
W. R Lemke
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
Priority to US05/654,423 priority Critical patent/US4048663A/en
Priority claimed from US05/654,423 external-priority patent/US4048663A/en
Application filed by Square D Co filed Critical Square D Co
Publication of AU2951477A publication Critical patent/AU2951477A/en
Application granted granted Critical
Publication of AU515384B2 publication Critical patent/AU515384B2/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
    • H02H3/02—Details
    • H02H3/06—Details with automatic reconnection
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • 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
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • H02H3/044—Checking correct functioning of protective arrangements, e.g. by simulating a fault
    • 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
    • H02H3/083—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 for three-phase systems
    • 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
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/08—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors
    • H02H7/085—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for dynamo-electric motors against excessive load
AU29514/77A 1976-02-02 1977-10-10 Protection device fora. c. motor circuit Expired AU515384B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US05/654,423 US4048663A (en) 1977-10-10 1976-02-02 Solid state overload relay transformer circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/654,423 US4048663A (en) 1977-10-10 1976-02-02 Solid state overload relay transformer circuit

Publications (2)

Publication Number Publication Date
AU2951477A AU2951477A (en) 1979-04-26
AU515384B2 true AU515384B2 (en) 1981-04-02

Family

ID=24624784

Family Applications (1)

Application Number Title Priority Date Filing Date
AU29514/77A Expired AU515384B2 (en) 1976-02-02 1977-10-10 Protection device fora. c. motor circuit

Country Status (6)

Country Link
AU (1) AU515384B2 (en)
DE (1) DE2704337A1 (en)
FR (1) FR2339979A1 (en)
GB (1) GB1555214A (en)
IT (1) IT1085308B (en)
ZA (1) ZA77581B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2920055A1 (en) * 1979-05-18 1980-11-27 Barmag Barmer Maschf Motor control system for multiple textile machines - uses summing device between selected phase connections and three phase supply
FR2544352B2 (en) * 1982-12-30 1986-01-24 Esswein Sa LAUNDRY WASHING MACHINE WITH VARIABLE LAUNDRY DEPENDING ON THE RESISTANT TORQUE OPPOSING THE DRUM DRIVE MOTOR
EP0090716B1 (en) * 1982-03-26 1986-02-26 Esswein S.A. Clothes washer with a reduced-power motor for driving the drum
DE10148815A1 (en) * 2001-10-02 2003-04-10 Abb Patent Gmbh Method and device for current value determination using a current transformer which works in the area of core saturation
DE102020125923A1 (en) 2020-10-04 2022-04-07 EPA GmbH Absorption filter and method for producing one

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1961686B2 (en) * 1969-12-02 1979-05-31 Siemens Ag, 1000 Berlin Und 8000 Muenchen Overcurrent protection relay circuit for AC network - uses current transformer and full wave rectifier to produce measured and supply voltage from opposite half cycles
DE2150948B2 (en) * 1971-10-13 1975-04-03 Josef Dumser Schaltanlagenbau, 6745 Offenbach Temp.-independent current limiter for three-phase supplies - compares phase-line signal evaluators output with remotely-set reference
GB1459176A (en) * 1972-11-01 1976-12-22 Square D Co Overcurrent protective apparatus for a power circuit
US3846675A (en) * 1973-01-30 1974-11-05 Westinghouse Electric Corp Molded case circuit breakers utilizing saturating current transformers
US3875464A (en) * 1973-10-10 1975-04-01 Westinghouse Electric Corp Solid state overload relay

Also Published As

Publication number Publication date
ZA77581B (en) 1977-12-28
FR2339979B1 (en) 1984-02-03
AU2951477A (en) 1979-04-26
FR2339979A1 (en) 1977-08-26
DE2704337A1 (en) 1977-08-04
GB1555214A (en) 1979-11-07
IT1085308B (en) 1985-05-28

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