JPS5065847A - - Google Patents

Info

Publication number
JPS5065847A
JPS5065847A JP49115252A JP11525274A JPS5065847A JP S5065847 A JPS5065847 A JP S5065847A JP 49115252 A JP49115252 A JP 49115252A JP 11525274 A JP11525274 A JP 11525274A JP S5065847 A JPS5065847 A JP S5065847A
Authority
JP
Japan
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.)
Pending
Application number
JP49115252A
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 filed Critical
Publication of JPS5065847A publication Critical patent/JPS5065847A/ja
Pending 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
    • 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

Landscapes

  • Emergency Protection Circuit Devices (AREA)
  • Protection Of Generators And Motors (AREA)
JP49115252A 1973-10-10 1974-10-08 Pending JPS5065847A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US405198A US3875464A (en) 1973-10-10 1973-10-10 Solid state overload relay

Publications (1)

Publication Number Publication Date
JPS5065847A true JPS5065847A (ja) 1975-06-03

Family

ID=23602694

Family Applications (1)

Application Number Title Priority Date Filing Date
JP49115252A Pending JPS5065847A (ja) 1973-10-10 1974-10-08

Country Status (2)

Country Link
US (1) US3875464A (ja)
JP (1) JPS5065847A (ja)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4027203A (en) * 1975-03-06 1977-05-31 Mcgraw-Edison Company Protective switch device for electrical distribution systems
US3974446A (en) * 1975-04-10 1976-08-10 Schweitzer Edmund O Jun Polyphase fault current flow detecting and resetting means
DE2704337A1 (de) * 1976-02-02 1977-08-04 Square D Co Ueberstromschutzgeraet fuer einen wechselstrommotor
DE2707455C3 (de) * 1976-02-23 1981-12-10 Tokyo Shibaura Electric Co., Ltd., Kawasaki, Kanagawa Elektronischer Überstrom-Schutzschalter
DE2724293C2 (de) * 1977-05-28 1984-09-06 C. & E. Fein Gmbh & Co, 7000 Stuttgart Elektronische Schaltungsanordnung zur Drehmomentbegrenzung
US4250501A (en) * 1978-07-28 1981-02-10 Kurt Pokrandt Current sensing circuitry
US4243982A (en) * 1979-02-26 1981-01-06 Yarbrough John K Current monitor
US4240072A (en) * 1979-03-19 1980-12-16 Research Products Corporation Load indicator for an air cleaner
IE52772B1 (en) * 1981-04-27 1988-02-17 Westinghouse Electric Corp Solid state load protection system having electronic simulation of motor heating
US4404612A (en) * 1981-12-14 1983-09-13 Harvey Hubbell Incorporated DC Solid state overload relay
FR2544352B2 (fr) * 1982-12-30 1986-01-24 Esswein Sa Lave-linge a energie de brassage du linge variable en fonction du couple resistant s'opposant au moteur d'entrainement du tambour
AT376852B (de) 1982-07-29 1985-01-10 Naimer H L Schaltungsanordnung fuer ein rechnergestuetztes schaltgeraet
US4968944A (en) * 1987-10-19 1990-11-06 Myron Zucker, Inc. Apparatus for detecting malfunctions of a single electrical device in a group of electrical devices, and methods of constructing and utilizing same
US4849849A (en) * 1987-10-19 1989-07-18 Myron Zucker, Inc. Apparatus for detecting malfunctions of an electrical device, and methods of constructing and utilizing same
US4972153A (en) * 1987-10-19 1990-11-20 Zucker Myron Apparatus for detecting a plurality of energy levels in a conductor
US4931778A (en) * 1989-02-27 1990-06-05 Teledyne Industries, Inc. Circuitry for indicating the presence of an overload or short circuit in solid state relay circuits
US4912590A (en) * 1989-05-01 1990-03-27 Westinghouse Electric Corp. Electrical surge suppressor and dual indicator apparatus
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
US5512883A (en) * 1992-11-03 1996-04-30 Lane, Jr.; William E. Method and device for monitoring the operation of a motor
US5668692A (en) * 1993-10-27 1997-09-16 Square D Company Self-powered circuit interruption arrangement
US5598315A (en) * 1993-10-27 1997-01-28 Square D Company Self-power tripping relay with balanced power supply current and measurement current
US5815357A (en) * 1997-04-09 1998-09-29 Eaton Corporation Method and apparatus for three-phase sensing using two current transformers
US5959818A (en) * 1997-06-30 1999-09-28 Eaton Corporation Method and apparatus for self-powered three-phase sensing to determine true RMS current values with separate burdens for each current transformer
US5777835A (en) * 1997-06-30 1998-07-07 Eaton Corporation Third phase reconstruction from a two current transformer sensor with three-phase true RMS and phase loss determination capabilities
JPH11252990A (ja) * 1998-02-27 1999-09-17 Fanuc Ltd Ｐｗｍ方式によるモータ制御装置
US5978198A (en) * 1998-03-17 1999-11-02 Pass & Seymour, Inc. Transient voltage surge suppressor with three-way fault indication
EP2477292B1 (en) 2011-01-17 2016-05-18 Schneider Electric USA, Inc. Automatic reset discrimination system and method for a self powered electronic protection device
US10812007B1 (en) * 2019-04-16 2020-10-20 Siemens Industry, Inc. Motor undervoltage ride-through circuit controlled by motor protective relay
US12136837B1 (en) * 2020-12-08 2024-11-05 Bobbie Wilson Charge balancing of parallel strings with zener diode and light emitting diode between cell terminal of the battery strings

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3769550A (en) * 1972-05-30 1973-10-30 Lear Siegler Inc Voltage sensitive control device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3602771A (en) * 1969-10-13 1971-08-31 Furnas Electric Co Solid state de-energizer having current sensing loops
US3619668A (en) * 1970-08-27 1971-11-09 Honeywell Inc Minimum off-time circuit
US3742302A (en) * 1971-10-12 1973-06-26 Carrier Corp Motor relay protection for refrigerant compressor motors

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3769550A (en) * 1972-05-30 1973-10-30 Lear Siegler Inc Voltage sensitive control device

Also Published As

Publication number Publication date
US3875464A (en) 1975-04-01

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