BR8902536A - Sistema de controle eletromagnetico de protecao termica para um acionamento a motor de ca bidirecional - Google Patents

Sistema de controle eletromagnetico de protecao termica para um acionamento a motor de ca bidirecional

Info

Publication number
BR8902536A
BR8902536A BR898902536A BR8902536A BR8902536A BR 8902536 A BR8902536 A BR 8902536A BR 898902536 A BR898902536 A BR 898902536A BR 8902536 A BR8902536 A BR 8902536A BR 8902536 A BR8902536 A BR 8902536A
Authority
BR
Brazil
Prior art keywords
bidirectional
control system
motor drive
thermal protection
electromagnetic control
Prior art date
Application number
BR898902536A
Other languages
English (en)
Inventor
Denis Armin Mueller
Gary Francis Saletta
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 BR8902536A publication Critical patent/BR8902536A/pt

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H6/00—Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images
    • H02H6/005—Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images using digital thermal images
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/005—Inversing contactors
    • 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
    • H02H7/0853—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 specially adapted for motors rotating in both directions
BR898902536A 1988-06-02 1989-06-02 Sistema de controle eletromagnetico de protecao termica para um acionamento a motor de ca bidirecional BR8902536A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/201,237 US4819118A (en) 1988-06-02 1988-06-02 Electromagnetic contactor tandem control system for thermal protection of a bidirectional motor drive

Publications (1)

Publication Number Publication Date
BR8902536A true BR8902536A (pt) 1990-01-23

Family

ID=22745041

Family Applications (1)

Application Number Title Priority Date Filing Date
BR898902536A BR8902536A (pt) 1988-06-02 1989-06-02 Sistema de controle eletromagnetico de protecao termica para um acionamento a motor de ca bidirecional

Country Status (7)

Country Link
US (1) US4819118A (pt)
EP (1) EP0345066B1 (pt)
AU (1) AU615063B2 (pt)
BR (1) BR8902536A (pt)
CA (1) CA1296762C (pt)
DE (1) DE68910727T2 (pt)
MX (1) MX167088B (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920002864B1 (ko) * 1987-07-20 1992-04-06 가부시기가이샤 히다찌세이사꾸쇼 플라즈마 처리방법 및 그 장치
US5493468A (en) * 1992-08-21 1996-02-20 Eaton Corporation Electrical contactor system with transfer of scaled overload information
US5506485A (en) * 1992-08-21 1996-04-09 Eaton Corporation Digital modular microprocessor based electrical contactor system
US5539608A (en) * 1993-02-25 1996-07-23 Eaton Corporation Electronic interlock for electromagnetic contactor
US5510949A (en) * 1993-12-15 1996-04-23 Eaton Corporation Duty cycle filtered trip signalling
US5925996A (en) * 1997-10-10 1999-07-20 Whistler Corporation Of Massachusetts Garage door operator motor secondary thermal overload
US11196334B2 (en) * 2017-07-31 2021-12-07 Rohm Co., Ltd. Current sense circuit
EP4190471A1 (de) 2021-12-06 2023-06-07 HVM Technology GmbH Ausgleichsspannfutter zum zentrischen einstellen von werkstücken, und werkzeugmaschine mit selbigem

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3735219A (en) * 1971-08-25 1973-05-22 Memorex Corp Thermal protection device for linear motor
CH575187A5 (pt) * 1974-02-14 1976-04-30 Sulzer Ag
US4034269A (en) * 1975-12-12 1977-07-05 General Electric Company Protective relay circuits
US4038695A (en) * 1976-04-19 1977-07-26 General Electric Company Static trip unit for circuit protective devices
US4219860A (en) * 1978-12-20 1980-08-26 General Electric Company Overcurrent relay apparatus
US4319298A (en) * 1979-08-28 1982-03-09 General Electric Company Motor protection device
FR2488458A1 (fr) * 1980-08-04 1982-02-12 Telemecanique Electrique Circuit de protection thermique d'un moteur electrique comportant deux organes a constante de temps
US4423459A (en) * 1982-04-05 1983-12-27 Siemens-Allis, Inc. Solid state circuit protection system and method
US4423458A (en) * 1982-04-05 1983-12-27 Siemens-Allis, Inc. Signal processing system for overload relay or the like
CA1193316A (en) * 1982-05-07 1985-09-10 David R. Boothman Motor protection apparatus
US4547826A (en) * 1983-11-30 1985-10-15 General Electric Company Generalized real-time thermal model
US4525763A (en) * 1983-11-30 1985-06-25 General Electric Company Apparatus and method to protect motors and to protect motor life
US4550360A (en) * 1984-05-21 1985-10-29 General Electric Company Circuit breaker static trip unit having automatic circuit trimming
US4589052A (en) * 1984-07-17 1986-05-13 General Electric Company Digital I2 T pickup, time bands and timing control circuits for static trip circuit breakers
FR2578091B1 (fr) * 1985-02-25 1988-08-05 Merlin Gerin Disjoncteur a declencheur statique numerique dote d'un circuit de calibrage
US4658323A (en) * 1985-06-10 1987-04-14 General Electric Company RMS calculation circuit for digital circuit interrupters
FR2586489B1 (fr) * 1985-08-23 1988-02-26 Telemecanique Electrique Dispositif de determination numerique et de sauvegarde d'une image thermique
FR2598027B1 (fr) * 1986-04-23 1990-10-12 Telemecanique Electrique Appareil contacteur inverseur protege conte les surintensites de courant

Also Published As

Publication number Publication date
EP0345066B1 (en) 1993-11-18
EP0345066A3 (en) 1991-01-16
DE68910727D1 (de) 1993-12-23
AU3500589A (en) 1989-12-07
EP0345066A2 (en) 1989-12-06
US4819118A (en) 1989-04-04
CA1296762C (en) 1992-03-03
AU615063B2 (en) 1991-09-19
DE68910727T2 (de) 1994-05-19
MX167088B (es) 1993-03-03

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Legal Events

Date Code Title Description
FG Letter patent granted
PC Transfer

Free format text: EATON CORPORATION (US)

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 02/06/2004