DE68910727T2 - Elektromagnetischer Schutz mit Tandemsteuerung für den thermischen Schutz eines Motorantriebs für zwei Drehrichtungen. - Google Patents

Elektromagnetischer Schutz mit Tandemsteuerung für den thermischen Schutz eines Motorantriebs für zwei Drehrichtungen.

Info

Publication number
DE68910727T2
DE68910727T2 DE68910727T DE68910727T DE68910727T2 DE 68910727 T2 DE68910727 T2 DE 68910727T2 DE 68910727 T DE68910727 T DE 68910727T DE 68910727 T DE68910727 T DE 68910727T DE 68910727 T2 DE68910727 T2 DE 68910727T2
Authority
DE
Germany
Prior art keywords
protection
directions
rotation
motor drive
tandem control
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 - Fee Related
Application number
DE68910727T
Other languages
English (en)
Other versions
DE68910727D1 (de
Inventor
Denis Armin Mueller
Gary Francis Saletta
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.)
CBS Corp
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 DE68910727D1 publication Critical patent/DE68910727D1/de
Application granted granted Critical
Publication of DE68910727T2 publication Critical patent/DE68910727T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
DE68910727T 1988-06-02 1989-06-02 Elektromagnetischer Schutz mit Tandemsteuerung für den thermischen Schutz eines Motorantriebs für zwei Drehrichtungen. Expired - Fee Related DE68910727T2 (de)

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 (2)

Publication Number Publication Date
DE68910727D1 DE68910727D1 (de) 1993-12-23
DE68910727T2 true DE68910727T2 (de) 1994-05-19

Family

ID=22745041

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68910727T Expired - Fee Related DE68910727T2 (de) 1988-06-02 1989-06-02 Elektromagnetischer Schutz mit Tandemsteuerung für den thermischen Schutz eines Motorantriebs für zwei Drehrichtungen.

Country Status (7)

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

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
US5506485A (en) * 1992-08-21 1996-04-09 Eaton Corporation Digital modular microprocessor based electrical contactor system
US5493468A (en) * 1992-08-21 1996-02-20 Eaton Corporation Electrical contactor system with transfer of scaled overload information
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
JP6762431B2 (ja) * 2017-07-31 2020-09-30 ローム株式会社 電流検出回路
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 (de) * 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
US4525763A (en) * 1983-11-30 1985-06-25 General Electric Company Apparatus and method to protect motors and to protect motor life
US4547826A (en) * 1983-11-30 1985-10-15 General Electric Company Generalized real-time thermal model
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
AU615063B2 (en) 1991-09-19
DE68910727D1 (de) 1993-12-23
AU3500589A (en) 1989-12-07
US4819118A (en) 1989-04-04
MX167088B (es) 1993-03-03
EP0345066A3 (de) 1991-01-16
BR8902536A (pt) 1990-01-23
EP0345066B1 (de) 1993-11-18
CA1296762C (en) 1992-03-03
EP0345066A2 (de) 1989-12-06

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee