FR2365689B1 - - Google Patents

Info

Publication number
FR2365689B1
FR2365689B1 FR7728636A FR7728636A FR2365689B1 FR 2365689 B1 FR2365689 B1 FR 2365689B1 FR 7728636 A FR7728636 A FR 7728636A FR 7728636 A FR7728636 A FR 7728636A FR 2365689 B1 FR2365689 B1 FR 2365689B1
Authority
FR
France
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
FR7728636A
Other languages
French (fr)
Other versions
FR2365689A1 (fr
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.)
Dresser Europe SPRL
Original Assignee
Dresser Europe SPRL
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 Dresser Europe SPRL filed Critical Dresser Europe SPRL
Publication of FR2365689A1 publication Critical patent/FR2365689A1/fr
Application granted granted Critical
Publication of FR2365689B1 publication Critical patent/FR2365689B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H02P25/24—Variable impedance in stator or rotor circuit
    • H02P25/26—Variable impedance in stator or rotor circuit with arrangements for controlling secondary impedance
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
    • E21C31/02—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam for cutting or breaking-down devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Power Engineering (AREA)
  • Control Of Ac Motors In General (AREA)
  • Control Of Multiple Motors (AREA)
  • Control Of Electric Motors In General (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
FR7728636A 1976-09-23 1977-09-22 Machine d'exploitation miniere entrainee par un moteur electrique Granted FR2365689A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB39582/76A GB1567641A (en) 1976-09-23 1976-09-23 Mining machine

Publications (2)

Publication Number Publication Date
FR2365689A1 FR2365689A1 (fr) 1978-04-21
FR2365689B1 true FR2365689B1 (enExample) 1984-02-10

Family

ID=10410342

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7728636A Granted FR2365689A1 (fr) 1976-09-23 1977-09-22 Machine d'exploitation miniere entrainee par un moteur electrique

Country Status (5)

Country Link
US (1) US4140951A (enExample)
JP (1) JPS5339903A (enExample)
DE (1) DE2742915A1 (enExample)
FR (1) FR2365689A1 (enExample)
GB (1) GB1567641A (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MX153910A (es) * 1980-05-20 1987-02-19 Fausto Leal Espinoza Mejoras a un sistema de control electronico de velocidad para un motor electrico
US4443748A (en) * 1981-03-16 1984-04-17 Boev Vladimir S Method of controlling speed of at least one induction motor and device therefor
US8608250B2 (en) * 2011-09-30 2013-12-17 Joy Mm Delaware, Inc. Slow turning drum for a miner

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1273669B (de) * 1964-11-10 1968-07-25 Licentia Gmbh Anordnung zur Drehzahlregelung eines Drehstrom-Asynchronmotors mit Schleifringlaeufer
FR1383635A (fr) * 1964-03-04 1964-12-24 Licentia Gmbh Procédé de contrôle ou de réglage de la vitesse des moteurs asynchrones
DE1233356B (de) * 1965-08-02 1967-02-02 Eickhoff Maschinenfabrik Geb Elektrisch angetriebene Schraemmaschine
US3657622A (en) * 1970-04-30 1972-04-18 Reuland Electric Co Industry Control for adjusting and regulating the speed of an electric motor

Also Published As

Publication number Publication date
FR2365689A1 (fr) 1978-04-21
GB1567641A (en) 1980-05-21
US4140951A (en) 1979-02-20
DE2742915A1 (de) 1978-03-30
JPS5339903A (en) 1978-04-12

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Legal Events

Date Code Title Description
ST Notification of lapse