FR2359537A1 - - Google Patents

Info

Publication number
FR2359537A1
FR2359537A1 FR7721617A FR7721617A FR2359537A1 FR 2359537 A1 FR2359537 A1 FR 2359537A1 FR 7721617 A FR7721617 A FR 7721617A FR 7721617 A FR7721617 A FR 7721617A FR 2359537 A1 FR2359537 A1 FR 2359537A1
Authority
FR
France
Prior art keywords
motor
current
voltage
power
proportion
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.)
Granted
Application number
FR7721617A
Other languages
English (en)
Other versions
FR2359537B1 (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.)
National Aeronautics and Space Administration NASA
Original Assignee
National Aeronautics and Space Administration NASA
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 National Aeronautics and Space Administration NASA filed Critical National Aeronautics and Space Administration NASA
Publication of FR2359537A1 publication Critical patent/FR2359537A1/fr
Application granted granted Critical
Publication of FR2359537B1 publication Critical patent/FR2359537B1/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
    • H02J3/1892—Arrangements for adjusting, eliminating or compensating reactive power in networks the arrangements being an integral part of the load, e.g. a motor, or of its control circuit
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • G01R21/006—Measuring power factor
    • 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
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/26—Power factor control [PFC]

Abstract

L'invention a pour objet un dispositif de réglage de facteur de puissance utilisable avec un moteur à induction 10, qui échantillonne la tension et le courant dans le moteur, et réduit la puissance fournie au moteur proportionnellement au décalage de phase mesuré entre le courant et la tension, pour délivrer moins de puissance au moteur quand il est moins chargé.
FR7721617A 1976-07-19 1977-07-13 Dispositif de reglage du facteur de puissance pour moteur a induction Expired FR2359537B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/706,425 US4052648A (en) 1976-07-19 1976-07-19 Power factor control system for ac induction motors

Publications (2)

Publication Number Publication Date
FR2359537A1 true FR2359537A1 (fr) 1978-02-17
FR2359537B1 FR2359537B1 (fr) 1983-04-29

Family

ID=24837503

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7721617A Expired FR2359537B1 (fr) 1976-07-19 1977-07-13 Dispositif de reglage du facteur de puissance pour moteur a induction

Country Status (10)

Country Link
US (1) US4052648A (fr)
JP (1) JPS5328223A (fr)
AU (1) AU508213B2 (fr)
CA (1) CA1075307A (fr)
DE (1) DE2730774A1 (fr)
FR (1) FR2359537B1 (fr)
GB (1) GB1551644A (fr)
HK (1) HK1681A (fr)
IT (1) IT1083368B (fr)
NL (1) NL178639C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2485290A1 (fr) * 1980-06-20 1981-12-24 Vectrol Inc Dispositif de commande de moteur polyphase
FR2486328A1 (fr) * 1980-07-03 1982-01-08 Parker Louis Dispositif perfectionne d'economie d'energie pour moteurs a induction
FR2493561A1 (fr) * 1980-05-06 1982-05-07 Chesebrough Ponds Controleur de facteur de puissance a etalonnage automatique pour moteurs a induction a courant alternatif

Families Citing this family (113)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5534854A (en) * 1978-09-04 1980-03-11 Hitachi Ltd Controlling method of secondary winding-exciting motor
GB2034938B (en) * 1978-11-22 1982-12-22 Ferranti Ltd Automatic control systems
US4242625A (en) * 1979-05-04 1980-12-30 Louis W. Parker Energy economizer for polyphase induction motors
WO1980002895A1 (fr) * 1979-05-25 1980-12-24 Scott & Fetzer Co Controleur du facteur puissance pour un moteur a induction
US4266177A (en) * 1979-06-01 1981-05-05 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Power factor control system for AC induction motors
US4249120A (en) * 1979-07-26 1981-02-03 Mcgraw-Edison Co. Variable speed induction motor control system
US4333046A (en) * 1979-08-15 1982-06-01 The Scott & Fetzer Company Power factor control of a three-phase induction motor
US4291264A (en) * 1979-09-04 1981-09-22 Borg-Warner Corporation Power factor control system for inverter-driven a-c induction motor
DE2938625A1 (de) * 1979-09-25 1981-04-09 Frankl & Kirchner GmbH & Co KG Fabrik für Elektromotoren u.elektrische Apparate, 6830 Schwetzingen Schaltungsanordnung zum energiesparen
DE2939090A1 (de) * 1979-09-27 1981-04-16 Zinser Textilmaschinen Gmbh, 7333 Ebersbach Verfahren und anordnung zur steuerung oder regelung der drehzahl von asynchron- oder reluktanz-motoren
US4271386A (en) * 1979-12-05 1981-06-02 The Scott & Fetzer Company Power factor controller for induction motor
US4287464A (en) * 1979-12-17 1981-09-01 The Scott & Fetzer Company Power factor controller for an induction motor using transistor switch means with variable breakdown voltage
US4323835A (en) * 1980-03-05 1982-04-06 The Scott & Fetzer Company Simplified power factor controller for induction motor
US4387329A (en) * 1980-03-21 1983-06-07 Electronic Assemblers Company Three phase power-factor control system for A.C. induction motors
JPS6042717B2 (ja) * 1980-04-22 1985-09-24 三菱電機株式会社 誘導電動機用電力制御装置
US4443750A (en) * 1980-04-30 1984-04-17 Zero-Max Industries, Incorporated Energy saving motor speed controller
US4361793A (en) * 1980-06-05 1982-11-30 Sunbird Corporation Motor voltage controller device
US4388578A (en) * 1980-07-07 1983-06-14 Cynex Manufacturing Corporation Power factor controller
JPS5725192A (en) * 1980-07-21 1982-02-09 Hitachi Ltd Controller for induction motor
US4422030A (en) * 1980-08-15 1983-12-20 Mcallise Raymond J A.C. Motor control
US4355274A (en) * 1980-09-08 1982-10-19 Bourbeau Frank J Load responsive control system for constant speed induction motor
US4417194A (en) * 1980-09-18 1983-11-22 The Charles Stark Draper Laboratory, Inc. Induction generator system with switched capacitor control
US4356440A (en) * 1980-09-18 1982-10-26 The Charles Stark Draper Laboratory, Inc. Power factor correction system
IN157249B (fr) * 1980-09-26 1986-02-15 Nat Res Dev
US4298834A (en) * 1980-10-17 1981-11-03 Opfer Gerald D Power dissipation regulating circuit for induction motor by supply voltage control in function of phase angle
US4454462A (en) * 1980-10-20 1984-06-12 Neha International Power factor motor controller
NO156190C (no) * 1980-10-23 1987-08-05 Nasa Effektfaktor-styreinnretning.
US4404511A (en) * 1980-10-23 1983-09-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Motor power factor controller with a reduced voltage starter
US4433276A (en) * 1980-10-23 1984-02-21 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Three phase power factor controller
US4382308A (en) * 1981-02-18 1983-05-10 Chemcut Corporation Scrubbing torque monitoring and control system
US4445078A (en) * 1981-03-13 1984-04-24 Energy Vent, Inc. Processor module for power factor controller
US4379254A (en) * 1981-03-23 1983-04-05 Andrew L. D'Orio Dimmer circuit for fluorescent lamp
US4468603A (en) * 1981-04-03 1984-08-28 Eaton Corporation Load voltage-current displacement regulator motor control system
US4459529A (en) * 1981-04-20 1984-07-10 Nordic Controls Co. Power factor control circuit for AC motors
FR2508737B1 (fr) * 1981-06-24 1986-03-21 Westinghouse Electric Corp Appareil pour commander des moteurs a courant alternatif
US4439718A (en) * 1981-08-28 1984-03-27 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Motor power control circuit for A.C. induction motors
GR76750B (fr) * 1981-10-27 1984-08-30 Thomas Mark Empson
US4409532A (en) * 1981-11-06 1983-10-11 General Electric Company Start control arrangement for split phase induction motor
CH664460A5 (de) * 1981-12-09 1988-02-29 Zinser Textilmaschinen Gmbh Verfahren und einrichtung zum verringern der leistungsaufnahme einer elektrischen antriebsanordnung.
US4417196A (en) * 1981-12-10 1983-11-22 Gk Technologies, Incorporated Cord sets with power-factor control
EP0092370A1 (fr) * 1982-04-16 1983-10-26 Conder International PLC Régulateur pour moteurs à courant alternatif
US4481786A (en) * 1982-06-04 1984-11-13 Whirlpool Corporation Electronic control for a domestic appliance
US4626746A (en) * 1982-07-26 1986-12-02 Andrew Zaderej Power control circuit
US4443906A (en) * 1982-08-20 1984-04-24 Tucker Hartwell F Machine for floor maintenance
US4590635A (en) * 1982-08-20 1986-05-27 Octa, Inc. Machine for floor maintenance
US4567391A (en) * 1982-08-20 1986-01-28 Octa, Inc. Permanent magnet disc rotor machine
GB2126440A (en) * 1982-09-01 1984-03-21 Chang Ten Ho Electrical energy saving device for motors
WO1984002404A1 (fr) * 1982-12-11 1984-06-21 Fairford Electronics Ltd Procede et appareil de reglage automatique de la demande du signal d'entree d'un retard de phase dans un controleur de facteur de puissance d'un moteur a induction
US4469998A (en) * 1982-12-16 1984-09-04 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Three-phase power factor controller with induced emf sensing
US4459528A (en) * 1982-12-16 1984-07-10 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Phase detector for three-phase power factor controller
ZA846307B (en) * 1983-11-04 1985-03-27 Chesebrough Ponds Induction motor control system
FR2577730B1 (fr) * 1985-02-20 1987-03-06 Seram Appareil pour reduire l'energie consommee par les moteurs electriques
ATE50473T1 (de) * 1985-03-11 1990-03-15 Elfi Innovationer Verfahren zum anlassen eines asynchronmotors und geraet zur durchfuehrung dieses verfahrens.
US4806838A (en) * 1988-05-23 1989-02-21 Weber Harold J A.C. induction motor energy conserving power control method and apparatus
US5008608A (en) * 1989-12-26 1991-04-16 Allen-Bradley Company, Inc. Controller for starting and stopping electric motors
US4971522A (en) * 1989-05-11 1990-11-20 Butlin Duncan M Control system and method for AC motor driven cyclic load
US5101575A (en) * 1990-01-02 1992-04-07 Whirlpool Corporation Heater diagnostics and electronic control for a clothes dryer
US5013990A (en) * 1989-10-16 1991-05-07 Weber Harold J Energy conserving electric motor power control method and apparatus
US5151642A (en) * 1990-05-03 1992-09-29 Allen-Bradley Company, Inc. Apparatus for controlling an electric motor
JP2524566B2 (ja) * 1990-12-12 1996-08-14 アレックス電子工業株式会社 誘導電動機制御方法
US5670858A (en) * 1991-06-03 1997-09-23 Condyne Technology, Inc. Single-phase induction motor safety controller
JPH05227795A (ja) * 1992-02-10 1993-09-03 Alex Denshi Kogyo Kk 誘導電動機制御装置および制御方法
US5329223A (en) * 1992-06-26 1994-07-12 Green Technologies, Inc. Ideal voltage controller for conserving energy in inductive loads
US5444359A (en) * 1992-06-26 1995-08-22 Green Technologies, Inc. Load sensitive variable voltage motor controller
US5637975A (en) * 1992-10-16 1997-06-10 Pummer; Alexander C. Power factor corrector for A.C. induction motors
US5304911A (en) * 1992-12-14 1994-04-19 Energy Consortium Inc Power control system for an A.C. induction motor
US5592062A (en) * 1994-03-08 1997-01-07 Bach; Daniel G. Controller for AC induction motors
HU9401800D0 (en) * 1994-06-17 1994-09-28 Energestor Kereskedelmi Es Szo Electronic apparatus for decrease of active and reactive energy consumption of ac electric motors with star-delta connection loaded by variable load, improvement of power factor and motor protection
US5814966A (en) * 1994-08-08 1998-09-29 National Power Systems, Inc. Digital power optimization system for AC induction motors
US5512809A (en) * 1994-08-11 1996-04-30 Penn Ventilator Co., Inc. Apparatus and method for starting and controlling a motor
US5747972A (en) * 1995-01-11 1998-05-05 Microplanet Ltd. Method and apparatus for electronic power control
US7315151B2 (en) * 1995-01-11 2008-01-01 Microplanet Inc. Method and apparatus for electronic power control
KR0153103B1 (ko) * 1995-05-23 1998-12-15 김태승 유도전동기의 입력전력 제어 장치
US5627446A (en) * 1995-07-05 1997-05-06 Ford Motor Company Induction motor control method
US5682091A (en) * 1996-03-20 1997-10-28 National Power Systems, Inc. Digital power optimization system for polyphase AC induction motors
US5754036A (en) * 1996-07-25 1998-05-19 Lti International, Inc. Energy saving power control system and method
US5821726A (en) * 1997-01-21 1998-10-13 Power Efficiency Corp. Balanced and synchronized phase detector for an AC induction motor controller
US6690594B2 (en) 2000-08-10 2004-02-10 Sal G. Amarillas Electrical power conservation apparatus and method
US20020145400A1 (en) 2001-04-10 2002-10-10 Cashatt Jerry D. Motor load controller for AC induction motors
US6636011B2 (en) 2001-06-13 2003-10-21 Emerson Electric Co. Induction motor control system
US6670783B2 (en) 2001-10-31 2003-12-30 Pelco Method and apparatus for improved motor control through current/velocity correction
US6616416B1 (en) 2002-02-19 2003-09-09 Bristol Compressors, Inc. Methods and system for motor optimization using capacitance and/or voltage adjustments
US7606011B2 (en) * 2004-04-15 2009-10-20 Sundyne Corporation Motor controller with automated input power determination
WO2006074457A2 (fr) * 2005-01-03 2006-07-13 Aci Power Systems, Inc. Systeme et procede de regulation de tension alternative
CN1283037C (zh) * 2005-01-21 2006-11-01 常熟市天银机电有限公司 互感式无触点起动器
US7378821B2 (en) * 2005-08-01 2008-05-27 Enviro World Technologies, Inc Method and apparatus using VAR measurements to control power input to a three-phase induction motor circuit
US7768221B2 (en) * 2006-06-02 2010-08-03 Power Efficiency Corporation Method, system, and apparatus for controlling an electric motor
US7506392B2 (en) * 2006-06-21 2009-03-24 Alliance Laundry Systems Llc Laundry machine control system for load imbalance detection and extraction speed selection
US8619443B2 (en) 2010-09-29 2013-12-31 The Powerwise Group, Inc. System and method to boost voltage
US8085009B2 (en) 2007-08-13 2011-12-27 The Powerwise Group, Inc. IGBT/FET-based energy savings device for reducing a predetermined amount of voltage using pulse width modulation
US8120307B2 (en) 2007-08-24 2012-02-21 The Powerwise Group, Inc. System and method for providing constant loading in AC power applications
US8085010B2 (en) * 2007-08-24 2011-12-27 The Powerwise Group, Inc. TRIAC/SCR-based energy savings device for reducing a predetermined amount of voltage using pulse width modulation
US8810190B2 (en) 2007-09-14 2014-08-19 The Powerwise Group, Inc. Motor controller system and method for maximizing energy savings
US8698447B2 (en) 2007-09-14 2014-04-15 The Powerwise Group, Inc. Energy saving system and method for devices with rotating or reciprocating masses
EP2212750A4 (fr) * 2007-10-23 2012-07-25 Power Efficiency Corp Algorithme de commande de moteur électrique avec relais de dérivation
IL188884A (en) 2008-01-20 2010-11-30 Ilya Rabinovich Star-delta many levels starter for an ac induction motor
US7638966B1 (en) * 2008-09-03 2009-12-29 Alexander Pummer Voltage control and power factor correction in AC induction motors
KR101533560B1 (ko) * 2008-09-22 2015-07-09 삼성전자 주식회사 3상 역률 보상 장치 및 그 제어방법
US8339093B2 (en) * 2009-06-11 2012-12-25 Eaton Corporation System and method of dynamic regulation of real power to a load
US8232760B2 (en) * 2009-06-11 2012-07-31 Easton Corporation System and method of dynamic regulation of real power to a load
US9148083B2 (en) 2009-06-11 2015-09-29 Eaton Corporation System and method of dynamic regulation of real power to a load
KR101816058B1 (ko) 2009-09-08 2018-01-08 더 파워와이즈 그룹, 인코포레이티드 매스 회전식 또는 왕복식 장치에 의한 에너지 세이브 시스템 및 방법
US8698446B2 (en) 2009-09-08 2014-04-15 The Powerwise Group, Inc. Method to save energy for devices with rotating or reciprocating masses
US8575881B2 (en) * 2009-09-10 2013-11-05 Energy Innovative Products, Inc. Current injection circuit for delaying the full operation of a power factor control circuit for AC induction motors
ITCT20100003A1 (it) * 2010-03-17 2011-09-18 Mario Cacciato Sistema e metodo di controllo per l'ottimizzazione energetica di azionamenti con motori in corrente alternata
GB2480620A (en) 2010-05-25 2011-11-30 Energy2Trade Oy Reactive Power Management
RU2488939C2 (ru) * 2010-11-08 2013-07-27 Илья Иойликович Рабинович Многоуровневый стартер звезда-треугольник для управления индукционным двигателем
US8362735B2 (en) * 2011-03-07 2013-01-29 Protective Energy Economizer Technology Single phase motor energy economizer for regulating the use of electricity
WO2013033502A1 (fr) 2011-08-31 2013-03-07 Johnson Controls Technology Company Système et procédé permettant de réguler un variateur de vitesse d'un moteur de compresseur
EP2937976B1 (fr) * 2014-04-22 2017-11-22 Skf Magnetic Mechatronics Dispositif de commande de palier magnétique électronique avec dispositif de compensation de puissance réactive automatique
EP3330722A1 (fr) * 2016-12-01 2018-06-06 Siemens Aktiengesellschaft Procédé et circuit de diagnostic d'un courant de charge d'un thyristor en fonction du courant de grille
WO2018140902A1 (fr) 2017-01-27 2018-08-02 Franklin Electric Co., Inc. Système d'entraînement de moteur comprenant un circuit de dérivation amovible et/ou des éléments de refroidissement
GB2581783B (en) * 2019-02-22 2021-07-14 Baker Hughes Energy Tech Uk Limited Power factor determination

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441823A (en) * 1966-07-13 1969-04-29 Westinghouse Electric Corp Tachometerless induction motor speed control
FR2116584A3 (fr) * 1970-12-03 1972-07-13 Dornier Ag
FR2277457A1 (fr) * 1973-07-02 1976-01-30 Siemens Ag Montage pour l'alimentation d'un organe utilisateur a courant continu a partir d'une source a courant alternatif suivie d'un redresseur non commande

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT301692B (de) * 1970-12-23 1972-09-11 Kurt Seidl Dipl Ing Dr Techn Wechselrichter
JPS5345487B2 (fr) * 1974-04-17 1978-12-07

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3441823A (en) * 1966-07-13 1969-04-29 Westinghouse Electric Corp Tachometerless induction motor speed control
FR2116584A3 (fr) * 1970-12-03 1972-07-13 Dornier Ag
FR2277457A1 (fr) * 1973-07-02 1976-01-30 Siemens Ag Montage pour l'alimentation d'un organe utilisateur a courant continu a partir d'une source a courant alternatif suivie d'un redresseur non commande

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2493561A1 (fr) * 1980-05-06 1982-05-07 Chesebrough Ponds Controleur de facteur de puissance a etalonnage automatique pour moteurs a induction a courant alternatif
FR2485290A1 (fr) * 1980-06-20 1981-12-24 Vectrol Inc Dispositif de commande de moteur polyphase
FR2486328A1 (fr) * 1980-07-03 1982-01-08 Parker Louis Dispositif perfectionne d'economie d'energie pour moteurs a induction

Also Published As

Publication number Publication date
NL7707266A (nl) 1978-01-23
CA1075307A (fr) 1980-04-08
HK1681A (en) 1981-01-23
JPS5328223A (en) 1978-03-16
US4052648A (en) 1977-10-04
NL178639B (nl) 1985-11-18
DE2730774A1 (de) 1978-01-26
FR2359537B1 (fr) 1983-04-29
NL178639C (nl) 1986-04-16
AU508213B2 (en) 1980-03-13
GB1551644A (en) 1979-08-30
JPS5726079B2 (fr) 1982-06-02
DE2730774C2 (fr) 1987-08-20
IT1083368B (it) 1985-05-21
AU2714677A (en) 1979-01-25

Similar Documents

Publication Publication Date Title
FR2359537A1 (fr)
AT380387B (de) Verstellvorrichtung fuer rueckenstuetzen an rueckenlehnen von sitzen u. dgl.
NL7601287A (nl) Traploos variabele aandrijfwerkwijze en -inrich- ting.
GB1381035A (en) Electrical system with current and voltage limiting-protective means
FR2414819A1 (fr) Alimentation electrique
FR2422472A1 (fr) Dispositif de soudure a courant continu
NL7707851A (nl) Elektrisch verbindingsorgaan en elektrische verbindingsinrichting voorzien van dergelijke elektrische verbindingsorganen.
DE3679560D1 (de) Gurtstraffer mit gurtbandklemmeinrichtung.
CH376564A (fr) Dispositif d'alimentation en courant électrique comprenant au moins une génératrice homopolaire auto-excitée
DE69108187T2 (de) Regelvorrichtung für die von einem Wechselstromgenerator abgegebene Batteriespannung.
FI52563C (fi) Rullaportaan käsikaiteen veto- ja kiristyslaite.
GB1545657A (en) Stepping motor with energizing circuit
NL7706010A (nl) Spanning- of stroomgeregelde spanningsomzetter.
FR2395543A1 (fr) Regulateur de tension
BE861626A (fr) Corps ceramique a resistance dependant de la tension appliquee
FR2455312A1 (fr) Servomecanisme et dispositif de mise en position d'un organe de commande d'un aeronef, tenant compte du calage eventuel d'un servomoteur
FR2457036A1 (fr) Regulateur de courant continu transistorise avec circuit de reglage separe en ce qui concerne le potentiel
SU806945A1 (ru) Устройство дл нат жени цепныхРЕВЕРСиВНыХ пЕРЕдАч
FR2394955A1 (fr) Procede et dispositif de mise sous tension d'une charge alimentee en alternatif
IT8023253A0 (it) Cintura di sicurezza su tre punti con avvolgitore di cintura ed occhiello di passaggio sul fermaglio della cintura.
FR2400443A1 (fr) Dispositif de couplage pour le reglage instantane lors de la commande des vitesses d'une boite de vitesse automatique
BE901759A (fr) Dispositif de commutation pour selecteur en charge de transformateurs a prises.
NL7701523A (nl) Weergeefinrichting en schakeling voorzien van een dergelijke weergeefinrichting.
FR2388393A1 (fr) Montage retard pour relais temporises
IT1072994B (it) Capicorda per funi metalliche

Legal Events

Date Code Title Description
ST Notification of lapse