BE893636A - Procede de preparation de furannes et de phenanthrenes - Google Patents
Procede de preparation de furannes et de phenanthrenesInfo
- Publication number
- BE893636A BE893636A BE0/208437A BE208437A BE893636A BE 893636 A BE893636 A BE 893636A BE 0/208437 A BE0/208437 A BE 0/208437A BE 208437 A BE208437 A BE 208437A BE 893636 A BE893636 A BE 893636A
- Authority
- BE
- Belgium
- Prior art keywords
- phenanthrenes
- furans
- preparation
- Prior art date
Links
Classifications
-
- 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
- H02H7/0833—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 for electric motors with control arrangements
-
- 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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/02—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude
- H02P27/026—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using supply voltage with constant frequency and variable amplitude whereby the speed is regulated by measuring the motor speed and comparing it with a given physical value
-
- 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
- H02H7/0856—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 characterised by the protection measure taken
- H02H7/0858—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 characterised by the protection measure taken by reversing, cycling or reducing the power supply to the motor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Direct Current Motors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19813125157 DE3125157A1 (de) | 1981-06-26 | 1981-06-26 | Drehzahlregelschaltung fuer einen motor |
Publications (1)
Publication Number | Publication Date |
---|---|
BE893636A true BE893636A (fr) | 1982-12-27 |
Family
ID=6135452
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE0/208437A BE893636A (fr) | 1981-06-26 | 1982-06-24 | Procede de preparation de furannes et de phenanthrenes |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE893636A (de) |
DE (1) | DE3125157A1 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58172927A (ja) * | 1982-04-02 | 1983-10-11 | 株式会社日立製作所 | 過負荷保護装置 |
US5268623A (en) * | 1985-03-05 | 1993-12-07 | Papst Licensing Gmbh | D.c. motor with a current-limiting arrangement |
DE3607014B4 (de) * | 1985-03-05 | 2007-03-15 | Papst Licensing Gmbh & Co. Kg | Schaltungsanordnung zur pulsbreitenmodulierten Ansteuerung eines Gleichstrommotors |
DE3632671A1 (de) * | 1985-11-13 | 1987-05-21 | Heidelberger Druckmasch Ag | Vorrichtung zur temperaturueberwachung eines gleichstromnebenschlussmotors zum antrieb von rotationsdruckmaschinen |
US4707646A (en) * | 1986-05-29 | 1987-11-17 | Carrier Corporation | Method of limiting motor power output |
DE3914312A1 (de) * | 1989-04-29 | 1990-10-31 | Telefunken Electronic Gmbh | Schaltung zum erkennen der ueberbelastung eines motors |
DE10216836B4 (de) * | 2002-04-16 | 2005-09-22 | Metabowerke Gmbh | Elektrowerkzeuggerät |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1262415B (de) * | 1959-04-29 | 1968-03-07 | Licentia Gmbh | Anordnung zur UEberwachung eines dem Drehmoment einer Gleichstrommaschine proportionalen, vorgegebenen Produktwertes |
CH374411A (fr) * | 1961-06-16 | 1964-01-15 | Schneider Karl | Procédé pour la protection automatique d'une machine à courant continu contre une surcharge et installation pour sa mise en oeuvre |
US3343055A (en) * | 1965-01-13 | 1967-09-19 | Fincor Inc | Adjustable motor speed and torque limit control circuit |
GB1129178A (en) * | 1966-07-06 | 1968-10-02 | Baldwin & Francis Holdings Ltd | Improvements relating to overload protection in electric supply systems |
DE1588600B2 (de) * | 1967-12-04 | 1971-11-18 | Niemann, Gerhard, 4524 Neuenkirchen | Schaltungsanordnung zum selbsttaetigen ueberlastungsschutz eines elektromotors |
US3633073A (en) * | 1969-12-05 | 1972-01-04 | Borg Warner | Overload and overcurrent regulation and protection system |
US3775651A (en) * | 1971-12-17 | 1973-11-27 | Gen Electric | Power system overcurrent protection means utilizing voltage adjustment |
DE2354846A1 (de) * | 1973-11-02 | 1975-05-07 | Bosch Gmbh Robert | Schaltanordnung fuer einen verbraucher, insbesondere einen gleichstrommotor |
DE2415630A1 (de) * | 1974-03-30 | 1975-10-02 | Licentia Gmbh | Phasenanschnittssteuerschaltung aus einem triac und einem rc-glied |
DE2618414A1 (de) * | 1976-04-24 | 1977-11-03 | Licentia Gmbh | Monolithisch integrierte phasenanschnittsteuerung |
-
1981
- 1981-06-26 DE DE19813125157 patent/DE3125157A1/de active Granted
-
1982
- 1982-06-24 BE BE0/208437A patent/BE893636A/fr not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3125157C2 (de) | 1987-10-22 |
DE3125157A1 (de) | 1983-01-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: DEGUSSA A.G. Effective date: 19850624 Owner name: BAYER A.G. Effective date: 19850624 |