FR2269227B2 - - Google Patents
Info
- Publication number
- FR2269227B2 FR2269227B2 FR7511933A FR7511933A FR2269227B2 FR 2269227 B2 FR2269227 B2 FR 2269227B2 FR 7511933 A FR7511933 A FR 7511933A FR 7511933 A FR7511933 A FR 7511933A FR 2269227 B2 FR2269227 B2 FR 2269227B2
- 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
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
- H02H7/093—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 increase beyond, or decrease below, a predetermined level of rotational speed
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
- G01P1/07—Indicating devices, e.g. for remote indication
- G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers
- G01P1/10—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds
- G01P1/103—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds by comparing the value of the measured signal with one or several reference values
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S388/00—Electricity: motor control systems
- Y10S388/90—Specific system operational feature
- Y10S388/902—Compensation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S388/00—Electricity: motor control systems
- Y10S388/907—Specific control circuit element or device
- Y10S388/922—Tuned or resonant circuit
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Direct Current Motors (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Protection Of Generators And Motors (AREA)
- Protection Of Static Devices (AREA)
- Control Of Velocity Or Acceleration (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Tests Of Circuit Breakers, Generators, And Electric Motors (AREA)
- Control Of Electric Motors In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2419744A DE2419744A1 (de) | 1974-04-24 | 1974-04-24 | Regelbare elektrische abschaltvorrichtung zum schutz vor unter- und ueberdrehzahlen einer welle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2269227A2 FR2269227A2 (US06373033-20020416-M00002.png) | 1975-11-21 |
| FR2269227B2 true FR2269227B2 (US06373033-20020416-M00002.png) | 1979-09-21 |
Family
ID=5913781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7511933A Expired FR2269227B2 (US06373033-20020416-M00002.png) | 1974-04-24 | 1975-04-17 |
Country Status (9)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2647675C3 (de) * | 1975-10-23 | 1983-01-20 | Hitachi, Ltd., Tokyo | Elektromotor |
| DE3231259C2 (de) * | 1981-08-26 | 1994-12-22 | Papst Motoren Gmbh & Co Kg | Schaltungsanordnung zur Drehzahlüberwachung |
| DE3504074C2 (de) * | 1985-02-07 | 1993-10-21 | Fein C & E | Sicherheitseinrichtung für ein elektromotorisch angetriebenes Werkzeug |
| DE3520099A1 (de) * | 1985-06-05 | 1986-12-11 | C. & E. Fein Gmbh & Co, 7000 Stuttgart | Sicherheitseinrichtung fuer ein elektromotorisch angetriebenes werkzeug |
| AT390699B (de) * | 1986-05-27 | 1990-06-11 | Austria Antriebstech | Einrichtung zur feststellung des stillstands eines drehstrom-asynchronmotors |
| DE3808044A1 (de) * | 1988-03-11 | 1989-09-21 | Arnold & Richter Kg | Steuer- und regeleinrichtung fuer den filmtransport eines filmprojektors |
| CN114718894B (zh) * | 2022-04-15 | 2023-12-22 | 成都市联洲国际技术有限公司 | 一种多档位直流控制电路 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2734161A (en) * | 1956-02-07 | Frequency | ||
| US2828459A (en) * | 1953-04-21 | 1958-03-25 | Honeywell Regulator Co | Magnetic tape playback speed control system |
| US3097332A (en) * | 1959-01-08 | 1963-07-09 | Minnesota Mining & Mfg | Speed control and regulating circuits |
| US3079523A (en) * | 1960-08-29 | 1963-02-26 | Electroacustic Gmbh | Speed-regulating system for direct-current commutator motors |
| US3665276A (en) * | 1969-03-06 | 1972-05-23 | Mitsubishi Heavy Ind Ltd | Speed controller for prime mover |
| FR2172993B1 (US06373033-20020416-M00002.png) * | 1972-02-25 | 1979-08-03 | Wilke Richard |
-
1974
- 1974-04-24 DE DE2419744A patent/DE2419744A1/de active Pending
-
1975
- 1975-04-02 JP JP50040198A patent/JPS50146848A/ja active Pending
- 1975-04-16 CS CS752643A patent/CS189636B2/cs unknown
- 1975-04-17 FR FR7511933A patent/FR2269227B2/fr not_active Expired
- 1975-04-21 ES ES436813A patent/ES436813A2/es not_active Expired
- 1975-04-22 PL PL1975179818A patent/PL101178B3/pl unknown
- 1975-04-23 CA CA225,304A patent/CA1015399A/en not_active Expired
- 1975-04-23 US US05/570,583 patent/US4020404A/en not_active Expired - Lifetime
- 1975-04-24 GB GB1701675A patent/GB1475636A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA1015399A (en) | 1977-08-09 |
| CS189636B2 (en) | 1979-04-30 |
| JPS50146848A (US06373033-20020416-M00002.png) | 1975-11-25 |
| US4020404A (en) | 1977-04-26 |
| GB1475636A (en) | 1977-06-01 |
| ES436813A2 (es) | 1977-04-01 |
| DE2419744A1 (de) | 1975-11-20 |
| FR2269227A2 (US06373033-20020416-M00002.png) | 1975-11-21 |
| PL101178B3 (pl) | 1978-12-30 |
