FR1572815A - - Google Patents
Info
- Publication number
- FR1572815A FR1572815A FR1572815DA FR1572815A FR 1572815 A FR1572815 A FR 1572815A FR 1572815D A FR1572815D A FR 1572815DA FR 1572815 A FR1572815 A FR 1572815A
- 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
- H02H7/0833—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
- H02H7/0844—Fail safe control, e.g. by comparing control signal and controlled current, isolating motor on commutation error
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- 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
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
- H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
- H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
- H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
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- 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
- Y10S388/903—Protective, e.g. voltage or current limit
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US65377767A | 1967-07-17 | 1967-07-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1572815A true FR1572815A (fr) | 1969-05-19 |
Family
ID=24622266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1572815D Expired FR1572815A (fr) | 1967-07-17 | 1969-05-18 |
Country Status (2)
Country | Link |
---|---|
US (1) | US3484652A (fr) |
FR (1) | FR1572815A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2083084A1 (fr) * | 1970-02-17 | 1971-12-10 | Cableform Ltd |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3562617A (en) * | 1969-04-04 | 1971-02-09 | Square D Co | Malfunction detector circuit for a solid state electric motor controlled vehicle |
CA912690A (en) * | 1970-05-07 | 1972-10-17 | T. Wilson John | Circuit breaker including improved overcurrent protective device |
US3666994A (en) * | 1970-06-18 | 1972-05-30 | Westinghouse Electric Corp | Overcurrent protective device |
US3902105A (en) * | 1973-12-26 | 1975-08-26 | Raymond Corp | Thyristor motor control circuit |
US4057752A (en) * | 1975-10-28 | 1977-11-08 | Towmotor Corporation | Firing control oscillator for a solid state switch |
JPS5812829B2 (ja) * | 1976-04-28 | 1983-03-10 | 株式会社日立製作所 | 直流回路の保護装置 |
US4218730A (en) * | 1977-11-09 | 1980-08-19 | Hitachi, Ltd. | Transistor switching apparatus for use in the control of a D.C. load |
JPS5579679A (en) * | 1978-12-08 | 1980-06-16 | Hitachi Ltd | Controller for transistor chopper |
US4406979A (en) * | 1980-03-18 | 1983-09-27 | Technical Operations Limited | Fail-safe system for pulse-controlled three-terminal d.c. motor |
US4508999A (en) * | 1983-01-05 | 1985-04-02 | Towmotor Corporation | Short circuit protection apparatus |
DE4000820A1 (de) * | 1990-01-13 | 1991-07-18 | Bosch Gmbh Robert | Schutzschaltung fuer einen elektrischen verbraucher |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1260055B (de) * | 1964-05-30 | 1968-02-01 | Aeg Elotherm Gmbh | Verfahren zum Betrieb von Generatoren fuer Funkenerosionsmaschinen und Schaltungsanordnung zur Ausuebung des Verfahrens |
GB1090907A (en) * | 1964-11-17 | 1967-11-15 | Eaton Yale & Towne | Electrical control system for an industrial truck |
US3349309A (en) * | 1964-12-04 | 1967-10-24 | Yale & Towne Inc | Industrial truck power circuit |
US3413520A (en) * | 1966-11-10 | 1968-11-26 | Honeywell Inc | Solid state motor control circuit |
-
1967
- 1967-07-17 US US653777A patent/US3484652A/en not_active Expired - Lifetime
-
1969
- 1969-05-18 FR FR1572815D patent/FR1572815A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2083084A1 (fr) * | 1970-02-17 | 1971-12-10 | Cableform Ltd |
Also Published As
Publication number | Publication date |
---|---|
US3484652A (en) | 1969-12-16 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |