ZA721277B - Electrical motor circuits - Google Patents
Electrical motor circuitsInfo
- Publication number
- ZA721277B ZA721277B ZA721277A ZA721277A ZA721277B ZA 721277 B ZA721277 B ZA 721277B ZA 721277 A ZA721277 A ZA 721277A ZA 721277 A ZA721277 A ZA 721277A ZA 721277 B ZA721277 B ZA 721277B
- Authority
- ZA
- South Africa
- Prior art keywords
- electrical motor
- motor circuits
- circuits
- electrical
- motor
- 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
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Direct Current Motors (AREA)
- Protection Of Generators And Motors (AREA)
- Stopping Of Electric Motors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB604471 | 1971-03-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA721277B true ZA721277B (en) | 1973-04-25 |
Family
ID=9807397
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA721277A ZA721277B (en) | 1971-03-04 | 1972-02-28 | Electrical motor circuits |
Country Status (17)
Country | Link |
---|---|
US (1) | US3764873A (xx) |
JP (1) | JPS5225930B1 (xx) |
AT (1) | AT314664B (xx) |
BE (1) | BE780220A (xx) |
CA (1) | CA947377A (xx) |
CH (1) | CH536037A (xx) |
DE (1) | DE2210747C3 (xx) |
DK (1) | DK138718B (xx) |
ES (1) | ES400406A1 (xx) |
FR (1) | FR2128609B1 (xx) |
GB (1) | GB1334736A (xx) |
IE (1) | IE36132B1 (xx) |
IT (1) | IT956220B (xx) |
NL (1) | NL157757B (xx) |
NO (1) | NO133169C (xx) |
SE (1) | SE372669B (xx) |
ZA (1) | ZA721277B (xx) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4406979A (en) * | 1980-03-18 | 1983-09-27 | Technical Operations Limited | Fail-safe system for pulse-controlled three-terminal d.c. motor |
US4385266A (en) * | 1980-03-18 | 1983-05-24 | Technical Operations Limited | Field weakening system for pulse-controlled three-terminal d.c. motor |
CN1154007A (zh) * | 1995-12-06 | 1997-07-09 | 田京涛 | 一种三相交流电动机保护装置 |
US6259587B1 (en) * | 1999-06-17 | 2001-07-10 | Minimed Inc. | Direct current motor safety circuits for fluid delivery systems |
DE112011100249T5 (de) * | 2010-01-16 | 2012-11-08 | Borgwarner Inc. | Turbolader-Steuergestänge mit verringertem Wärmefluss |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3424959A (en) * | 1964-09-24 | 1969-01-28 | Jordan Controls Inc | Split phase induction motor solid state position control with braking at balance |
AT282003B (de) * | 1966-11-28 | 1970-06-10 | Lansing Bagnall Ltd | Schaltungsanordnung eines an einen von einem Steuerimpulsgenerator ventilgesteuerten Gleichstromsteller angeschlossenen, mit zwei Feldwicklungen zur Drehrichtungsumkehr ausgebildeten Serienschlußmotors |
US3536980A (en) * | 1968-05-29 | 1970-10-27 | Jamesbury Corp | Solid state reversible split phase servo-motor control including braking at null and motor overload protection |
-
1972
- 1972-02-24 GB GB604471A patent/GB1334736A/en not_active Expired
- 1972-02-28 ZA ZA721277A patent/ZA721277B/xx unknown
- 1972-02-29 US US00230288A patent/US3764873A/en not_active Expired - Lifetime
- 1972-02-29 IT IT21205/72A patent/IT956220B/it active
- 1972-03-01 IE IE253/72A patent/IE36132B1/xx unknown
- 1972-03-02 NO NO659/72*[A patent/NO133169C/no unknown
- 1972-03-02 CA CA136,026A patent/CA947377A/en not_active Expired
- 1972-03-02 AT AT175472A patent/AT314664B/de not_active IP Right Cessation
- 1972-03-03 BE BE780220A patent/BE780220A/xx not_active IP Right Cessation
- 1972-03-03 JP JP47022201A patent/JPS5225930B1/ja active Pending
- 1972-03-03 SE SE7202742A patent/SE372669B/xx unknown
- 1972-03-03 CH CH317372A patent/CH536037A/de not_active IP Right Cessation
- 1972-03-03 DK DK101072AA patent/DK138718B/da not_active IP Right Cessation
- 1972-03-03 NL NL7202824.A patent/NL157757B/xx not_active IP Right Cessation
- 1972-03-03 ES ES400406A patent/ES400406A1/es not_active Expired
- 1972-03-03 FR FR7207530A patent/FR2128609B1/fr not_active Expired
- 1972-03-06 DE DE2210747A patent/DE2210747C3/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3764873A (en) | 1973-10-09 |
DK138718C (xx) | 1979-03-19 |
JPS4729814A (xx) | 1972-11-07 |
CA947377A (en) | 1974-05-14 |
ES400406A1 (es) | 1975-01-01 |
CH536037A (de) | 1973-04-15 |
DE2210747B2 (de) | 1975-02-06 |
AT314664B (de) | 1974-04-25 |
NO133169C (xx) | 1976-03-17 |
DE2210747C3 (de) | 1975-09-11 |
DK138718B (da) | 1978-10-16 |
IT956220B (it) | 1973-10-10 |
GB1334736A (en) | 1973-10-24 |
FR2128609B1 (xx) | 1976-07-09 |
JPS5225930B1 (xx) | 1977-07-11 |
NL7202824A (xx) | 1972-09-06 |
IE36132L (en) | 1972-09-04 |
NO133169B (xx) | 1975-12-08 |
FR2128609A1 (xx) | 1972-10-20 |
DE2210747A1 (de) | 1972-09-28 |
NL157757B (nl) | 1978-08-15 |
IE36132B1 (en) | 1976-09-01 |
SE372669B (xx) | 1974-12-23 |
BE780220A (fr) | 1972-07-03 |
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