ZA701013B - Safety circuits for pulse controlled electric motors - Google Patents

Safety circuits for pulse controlled electric motors

Info

Publication number
ZA701013B
ZA701013B ZA701013A ZA701013A ZA701013B ZA 701013 B ZA701013 B ZA 701013B ZA 701013 A ZA701013 A ZA 701013A ZA 701013 A ZA701013 A ZA 701013A ZA 701013 B ZA701013 B ZA 701013B
Authority
ZA
South Africa
Prior art keywords
electric motors
controlled electric
safety circuits
pulse controlled
pulse
Prior art date
Application number
ZA701013A
Other languages
English (en)
Inventor
D Thombs
Original Assignee
Lansing Bagnall Ltd
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 Lansing Bagnall Ltd filed Critical Lansing Bagnall Ltd
Publication of ZA701013B publication Critical patent/ZA701013B/xx

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
    • H02H7/10—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 converters; for rectifiers
    • H02H7/12—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 converters; for rectifiers for static converters or rectifiers
    • H02H7/1213—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 converters; for rectifiers for static converters or rectifiers for DC-DC converters
    • 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
    • H02P7/282—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 field supply only
    • 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
    • H02P7/298—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 and field supplies

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Direct Current Motors (AREA)
  • Stopping Of Electric Motors (AREA)
  • Protection Of Generators And Motors (AREA)
ZA701013A 1969-02-28 1970-02-16 Safety circuits for pulse controlled electric motors ZA701013B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1085769 1969-02-28

Publications (1)

Publication Number Publication Date
ZA701013B true ZA701013B (en) 1971-03-31

Family

ID=9975596

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA701013A ZA701013B (en) 1969-02-28 1970-02-16 Safety circuits for pulse controlled electric motors

Country Status (10)

Country Link
AT (1) AT297162B (fr)
BE (1) BE746674A (fr)
BR (1) BR7017050D0 (fr)
CH (1) CH526217A (fr)
DE (1) DE2007704A1 (fr)
ES (1) ES376975A1 (fr)
FR (1) FR2033144A5 (fr)
GB (1) GB1251722A (fr)
NL (1) NL7002824A (fr)
ZA (1) ZA701013B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2099677B1 (fr) * 1970-07-30 1977-08-05 Honeywell Inf Systems Italia
US3914675A (en) * 1973-09-17 1975-10-21 Gen Electric Fault detector circuit for electric vehicle control
FR2358700A1 (fr) * 1976-07-17 1978-02-10 Vaillant Sa Dispositif de controle pour le rechargement d'un systeme de chauffage electrique a accumulation
DE2831479A1 (de) * 1978-07-18 1980-01-31 Bosch Gmbh Robert Schaltungsanordnung zur einstellung des stromes von einer batterie zu einem elektromotor
DE4133302C2 (de) * 1991-10-08 1994-08-25 Jungheinrich Ag Überlastschutz für die Leistungssteuerstufe eines Gleichstrommotors

Also Published As

Publication number Publication date
ES376975A1 (es) 1972-05-01
DE2007704A1 (de) 1970-10-01
GB1251722A (fr) 1971-10-27
CH526217A (de) 1972-07-31
BE746674A (fr) 1970-07-31
NL7002824A (fr) 1970-09-01
AT297162B (de) 1972-03-10
BR7017050D0 (pt) 1973-01-16
FR2033144A5 (fr) 1970-11-27

Similar Documents

Publication Publication Date Title
JPS52101410A (en) Dc power control circuit
YU203270A (en) Electric circuit for ac line operation
IE35048B1 (en) Fractional-horsepower electrical motors
IE33692B1 (en) Synchronous electric motor
AU6394173A (en) Electric circuits
YU33612B (en) Control equipment on compositions of electric vehicles
ZA701013B (en) Safety circuits for pulse controlled electric motors
AU2026470A (en) Electrical apparatus
AU5651873A (en) Safety apparatus
ZA711822B (en) Electrical relays
ZA703088B (en) Electric cables
IL34485A (en) A system for controlling the speed of an electric motor
ZA702197B (en) Electric switches
ZA701320B (en) Electric ignition system
IL35172A0 (en) Electrical components
AU437846B2 (en) Safety circuits for pulse controlled electric motors
AU1157570A (en) Safety circuits for pulse controlled electric motors
ZA704366B (en) Improved speed control for electric motors
CA904391A (en) Safety circuits for pulse controlled electric motors
AU5308673A (en) Electric circuits
IE34435B1 (en) Electric pulse generator
CA824791A (en) Control circuits for electric motors
CA762081A (en) Safety circuits for electric motors
AU2118170A (en) Improvements in or relating to control circuits for d.c. electric motors.
IL35114A (en) Electric switches