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NO121678B - - Google Patents

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Publication number
NO121678B
NO121678B NO170633A NO17063367A NO121678B NO 121678 B NO121678 B NO 121678B NO 170633 A NO170633 A NO 170633A NO 17063367 A NO17063367 A NO 17063367A NO 121678 B NO121678 B NO 121678B
Authority
NO
Norway
Prior art keywords
filter cake
lead
water
organic medium
acid
Prior art date
Application number
NO170633A
Other languages
English (en)
Norwegian (no)
Inventor
P Smith
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 NO121678B publication Critical patent/NO121678B/no

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06Arrangements 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
    • H02P7/18Arrangements 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
    • H02P7/24Arrangements 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
    • H02P7/28Arrangements 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
    • H02P7/281Arrangements 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 the DC motor being operated in four quadrants
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06Arrangements 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
    • H02P7/18Arrangements 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
    • H02P7/24Arrangements 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
    • H02P7/28Arrangements 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
    • H02P7/285Arrangements 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
    • H02P7/29Arrangements 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
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06Arrangements 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
    • H02P7/18Arrangements 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
    • H02P7/30Arrangements 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 magnetic devices with controllable degree of saturation, i.e. transductors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Stopping Of Electric Motors (AREA)
  • Control Of Direct Current Motors (AREA)
  • Control Of Electric Motors In General (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
NO170633A 1966-11-28 1967-11-22 NO121678B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB53133/66A GB1185650A (en) 1966-11-28 1966-11-28 Improvements in or relating to Control Systems for Electric Motors

Publications (1)

Publication Number Publication Date
NO121678B true NO121678B (de) 1971-03-29

Family

ID=10466761

Family Applications (1)

Application Number Title Priority Date Filing Date
NO170633A NO121678B (de) 1966-11-28 1967-11-22

Country Status (11)

Country Link
US (1) US3504257A (de)
AT (1) AT282003B (de)
BE (1) BE707197A (de)
CH (1) CH482347A (de)
DE (1) DE1588501A1 (de)
ES (1) ES347708A1 (de)
FR (1) FR1549623A (de)
GB (1) GB1185650A (de)
NL (1) NL6716096A (de)
NO (1) NO121678B (de)
SE (1) SE342367B (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3697845A (en) * 1970-09-29 1972-10-10 Alsthom Cgee Circuit for a direct current electric motor which is controlled by thyristors both while running and while being braked
GB1334736A (en) * 1971-03-04 1973-10-24 Lansing Bagnall Ltd Electrical motor circuits
GB1476316A (en) * 1973-06-30 1977-06-10 Lucas Industries Ltd Control circuits for electrically driven vehicles
DE2624236A1 (de) * 1976-05-29 1977-12-15 Licentia Gmbh Schaltanordnung zum bremsen eines universalmotors
GB1600262A (en) * 1977-11-03 1981-10-14 Lansing Bagnall Ltd Control circuit for a dc motor
FR2466131A1 (fr) * 1979-09-25 1981-03-27 Suisse Horlogerie Moteur pas a pas monophase bipolaire a deux sens de rotation
US4384240A (en) * 1980-03-18 1983-05-17 Technical Operations Limited Regenerative braking system for three-terminal d.c. motor
EP0268018A3 (de) * 1986-11-15 1988-11-30 Rheinmetall GmbH Vierquadrantenantrieb mit einem Gleichstrommotor
US5208741A (en) * 1991-03-28 1993-05-04 General Electric Company Chopper circuit for dynamic braking in an electric power conversion system
US5117166A (en) * 1991-03-28 1992-05-26 General Electric Company Chopper circuit for dynamic braking in an electric power conversion system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507918A (en) * 1947-04-26 1950-05-16 Electric Service Mfg Co Dynamic brake for electric motors
US2624029A (en) * 1950-05-06 1952-12-30 Gen Motors Corp Dynamic braking control
BE516653A (de) * 1952-01-02 1900-01-01
US2945998A (en) * 1958-06-25 1960-07-19 Ford Motor Co Dynamic braking of electric motors
US3335351A (en) * 1965-03-05 1967-08-08 Gen Electric Dc motor control circuit

Also Published As

Publication number Publication date
FR1549623A (de) 1968-12-13
DE1588501A1 (de) 1970-12-17
GB1185650A (en) 1970-03-25
BE707197A (de) 1968-04-01
ES347708A1 (es) 1969-02-16
NL6716096A (de) 1968-05-29
US3504257A (en) 1970-03-31
AT282003B (de) 1970-06-10
SE342367B (de) 1972-01-31
CH482347A (de) 1969-11-30

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