CA947377A - Pulse-operated electrical motor safety circuits - Google Patents

Pulse-operated electrical motor safety circuits

Info

Publication number
CA947377A
CA947377A CA136,026A CA136026A CA947377A CA 947377 A CA947377 A CA 947377A CA 136026 A CA136026 A CA 136026A CA 947377 A CA947377 A CA 947377A
Authority
CA
Canada
Prior art keywords
pulse
electrical motor
safety circuits
operated electrical
motor safety
Prior art date
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
Application number
CA136,026A
Other languages
English (en)
Other versions
CA136026S (en
Inventor
Royston D. Elliott
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linde Material Handling UK Ltd
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
Application granted granted Critical
Publication of CA947377A publication Critical patent/CA947377A/en
Expired legal-status Critical Current

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)
CA136,026A 1971-03-04 1972-03-02 Pulse-operated electrical motor safety circuits Expired CA947377A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB604471 1971-03-04

Publications (1)

Publication Number Publication Date
CA947377A true CA947377A (en) 1974-05-14

Family

ID=9807397

Family Applications (1)

Application Number Title Priority Date Filing Date
CA136,026A Expired CA947377A (en) 1971-03-04 1972-03-02 Pulse-operated electrical motor safety circuits

Country Status (17)

Country Link
US (1) US3764873A (fr)
JP (1) JPS5225930B1 (fr)
AT (1) AT314664B (fr)
BE (1) BE780220A (fr)
CA (1) CA947377A (fr)
CH (1) CH536037A (fr)
DE (1) DE2210747C3 (fr)
DK (1) DK138718B (fr)
ES (1) ES400406A1 (fr)
FR (1) FR2128609B1 (fr)
GB (1) GB1334736A (fr)
IE (1) IE36132B1 (fr)
IT (1) IT956220B (fr)
NL (1) NL157757B (fr)
NO (1) NO133169C (fr)
SE (1) SE372669B (fr)
ZA (1) ZA721277B (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4385266A (en) * 1980-03-18 1983-05-24 Technical Operations Limited Field weakening system for pulse-controlled three-terminal d.c. motor
US4406979A (en) * 1980-03-18 1983-09-27 Technical Operations Limited Fail-safe 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
WO2011087939A2 (fr) * 2010-01-16 2011-07-21 Borgwarner Inc. Liaison de commande de turbocompresseur à écoulement de chaleur réduit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
SE372669B (fr) 1974-12-23
US3764873A (en) 1973-10-09
IE36132B1 (en) 1976-09-01
NO133169B (fr) 1975-12-08
GB1334736A (en) 1973-10-24
ZA721277B (en) 1973-04-25
FR2128609B1 (fr) 1976-07-09
DE2210747C3 (de) 1975-09-11
NL7202824A (fr) 1972-09-06
JPS4729814A (fr) 1972-11-07
JPS5225930B1 (fr) 1977-07-11
DK138718C (fr) 1979-03-19
DE2210747A1 (de) 1972-09-28
CH536037A (de) 1973-04-15
DE2210747B2 (de) 1975-02-06
FR2128609A1 (fr) 1972-10-20
BE780220A (fr) 1972-07-03
NO133169C (fr) 1976-03-17
ES400406A1 (es) 1975-01-01
IT956220B (it) 1973-10-10
IE36132L (en) 1972-09-04
NL157757B (nl) 1978-08-15
AT314664B (de) 1974-04-25
DK138718B (da) 1978-10-16

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