GB1064803A - System for control of temperature of rotors of electrical rotary machines - Google Patents

System for control of temperature of rotors of electrical rotary machines

Info

Publication number
GB1064803A
GB1064803A GB12905/65A GB1290565A GB1064803A GB 1064803 A GB1064803 A GB 1064803A GB 12905/65 A GB12905/65 A GB 12905/65A GB 1290565 A GB1290565 A GB 1290565A GB 1064803 A GB1064803 A GB 1064803A
Authority
GB
United Kingdom
Prior art keywords
temperature
rotor
control
resistor
circuit
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
GB12905/65A
Other languages
English (en)
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB1064803A publication Critical patent/GB1064803A/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
    • H02H7/085—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 against excessive load
    • H02H7/0852—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 against excessive load directly responsive to abnormal temperature by using a temperature sensor
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Protection Of Generators And Motors (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Control Of Ac Motors In General (AREA)
GB12905/65A 1964-03-31 1965-03-26 System for control of temperature of rotors of electrical rotary machines Expired GB1064803A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1760464A JPS4323001B1 (cg-RX-API-DMAC10.html) 1964-03-31 1964-03-31

Publications (1)

Publication Number Publication Date
GB1064803A true GB1064803A (en) 1967-04-12

Family

ID=11948470

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12905/65A Expired GB1064803A (en) 1964-03-31 1965-03-26 System for control of temperature of rotors of electrical rotary machines

Country Status (4)

Country Link
US (1) US3358208A (cg-RX-API-DMAC10.html)
JP (1) JPS4323001B1 (cg-RX-API-DMAC10.html)
DE (1) DE1513219B2 (cg-RX-API-DMAC10.html)
GB (1) GB1064803A (cg-RX-API-DMAC10.html)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2509002A1 (de) * 1975-01-17 1976-07-22 Bbc Brown Boveri & Cie Messanordnung
US4071871A (en) * 1975-12-29 1978-01-31 Texas Instruments Incorporated Motor protector circuit
US4071875A (en) * 1975-12-29 1978-01-31 Texas Instruments Incorporated Detector apparatus
US4114077A (en) * 1977-04-01 1978-09-12 Westinghouse Electric Corp. Rotor overtemperature protection for electric motors
JPS57106002A (en) * 1980-12-23 1982-07-01 Murata Manufacturing Co Positive temperature coefficient thermistor
DE3313418C2 (de) * 1983-04-13 1995-05-18 Loher Gmbh Anordnung zum Überwachen der Läufertemperatur einer elektrischen Asynchron-Maschine mit Kurzschlußläufer
US6218749B1 (en) * 1998-11-30 2001-04-17 Reliance Electric Technologies, Llc Electric motor having rotor-embedded sensor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3262014A (en) * 1962-02-05 1966-07-19 Wagner Electric Corp Equipment protection means
US3268768A (en) * 1963-06-03 1966-08-23 Tecumseh Products Co Temperature protection circuit
US3305698A (en) * 1963-09-16 1967-02-21 Motorola Inc Electric motor overheating protection circuit

Also Published As

Publication number Publication date
JPS4323001B1 (cg-RX-API-DMAC10.html) 1968-10-03
DE1513219B2 (de) 1973-08-16
US3358208A (en) 1967-12-12
DE1513219A1 (de) 1969-10-09

Similar Documents

Publication Publication Date Title
US5107391A (en) Circuit for driving one or more electromagnetic relays which uses minimum power and results in minimum temperature in the relays
US4375613A (en) Electrical control circuit
GB876415A (en) Improvements in or relating to undervoltage sensing circuits
KR920018555A (ko) 전동기용 보호장치
US3500074A (en) Fail-safe controller
US4047082A (en) Variable threshold starting circuit for induction motor
US3667013A (en) Hysteresis motor control circuit apparatus
US3108214A (en) Ward-leonard motor current overload control system
GB2160036A (en) Protection circuit for stalling protection in commutatorless direct current motors
US3358208A (en) System for control of temperature of rotors of electrical rotary machines
US4103299A (en) Two-wire pilot device solid state control system
US3036241A (en) Voltage detection network
GB1174641A (en) Improvements in Voltage Regulators
US3359457A (en) Device for overload protection of electrical equipment
US3378744A (en) Slip detection circuit
US3514686A (en) Speed responsive motor control circuit
US3020462A (en) Synchronous motor control
GB906675A (en) Voltage control systems
US3241040A (en) Generator regulator with overload protection means
JPS555252A (en) Method of detecting fault of tool in machine tool
SU482855A1 (ru) Устройство дл регулировани напр жени генераторов посто нного тока
SU393687A1 (ru) Устройство дл1я измерения тока возбуждения в бесщеточных синхронных машинах
SU658544A1 (ru) Стабилизатор посто нного напр жени с защитой от перегрузок и коротких замыканий
JPS5556495A (en) A.c. motor controller
KR890001044B1 (ko) 전자식 과전류 릴레이