GB1199469A - Speed Control of Multi-Speed Induction Motors. - Google Patents

Speed Control of Multi-Speed Induction Motors.

Info

Publication number
GB1199469A
GB1199469A GB5301967A GB5301967A GB1199469A GB 1199469 A GB1199469 A GB 1199469A GB 5301967 A GB5301967 A GB 5301967A GB 5301967 A GB5301967 A GB 5301967A GB 1199469 A GB1199469 A GB 1199469A
Authority
GB
United Kingdom
Prior art keywords
winding
speed
switch
controller
nov
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
GB5301967A
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.)
English Electric Co Ltd
Original Assignee
English Electric Co 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 English Electric Co Ltd filed Critical English Electric Co Ltd
Publication of GB1199469A publication Critical patent/GB1199469A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
    • H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
    • 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
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
    • H02P25/18—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays
    • H02P25/20—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring with arrangements for switching the windings, e.g. with mechanical switches or relays for pole-changing

Abstract

1,199,469. Control of A.C. motors. ENGLISH ELECTRIC CO. Ltd. 21 Nov., 1967 [24 Nov., 1966], No. 53019/67. Heading H2J. '[Also in Division G3] An induction motor 10 for an automatic washing machine 10 has a squirrel cage rotor 11, and its stator is formed in parts 15, 16 which respectively carry high-pole winding 17 and a low-pole winding 18. A programme controller operates change-over switches 22, 30 so that, in the position shown, the winding 17 is effective for operation in a low-speed range, the speed being regulated to a value set on reference device 27. A closed loop control circuit comprises tachometer generator 14, the device 27, controller 24, and a switch 19 in series with the stator winding. The switch 19 and the controller 24 are of the electronic types comprising transistors. The frequency of the supply to the winding 17 is determined by the switch 19. When the programme controller operates the switches 22, 30 to their alternative positions, in which the winding 18 and reference device 28 are in circuit, the motor speed lies within a high-speed range.
GB5301967A 1966-11-24 1967-11-21 Speed Control of Multi-Speed Induction Motors. Expired GB1199469A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT780412 1966-11-24

Publications (1)

Publication Number Publication Date
GB1199469A true GB1199469A (en) 1970-07-22

Family

ID=34631141

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5301967A Expired GB1199469A (en) 1966-11-24 1967-11-21 Speed Control of Multi-Speed Induction Motors.

Country Status (1)

Country Link
GB (1) GB1199469A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120874A (en) * 1982-03-31 1983-12-07 Grundfos As Circulating pump
EP0124698A1 (en) * 1983-03-15 1984-11-14 Diegner & Schade Inh. J. Thäter Speed regulated motor drive
EP0128671A2 (en) * 1983-05-17 1984-12-19 Donald Francis Binns Improvements in or relating to electric motors
GB2270580A (en) * 1992-09-14 1994-03-16 Toshiba Kk Washing machine
US20140227108A1 (en) * 2013-02-08 2014-08-14 Delta Electronics, Inc. Variable-frequency motor device and fan thereof

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2120874A (en) * 1982-03-31 1983-12-07 Grundfos As Circulating pump
EP0124698A1 (en) * 1983-03-15 1984-11-14 Diegner & Schade Inh. J. Thäter Speed regulated motor drive
EP0128671A2 (en) * 1983-05-17 1984-12-19 Donald Francis Binns Improvements in or relating to electric motors
EP0128671A3 (en) * 1983-05-17 1986-02-12 Donald Francis Binns Improvements in or relating to electric motors
GB2270580A (en) * 1992-09-14 1994-03-16 Toshiba Kk Washing machine
US5333474A (en) * 1992-09-14 1994-08-02 Kabushiki Kaisha Toshiba Washing machine
GB2270580B (en) * 1992-09-14 1996-02-14 Toshiba Kk Washing machine
US20140227108A1 (en) * 2013-02-08 2014-08-14 Delta Electronics, Inc. Variable-frequency motor device and fan thereof
US10056855B2 (en) * 2013-02-08 2018-08-21 Delta Electronics, Inc. Variable-frequency motor device and fan thereof

Similar Documents

Publication Publication Date Title
GB1199469A (en) Speed Control of Multi-Speed Induction Motors.
GB1380995A (en) Electrical circuit for controlling a commutatorless direct-current electrical motor
GB1169059A (en) An Arrangement of Pole-Changing Motors in Washing Machines
ES457094A1 (en) Speed control apparatus for AC elevator
GB1115658A (en) Arrangement for controlling three phase a.c. asynchronous motors
GB944552A (en) Automatic control arrangement for take-up drives
ES344581A1 (en) Cooling device in an electric motor, particularly adapted for machines for washing clothes. (Machine-translation by Google Translate, not legally binding)
GB1140921A (en) Circular knitting machines
GB984706A (en) Apparatus controlling the speed of direct current motors
ATE27212T1 (en) SPEED REGULATED MACHINE DRIVE.
GB1450078A (en) Method of and a device for reducing the influence of backlash in the drive of a machine tool
FR2281669A1 (en) Commutatorless variable speed drive with AC supply - has starting running and speed check windings
GB1157260A (en) Pole-Changing Electrical Machine
GB1017685A (en) Speed controlled direct current motor with centrifugal switch
GB1167720A (en) An improved safety device for a door lock on washing machines
JPS52114912A (en) Motor driven sewing machine speed controlling circuit
ES8300902A1 (en) Washing machine drive system
JPS5512866A (en) Method of driving pneumatic clearer in spinning machine
GB1222893A (en) Electric motor control circuit
FR2295618A1 (en) SPEED REGULATION CIRCUIT FOR DIRECT CURRENT MOTORS
JPS5333316A (en) Speed changeeover control circuit for electric motor in sewing machine
GB1119992A (en) Improvements in multispeed induction type electric motor
GB875768A (en) Improvements in rotary electric machines
ES443986A1 (en) Safety supply circuit for washing machine drum driving motors
JPS5317918A (en) Velocity control device of common scherbius type induction motor

Legal Events

Date Code Title Description
429A Application made for amendment of specification (sect. 29/1949)
429H Application (made) for amendment of specification now open to opposition (sect. 29/1949)
429D Case decided by the comptroller ** specification amended (sect. 29/1949)
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees